PowerPC bugs
On Thu, Oct 04, 2012 at 01:53:32PM +0100, o jordan wrote:
> Is it too late to get some PowerPC changes into the yaboot options on > the live/desktop ISOs? > > I have an idea to build back in the legacy nvidia framebuffers into > the PowerPC kernel. Whilst this is a backwards step in many respects, > it is the only way (I can think of) to get over the 16 colour > limitation of the openfirmware framebuffer. Currently if you turn off > kernel modesetting with nouveau (and this it seems is a necessity now > for many cards of some vintage) you are thrown into a desktop with > only 16 colours on PowerPC and this is a largely unusuable desktop. > > As this kernel change will disable KMS (which we don't want to do for > every nvidia card) the boot options need updating so that the legacy > framebuffers are turned off by default: > > video=radeonfb:off video=rivafb:off video=nvidiafb:off > Since you cannot easily remove default yaboot parameters a new > 'failsafe' option would need to be created on the desktop ISO without > these parameters. This could replace the 'nosplash' option. The new > yaboot parameters would be: nomodeset vt.handoff=7 I know you don't > think vt.handoff=7 makes any sense with yaboot, but it does actually > boot you into a higher colour depth than you would without it. This > solves the problem of the installer windows not appearing in 8 bit > pseudo colour. I think I can create a patch for yaboot-installer (to > also introduce a failsafe option on an installed system), but I have > no clue what files are involved in the creation of the ISOs. If you > can point me in the right direction then I can take (a rather > uneducated) look at them and see if I can come up with the necessary > changes myself. Of course this all depends on getting the PowerPC > kernel changed, something that I have struggled to do in the past. > Like yourself they are very cautious about changes. I would need help > from somebody within Canonical to support the kernel change. These > changes would not improve the out-of-the box everything working 100% > on the first boot support of the PowerPC port (that can only come from > the kernel/radeon/nouveau developers), but the creation of a failsafe > mode would make the radeon and nvidia user experience much better. To be honest, as I think I said before: I'm not going to touch these options at all without review from the kernel and X teams (CCed). If they say it's necessary, then sure; but I would rather that somebody first checked whether this is a consequence of a bug we can fix, because it's always better for the software to work by default than to require boot parameters. Regards, -- Colin Watson [cjwatson@ubuntu.com] -- kernel-team mailing list kernel-team@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kernel-team |
PowerPC bugs
On Thu, Oct 04, 2012 at 01:53:32PM +0100, o jordan wrote:
> Is it too late to get some PowerPC changes into the yaboot options on > the live/desktop ISOs? > > I have an idea to build back in the legacy nvidia framebuffers into > the PowerPC kernel. Whilst this is a backwards step in many respects, > it is the only way (I can think of) to get over the 16 colour > limitation of the openfirmware framebuffer. Currently if you turn off > kernel modesetting with nouveau (and this it seems is a necessity now > for many cards of some vintage) you are thrown into a desktop with > only 16 colours on PowerPC and this is a largely unusuable desktop. > > As this kernel change will disable KMS (which we don't want to do for > every nvidia card) the boot options need updating so that the legacy > framebuffers are turned off by default: > > video=radeonfb:off video=rivafb:off video=nvidiafb:off > Since you cannot easily remove default yaboot parameters a new > 'failsafe' option would need to be created on the desktop ISO without > these parameters. This could replace the 'nosplash' option. The new > yaboot parameters would be: nomodeset vt.handoff=7 I know you don't > think vt.handoff=7 makes any sense with yaboot, but it does actually > boot you into a higher colour depth than you would without it. This > solves the problem of the installer windows not appearing in 8 bit > pseudo colour. I think I can create a patch for yaboot-installer (to > also introduce a failsafe option on an installed system), but I have > no clue what files are involved in the creation of the ISOs. If you > can point me in the right direction then I can take (a rather > uneducated) look at them and see if I can come up with the necessary > changes myself. Of course this all depends on getting the PowerPC > kernel changed, something that I have struggled to do in the past. > Like yourself they are very cautious about changes. I would need help > from somebody within Canonical to support the kernel change. These > changes would not improve the out-of-the box everything working 100% > on the first boot support of the PowerPC port (that can only come from > the kernel/radeon/nouveau developers), but the creation of a failsafe > mode would make the radeon and nvidia user experience much better. To be honest, as I think I said before: I'm not going to touch these options at all without review from the kernel and X teams (CCed). If they say it's necessary, then sure; but I would rather that somebody first checked whether this is a consequence of a bug we can fix, because it's always better for the software to work by default than to require boot parameters. Regards, -- Colin Watson [cjwatson@ubuntu.com] -- Ubuntu-x mailing list Ubuntu-x@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-x -- kernel-team mailing list kernel-team@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kernel-team |
PowerPC bugs
On Thu, Oct 04, 2012 at 01:53:32PM +0100, o jordan wrote:
> Is it too late to get some PowerPC changes into the yaboot options on > the live/desktop ISOs? > > I have an idea to build back in the legacy nvidia framebuffers into > the PowerPC kernel. Whilst this is a backwards step in many respects, > it is the only way (I can think of) to get over the 16 colour > limitation of the openfirmware framebuffer. Currently if you turn off > kernel modesetting with nouveau (and this it seems is a necessity now > for many cards of some vintage) you are thrown into a desktop with > only 16 colours on PowerPC and this is a largely unusuable desktop. > > As this kernel change will disable KMS (which we don't want to do for > every nvidia card) the boot options need updating so that the legacy > framebuffers are turned off by default: > > video=radeonfb:off video=rivafb:off video=nvidiafb:off > Since you cannot easily remove default yaboot parameters a new > 'failsafe' option would need to be created on the desktop ISO without > these parameters. This could replace the 'nosplash' option. The new > yaboot parameters would be: nomodeset vt.handoff=7 I know you don't > think vt.handoff=7 makes any sense with yaboot, but it does actually > boot you into a higher colour depth than you would without it. This > solves the problem of the installer windows not appearing in 8 bit > pseudo colour. I think I can create a patch for yaboot-installer (to > also introduce a failsafe option on an installed system), but I have > no clue what files are involved in the creation of the ISOs. If you > can point me in the right direction then I can take (a rather > uneducated) look at them and see if I can come up with the necessary > changes myself. Of course this all depends on getting the PowerPC > kernel changed, something that I have struggled to do in the past. > Like yourself they are very cautious about changes. I would need help > from somebody within Canonical to support the kernel change. These > changes would not improve the out-of-the box everything working 100% > on the first boot support of the PowerPC port (that can only come from > the kernel/radeon/nouveau developers), but the creation of a failsafe > mode would make the radeon and nvidia user experience much better. To be honest, as I think I said before: I'm not going to touch these options at all without review from the kernel and X teams (CCed). If they say it's necessary, then sure; but I would rather that somebody first checked whether this is a consequence of a bug we can fix, because it's always better for the software to work by default than to require boot parameters. Regards, -- Colin Watson [cjwatson@ubuntu.com] -- Ubuntu-x mailing list Ubuntu-x@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-x -- kernel-team mailing list kernel-team@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kernel-team |
PowerPC bugs
>
> On Thu, Oct 04, 2012 at 01:53:32PM +0100, o jordan wrote: > > Is it too late to get some PowerPC changes into the yaboot options on > > the live/desktop ISOs? > > > > I have an idea to build back in the legacy nvidia framebuffers into > > the PowerPC kernel. Whilst this is a backwards step in many respects, > > it is the only way (I can think of) to get over the 16 colour > > limitation of the openfirmware framebuffer. Currently if you turn off > > kernel modesetting with nouveau (and this it seems is a necessity now > > for many cards of some vintage) you are thrown into a desktop with > > only 16 colours on PowerPC and this is a largely unusuable desktop. > > > > As this kernel change will disable KMS (which we don't want to do for > > every nvidia card) the boot options need updating so that the legacy > > framebuffers are turned off by default: > > > > video=radeonfb:off video=rivafb:off video=nvidiafb:off* > > Since you cannot easily remove default yaboot parameters a new > > 'failsafe' option would need to be created on the desktop ISO without > > these parameters. This could replace the 'nosplash' option. The new > > yaboot parameters would be: nomodeset vt.handoff=7 I know you don't > > think vt.handoff=7 makes any sense with yaboot, but it does actually > > boot you into a higher colour depth than you would without it. This > > solves the problem of the installer windows not appearing in 8 bit > > pseudo colour. I think I can create a patch for yaboot-installer (to > > also introduce a failsafe option on an installed system), but I have > > no clue what files are involved in the creation of the ISOs. If you > > can point me in the right direction then I can take (a rather > > uneducated) look at them and see if I can come up with the necessary > > changes myself. Of course this all depends on getting the PowerPC > > kernel changed, something that I have struggled to do in the past. > > Like yourself they are very cautious about changes. I would need help > > from somebody within Canonical to support the kernel change. These > > changes would not improve the out-of-the box everything working 100% > > on the first boot support of the PowerPC port (that can only come from > > the kernel/radeon/nouveau developers), but the creation of a failsafe > > mode would make the radeon and nvidia user experience much better. > > To be honest, as I think I said before: I'm not going to touch these > options at all without review from the kernel and X teams (CCed). If > they say it's necessary, then sure; but I would rather that somebody > first checked whether this is a consequence of a bug we can fix, because > it's always better for the software to work by default than to require > boot parameters. > > Regards, > > -- > Colin Watson [cjwatson@ubuntu.com] Hi Colin, * I am keen too to get proper fixes and that is why bugs have been raised against all the appropriate packages.* However, a lot of the problems are long term ones, for example https://bugs.launchpad.net/ubuntu/+source/linux/+bug/725580*.* Some though are recent e.g. https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1058641*.**The problems are not PowerPC specific, but the difference is non-PowerPC hardware has better fallback options, for example the vesa or proprietary drivers.* Neither of these things are available on PowerPC.* My proposal is just to create a*useable*fallback option, something that isn't automatically available at the moment on PowerPC for some nouveau users. * I'm coming from this as a radeon user, which as you know has its problems in 12.10 - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1040526*.* As I've explained before, the current PowerPC kernel setup (radeonfb built in) doesn't allow radeon KMS to function and there is no getting around that other than disabling radeonfb.* I've tried to have this confirmed for you in this bug*https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1058753*. * The obvious solution is to*remove radeonfb from the kernel.* If we do this then radeon KMS will be used by default.* However,*if for whatever reason*KMS doesn't work for a user and they have to use 'nomodeset' then the fallback*will be*the fbdev driver with the openfirmare framebuffer.* This is currently the case for nouveau users.* The openfirmware framebuffer in many cases is limited to just 16 colours.* This is demonstrated in pictures linked on this nouveau bug report https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1061790*.* The only way to get*more colours (and a useable desktop)*is to use a legacy framebuffer - radeonfb, but we've removed this to enable KMS.* It is a classic catch 22. * That is why I suggest the best option for radeon maybe to keep radeonfb built in and just change the boot parameters/options.* If you're creating a fallback option for radeon, then you might as well do the same for nouveau (which would need rivafb and nvidiafb building back in).* * To be honest I was happy just to have radeonfb removed since I don't*like PowerPC having a different setup to the other architectures.* I see the 16 colour desktop just a limitation of the PowerPC hardware and if users want radeonfb then they can follow the instructions in the PowerPC FAQ to use it as a module on an installed system.* However, lubuntu-qa were talking of failing the live/desktop ISO over the lack of a useable fallback option.* The alternate*was also in danger due to this bug with lightdm https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1044180*.* I don't know if they*intend to continue to do this (I don't agree with it), but*if they do then we*should come up with*better fallback option. * On previous versions of *Ubuntu I believe*you could still use ubiquity in 16 colours.* Now it doesn't even work in 256 colours https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1040544*.* Presumably*the problem*is in whatever widgety thing it uses.* I think you could replicate the problem on non-PowerPC hardware by forcing a 8 bit colour depth.*When*I disable KMS (nomodeset) and use radeonfb I have a 16 bit framebuffer on tty1, but*all the others are 8 bit (including X/fbdev on tty7).* Whatever wizardry vt.handoff=7 does, it makes tty7 the 16 bit framebuffer.**There could indeed be a better way to make X start in a higher colour depth automatically, perhaps this is something ubuntu-x could shed some light on?* As far as I know fbdev takes its colour depth from the framebuffer.* vt.handoff=7 is the part I am least sure about.* When used without a splash screen it gives a horrible corrupt screen early in the boot sequence.* So maybe it shouldn't replace the 'nosplash' option?* I'm only adding vt.handoff=7 to get over the problem with ubiquity, lightdm and network manager that nolonger want to function in an 8 bit depth.*Like I said, up until bug 1058641 I was happy for radeonfb just to be*removed.**This is even though I was responsible for having it put back (along with aty128) into 12.04 - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/949288 .* Incidentally, can I ask the kernel people*was there a reason why*CONFIG_FB_ATY was missed off.....something I probably should of done that at the time?!* Sorry!* I don't know anything about*Mach64/Rage cards, particularly their current state in 12.10....will they use fbdev too now?* Can ubuntu-x confirm?*Keeping the legacy framebuffers radeonfb, rivafb, nvidiafb in is messy with all the boot parameter changes, I don't particularly like it, but if it is the only way to satisfy lubuntu-qa then it should be done I suppose.**It would be good to get the qa perspecitive on this.* Time is running out for 12.10 and lubuntu-qa need to decide what they want.**Last time I checked debian wheezy (a couple of months ago) they had radeonfb, rivafb and nvidiafb still built in on PowerPC.* I don't know how they get over this disabling KMS though?* They must expect their users to add boot parameters, for example video=ofonly?*I know you must be very busy at this time, so thanks for reading what has turned out to be another long email!*Regards*Adam * -- kernel-team mailing list kernel-team@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kernel-team |
PowerPC bugs
>
> On Thu, Oct 04, 2012 at 01:53:32PM +0100, o jordan wrote: > > Is it too late to get some PowerPC changes into the yaboot options on > > the live/desktop ISOs? > > > > I have an idea to build back in the legacy nvidia framebuffers into > > the PowerPC kernel. Whilst this is a backwards step in many respects, > > it is the only way (I can think of) to get over the 16 colour > > limitation of the openfirmware framebuffer. Currently if you turn off > > kernel modesetting with nouveau (and this it seems is a necessity now > > for many cards of some vintage) you are thrown into a desktop with > > only 16 colours on PowerPC and this is a largely unusuable desktop. > > > > As this kernel change will disable KMS (which we don't want to do for > > every nvidia card) the boot options need updating so that the legacy > > framebuffers are turned off by default: > > > > video=radeonfb:off video=rivafb:off video=nvidiafb:off* > > Since you cannot easily remove default yaboot parameters a new > > 'failsafe' option would need to be created on the desktop ISO without > > these parameters. This could replace the 'nosplash' option. The new > > yaboot parameters would be: nomodeset vt.handoff=7 I know you don't > > think vt.handoff=7 makes any sense with yaboot, but it does actually > > boot you into a higher colour depth than you would without it. This > > solves the problem of the installer windows not appearing in 8 bit > > pseudo colour. I think I can create a patch for yaboot-installer (to > > also introduce a failsafe option on an installed system), but I have > > no clue what files are involved in the creation of the ISOs. If you > > can point me in the right direction then I can take (a rather > > uneducated) look at them and see if I can come up with the necessary > > changes myself. Of course this all depends on getting the PowerPC > > kernel changed, something that I have struggled to do in the past. > > Like yourself they are very cautious about changes. I would need help > > from somebody within Canonical to support the kernel change. These > > changes would not improve the out-of-the box everything working 100% > > on the first boot support of the PowerPC port (that can only come from > > the kernel/radeon/nouveau developers), but the creation of a failsafe > > mode would make the radeon and nvidia user experience much better. > > To be honest, as I think I said before: I'm not going to touch these > options at all without review from the kernel and X teams (CCed). If > they say it's necessary, then sure; but I would rather that somebody > first checked whether this is a consequence of a bug we can fix, because > it's always better for the software to work by default than to require > boot parameters. > > Regards, > > -- > Colin Watson [cjwatson@ubuntu.com] * Thinking about this some more, the KMS option shouldn't be the default option on the live/desktop ISOs.* The crashes/freezes with radeon can take some time to appear.* It is quite conceivable that they could occur in the middle of re-partitioning, which would be bad. * The more you think about, the more appealing the Debian way of doing things is: Just rely on the user to add video=ofonly if they want KMS.* This is basically what the boot message says to do at the moment anyway, although it doesn't explicitly mention KMS. * Adam -- kernel-team mailing list kernel-team@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kernel-team |
PowerPC bugs
[Please could you use line-wrap in your mails? They're very difficult
to read this way in my mail client ...] On Sun, Oct 07, 2012 at 12:38:05PM +0100, o jordan wrote: > I am keen too to get proper fixes and that is why bugs have been > raised against all the appropriate packages. However, a lot of the > problems are long term ones, for example > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/725580 . Some > though are recent e.g. > https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1058641 > . The problems are not PowerPC specific, but the difference is > non-PowerPC hardware has better fallback options, for example the vesa > or proprietary drivers. Neither of these things are available on > PowerPC. My proposal is just to create a useable fallback option, > something that isn't automatically available at the moment on PowerPC > for some nouveau users. I'm sorry. I know you're trying to get this fixed and I'm sympathetic. But I don't want to end up in a position where I break something else as a result, and I'm simply not willing to be held responsible for that since this is not a field I understand well. I'm not asking that you get the kernel or X teams to apply a proper fix, necessarily. All I'm asking is that you get somebody from those teams to ack the proposed changes to the boot menu; that way I can have some confidence that they won't cause some other problem that I have no way to predict. Get a member of the kernel or X teams to sign off on a proposed boot menu change, and I'll apply it. It would help if this could be as brief as possible - while I appreciate that you've gone to a lot of effort to provide many bug references, I'm afraid I simply don't have time to read through lots of bugs on linux and xserver-xorg-*, given that this is not my field and so it takes a lot of energy to understand long back-and-forth threads! The longer the mails, the less likely I am to manage to absorb anything beyond the third paragraph or so, given how much I have to do before the 12.10 release. I think this may go for the other developers in question - you really need to be as concise as you can. I'm afraid I am finding the long e-mails on many different but related subjects frustrating and impossible to absorb properly. > On previous versions of *Ubuntu I believe you could still use ubiquity > in 16 colours. Now it doesn't even work in 256 colours > https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1040544 . > Presumably the problem is in whatever widgety thing it uses. Any problem with this is certainly in some underlying toolkit and should almost certainly not be assigned to ubiquity. > I think you could replicate the problem on non-PowerPC hardware by > forcing a 8 bit colour depth. This would be a good thing for somebody to test directly, then. Cheers, -- Colin Watson [cjwatson@ubuntu.com] -- kernel-team mailing list kernel-team@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kernel-team |
PowerPC bugs
Hi Adam and PPC guys,
I'm going to give you the honest truth. We are now too late to sort the issues out.* I know that some of these bugs go back a long while, some are recent. I cannot see any help in my complaining to SABDFL over what has occurred after the changes after A3.* I propose that PPC follows... (23:14:36) xxxx: That mail's very long and rambling, and doesn't really give me any concise statement of "this is broken; this is how we propose fixing it". (23:15:13) phillw: Thinking about this some more, the KMS option shouldn't be the default option on the live/desktop ISOs.* The crashes/freezes with radeon can take some time to appear.* It is quite conceivable that they could occur in the middle of re-partitioning, which would be bad. (23:15:13) phillw: * (23:15:13) phillw: The more you think about, the more appealing the Debian way of doing things is: Just rely on the user to add video=ofonly if they want KMS.* This is basically what the boot message says to do at the moment anyway, although it doesn't explicitly mention KMS. (23:15:39) phillw: what do you need from Debian for the fix to be proposed? (23:16:28) xxxx: You implied earlier that there was a patch to the driver and/or kernel as an option, not just the command-line change. (23:18:13) phillw: did you read the email? He accepts that he was probably mistaken on a previous fix? (23:18:50) phillw: Like I said, up until bug 1058641 I was happy for radeonfb just to be*removed.**This is even though I was responsible for having it put back (along with aty128) into 12.04 -https://bugs.launchpad.net/ubuntu/+source/linux/+bug/949288*.* Incidentally, can I ask the kernel people*was there a reason why*CONFIG_FB_ATY was missed off.....something I probably should of done that at the time?!* Sorry!* I don't know anything about*Mach64/Rage cards, particularly their current state in 12.10....will they use fbdev too now?* Can ubuntu-x confirm? (23:23:32) xxxx: So, uhm. Reading through that bug, two things jump out. video=ofonly isn't the default, and only when setting this option do things go pear-shaped. (23:24:01) xxxx: The fix for it is, currently, a custom Xorg.conf, or a custom radeonfb command-line. Neither of those can be done automatically for the user in any sane fashion. (23:24:46) xxxx: If real code fixes for this can't be found in time, I think the people really familiar with the issue need to sit down and write some CLEAR release notes we can include for people about how to work around this. (23:26:54) phillw: so, we're pretty screwed? sorry to use that word. If we can get release notes out, I'll support them & then we can look at a fix as a matter of urgency... would that be okay from the guy who is liasion between -release and -kernel? (23:28:18) xxxx: I think release noting is the only sane way forward here, other than fixing the actual bug. We can't be writing out custom X config files for everyone, nor custom framebuffer inits based on the resolution and refresh rate they may want. (23:29:19) phillw: As we are too late to fix the bug, would you object to release notes? (23:29:56) phillw: well, bugs... (23:31:27) xxxx: I don't object to release notes, no. This is what they're for. In this case, though, the instructions for "how to find your video card and write a custom X config" and "how to switch to using framebuffer-only graphics, and configure your kernel command-line appopriately" are a bit long for a release note, so nice, clear, step-by-step instructions on a wiki page would be great, and then a release note that briefly describes the problem and points to said wi (23:33:23) phillw: Oh, do not worry about that! I'm also a wiki person, to get a set of steps in for new people will be clear 1., 2., etc... So, can I ask that you good people get the wiki area up for the release notes? We will go battle on in 13.04 :)* For kernel & -x, the PPC team will be looking for the fix. Thanks for sticking with this arch :) Regards, Phill. On 7 October 2012 22:59, Colin Watson <cjwatson@ubuntu.com> wrote: [Please could you use line-wrap in your mails? *They're very difficult to read this way in my mail client ...] On Sun, Oct 07, 2012 at 12:38:05PM +0100, o jordan wrote: > I am keen too to get proper fixes and that is why bugs have been > raised against all the appropriate packages. *However, a lot of the > problems are long term ones, for example > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/725580 . *Some > though are recent e.g. > https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1058641 > . *The problems are not PowerPC specific, but the difference is > non-PowerPC hardware has better fallback options, for example the vesa > or proprietary drivers. *Neither of these things are available on > PowerPC. *My proposal is just to create a useable fallback option, > something that isn't automatically available at the moment on PowerPC > for some nouveau users. I'm sorry. *I know you're trying to get this fixed and I'm sympathetic. But I don't want to end up in a position where I break something else as a result, and I'm simply not willing to be held responsible for that since this is not a field I understand well. I'm not asking that you get the kernel or X teams to apply a proper fix, necessarily. *All I'm asking is that you get somebody from those teams to ack the proposed changes to the boot menu; that way I can have some confidence that they won't cause some other problem that I have no way to predict. Get a member of the kernel or X teams to sign off on a proposed boot menu change, and I'll apply it. *It would help if this could be as brief as possible - while I appreciate that you've gone to a lot of effort to provide many bug references, I'm afraid I simply don't have time to read through lots of bugs on linux and xserver-xorg-*, given that this is not my field and so it takes a lot of energy to understand long back-and-forth threads! *The longer the mails, the less likely I am to manage to absorb anything beyond the third paragraph or so, given how much I have to do before the 12.10 release. *I think this may go for the other developers in question - you really need to be as concise as you can. I'm afraid I am finding the long e-mails on many different but related subjects frustrating and impossible to absorb properly. > On previous versions of *Ubuntu I believe you could still use ubiquity > in 16 colours. *Now it doesn't even work in 256 colours > https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1040544 . > Presumably the problem is in whatever widgety thing it uses. Any problem with this is certainly in some underlying toolkit and should almost certainly not be assigned to ubiquity. > I think you could replicate the problem on non-PowerPC hardware by > forcing a 8 bit colour depth. This would be a good thing for somebody to test directly, then. Cheers, -- Colin Watson * * * * * * * * * * * * * * * * * * * [cjwatson@ubuntu.com] -- https://wiki.ubuntu.com/phillw -- kernel-team mailing list kernel-team@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kernel-team |
PowerPC bugs
Thank you all for allowing me in on some of the thinking that goes on behind some of these issues. It was a fascinating discussion, and finally I see what you're up against.Â*
Notwithstanding…... I just installed today's PPC Â*build of Â*Lubuntu 12.10 from the live disk on my eMAC - the one with the wildly uncooperative Radeon 9200 graphics card. The result was a normal boot!. No YABOOT arguments Â* were required. I just pressed return after "boot". The live disk itself required a YABOOT command line Â*(Greg's). But the resulting install was fine.Â* Has somebody somewhere been working some magic? Ron Mitchell On 2012-10-07, at 4:21 PM, Phill Whiteside wrote:Hi Adam and PPC guys, I'm going to give you the honest truth. We are now too late to sort the issues out.Â* I know that some of these bugs go back a long while, some are recent. I cannot see any help in my complaining to SABDFL over what has occurred after the changes after A3.Â* I propose that PPC follows... (23:14:36) xxxx: That mail's very long and rambling, and doesn't really give me any concise statement of "this is broken; this is how we propose fixing it". (23:15:13) phillw: Thinking about this some more, the KMS option shouldn't be the default option on the live/desktop ISOs.Â* The crashes/freezes with radeon can take some time to appear.Â* It is quite conceivable that they could occur in the middle of re-partitioning, which would be bad. (23:15:13) phillw: Â* (23:15:13) phillw: The more you think about, the more appealing the Debian way of doing things is: Just rely on the user to add video=ofonly if they want KMS.Â* This is basically what the boot message says to do at the moment anyway, although it doesn't explicitly mention KMS. (23:15:39) phillw: what do you need from Debian for the fix to be proposed? (23:16:28) xxxx: You implied earlier that there was a patch to the driver and/or kernel as an option, not just the command-line change. (23:18:13) phillw: did you read the email? He accepts that he was probably mistaken on a previous fix? (23:18:50) phillw: Like I said, up until bug 1058641 I was happy for radeonfb just to beÂ*removed.Â*Â*This is even though I was responsible for having it put back (along with aty128) into 12.04 -https://bugs.launchpad.net/ubuntu/+source/linux/+bug/949288Â*.Â* Incidentally, can I ask the kernel peopleÂ*was there a reason whyÂ*CONFIG_FB_ATY was missed off.....something I probably should of done that at the time?!Â* Sorry!Â* I don't know anything aboutÂ*Mach64/Rage cards, particularly their current state in 12.10....will they use fbdev too now?Â* Can ubuntu-x confirm? (23:23:32) xxxx: So, uhm. Reading through that bug, two things jump out. video=ofonly isn't the default, and only when setting this option do things go pear-shaped. (23:24:01) xxxx: The fix for it is, currently, a custom Xorg.conf, or a custom radeonfb command-line. Neither of those can be done automatically for the user in any sane fashion. (23:24:46) xxxx: If real code fixes for this can't be found in time, I think the people really familiar with the issue need to sit down and write some CLEAR release notes we can include for people about how to work around this. (23:26:54) phillw: so, we're pretty screwed? sorry to use that word. If we can get release notes out, I'll support them & then we can look at a fix as a matter of urgency... would that be okay from the guy who is liasion between -release and -kernel? (23:28:18) xxxx: I think release noting is the only sane way forward here, other than fixing the actual bug. We can't be writing out custom X config files for everyone, nor custom framebuffer inits based on the resolution and refresh rate they may want. (23:29:19) phillw: As we are too late to fix the bug, would you object to release notes? (23:29:56) phillw: well, bugs... (23:31:27) xxxx: I don't object to release notes, no. This is what they're for. In this case, though, the instructions for "how to find your video card and write a custom X config" and "how to switch to using framebuffer-only graphics, and configure your kernel command-line appopriately" are a bit long for a release note, so nice, clear, step-by-step instructions on a wiki page would be great, and then a release note that briefly describes the problem and points to said wi (23:33:23) phillw: Oh, do not worry about that! I'm also a wiki person, to get a set of steps in for new people will be clear 1., 2., etc... So, can I ask that you good people get the wiki area up for the release notes? We will go battle on in 13.04 :)Â* For kernel & -x, the PPC team will be looking for the fix. Thanks for sticking with this arch :) Regards, Phill. -- kernel-team mailing list kernel-team@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kernel-team |
PowerPC bugs
I must say I have to agree with Colin.* In my case I am fairly sure if he or someone removes the radeonfb my old PowerBook will not boot to a workable live session.* I base that on trying the kernel command line "live video=ofonly", which gives me a great graphic plymouth, but stalls everytime before the live session starts.
I personally will continue to test using the command line "live video=1024x786-32@60" which works for me, and I will add to my tests what command line I used, but I will not fail the test if i can get a live working session with decent graphics and complete the installation. I understand that having to make kernel command is not the desired process , but as i remember before Beta2 and a few days after,* we had to make nomodeset or remove splash on the 12.10 amd64 iso to get a live session if we had nVidia graphics. Basically what I am saying is if I can get a live session working and make an install IT GETS A PASS. I will annotate the qa-tracker and let the wiki dudes know what worked for me. By the way Ron I read your email, and built a dd'ed USB and tested the current daily live 20121007. 'live" or no command freezes in light blue screen with reboot required "live video=ofonly" plymouth scrolling stops and freezes "live video=1024x786-32@60" works here gets decent graphics and a live session with (installablity) Greg nm_geo * -- kernel-team mailing list kernel-team@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kernel-team |
PowerPC bugs
Crap typed too fast
"live video=radeonfb:1024x786-32@60" command that works for me On Sun, Oct 7, 2012 at 7:40 PM, Greg Faith <gregfaith@gmail.com> wrote: I must say I have to agree with Colin.* In my case I am fairly sure if he or someone removes the radeonfb my old PowerBook will not boot to a workable live session.* I base that on trying the kernel command line "live video=ofonly", which gives me a great graphic plymouth, but stalls everytime before the live session starts. I personally will continue to test using the command line "live video=1024x786-32@60" which works for me, and I will add to my tests what command line I used, but I will not fail the test if i can get a live working session with decent graphics and complete the installation. I understand that having to make kernel command is not the desired process , but as i remember before Beta2 and a few days after,* we had to make nomodeset or remove splash on the 12.10 amd64 iso to get a live session if we had nVidia graphics. Basically what I am saying is if I can get a live session working and make an install IT GETS A PASS. I will annotate the qa-tracker and let the wiki dudes know what worked for me. By the way Ron I read your email, and built a dd'ed USB and tested the current daily live 20121007. 'live" or no command freezes in light blue screen with reboot required "live video=ofonly" plymouth scrolling stops and freezes "live video=1024x786-32@60" works here gets decent graphics and a live session with (installablity) Greg nm_geo * -- kernel-team mailing list kernel-team@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kernel-team |
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