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Old 12-04-2007, 05:12 PM
Richard Emberson
 
Default Fedora Sound - working as root

As a user I got the following while running xmms:

]$ xmms

** WARNING **: Failed to open font: "-adobe-helvetica-bold-r-*-*-10-*".

** WARNING **: alsa_get_mixer(): Attaching to mixer hw:0 failed: No such
device
Message: alsa_setup(): Cannot set mmap'ed mode: Invalid argument.
falling back to direct write

*** PULSEAUDIO: Unable to create stream.

** WARNING **: alsa_setup(): Unable to install hw params
xmms: pcm_pulse.c:115: pulse_stop: Assertion `pcm->stream' failed.
Aborted

As root, if I disable mmap mode it works.
As a user (disabling mmap mode) it still does not work.

First, what is mmap mode and is disabling it ok?
Next, seems like a permission problem. What do I have the
change the permissions of to get xmms to work with an
ordinary user using Fedora 8?

Thanks

Richard
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Old 12-04-2007, 06:08 PM
Kyle McMartin
 
Default Fedora Sound - working as root

On Tue, Dec 04, 2007 at 10:12:46AM -0800, Richard Emberson wrote:
> First, what is mmap mode and is disabling it ok?
> Next, seems like a permission problem. What do I have the
> change the permissions of to get xmms to work with an
> ordinary user using Fedora 8?
>

are you using a custom built kernel, or one shipped with fedora 8?

uname -a please.

cheers, Kyle

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Old 12-04-2007, 09:33 PM
kwhiskerz
 
Default Fedora Sound - working as root

Since the last spate of updates, it is no longer possible to use any sound or
video* device as user, only as root. Changing the permission to 666 allows
users to use the devices. I saw that on the pulseaudio thread on
fedora-selinux-list.

I hope there will be a fix soon. In the meantime, I manually change the
permission of the device I need to use each time I boot the system. Sometimes
it's not easy to figure out what device you need, though, like with the tv
card or midi, for example.

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Old 12-05-2007, 02:11 AM
"yonas Abraham"
 
Default Fedora Sound - working as root

On Dec 4, 2007 1:12 PM, Richard Emberson <remberson@edgedynamics.com> wrote:
>
> As a user I got the following while running xmms:
>
> ]$ xmms
>
> ** WARNING **: Failed to open font: "-adobe-helvetica-bold-r-*-*-10-*".
>
> ** WARNING **: alsa_get_mixer(): Attaching to mixer hw:0 failed: No such
> device
> Message: alsa_setup(): Cannot set mmap'ed mode: Invalid argument.
> falling back to direct write
> *** PULSEAUDIO: Unable to create stream.
>
> ** WARNING **: alsa_setup(): Unable to install hw params
> xmms: pcm_pulse.c:115: pulse_stop: Assertion `pcm->stream' failed.
> Aborted

The same here. THis machine is up2dated F8 system. It is yum upgraded
to F8 from F7.

/Yonas

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Old 12-05-2007, 12:53 PM
Richard Emberson
 
Default Fedora Sound - working as root

Kyle McMartin wrote:

On Tue, Dec 04, 2007 at 10:12:46AM -0800, Richard Emberson wrote:

First, what is mmap mode and is disabling it ok?
Next, seems like a permission problem. What do I have the
change the permissions of to get xmms to work with an
ordinary user using Fedora 8?



are you using a custom built kernel, or one shipped with fedora 8?

uname -a please.

cheers, Kyle



~]$ uname -a
Linux gate 2.6.23.8-63.fc8 #1 SMP Wed Nov 21 18:51:08 EST 2007 i686 i686
i386 GNU/Linux



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Old 12-05-2007, 01:07 PM
"ishii kazuo"
 
Default Fedora Sound - working as root

2007/12/5, Richard Emberson <remberson@edgedynamics.com>:
> Kyle McMartin wrote:
> > On Tue, Dec 04, 2007 at 10:12:46AM -0800, Richard Emberson wrote:
> >> First, what is mmap mode and is disabling it ok?
> >> Next, seems like a permission problem. What do I have the
> >> change the permissions of to get xmms to work with an
> >> ordinary user using Fedora 8?
> >>
> >
> > are you using a custom built kernel, or one shipped with fedora 8?
> >
> > uname -a please.
> >
> > cheers, Kyle
> >
>
> ~]$ uname -a
> Linux gate 2.6.23.8-63.fc8 #1 SMP Wed Nov 21 18:51:08 EST 2007 i686 i686
> i386 GNU/Linux
>
>
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> Quis custodiet ipsos custodes:
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> may contain confidential information. Any unauthorized review, use,
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> copies of the original message.
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Old 12-05-2007, 02:46 PM
Rex Dieter
 
Default Fedora Sound - working as root

kwhiskerz wrote:

> Since the last spate of updates, it is no longer possible to use any sound
> or video* device as user, only as root. Changing the permission to 666
> allows users to use the devices. I saw that on the pulseaudio thread on
> fedora-selinux-list.

ditto, confirmed, me too, all that jazz.

Anyone bugzilla this yet? If so, got any pointers or references? I've got
one that's filed against kde, but I'm thinking this really has nothing to
do with kde (since I don't have audio in gnome either):
http://bugzilla.redhat.com/411071

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Old 12-05-2007, 05:44 PM
kwhiskerz
 
Default Fedora Sound - working as root

I finally filed a bug report. Thanks, Rex, for the suggestion.

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Old 12-05-2007, 06:05 PM
Rex Dieter
 
Default Fedora Sound - working as root

kwhiskerz wrote:

> I finally filed a bug report. Thanks, Rex, for the suggestion.

It's likely this:
http://bugzilla.redhat.com/380031

Until properly fixed, the suggested workaround is:
rm -f /var/lib/hal/acl-list
/sbin/service haldaemon restart

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Old 12-05-2007, 07:27 PM
Todd Zullinger
 
Default Fedora Sound - working as root

kwhiskerz wrote:
> Since the last spate of updates, it is no longer possible to use any
> sound or video* device as user, only as root. Changing the
> permission to 666 allows users to use the devices. I saw that on the
> pulseaudio thread on fedora-selinux-list.
>
> I hope there will be a fix soon. In the meantime, I manually change
> the permission of the device I need to use each time I boot the
> system. Sometimes it's not easy to figure out what device you need,
> though, like with the tv card or midi, for example.

It's probably worth mentioning that the permissions for sound and
video devices are now managed by ConsoleKit instead of the older
consolehelper. ConsoleKit uses acl's instead of mucking with the
standard unix perms. So you want to check the acl's of your devices
using the getfacl command. As an example, you should see something
like this for /dev/dsp:

$ getfacl /dev/dsp
getfacl: Removing leading '/' from absolute path names
# file: dev/dsp
# owner: root
# group: root
user::rw-
user:gdm:rw-
user:tmz:rw-
group::rw-
mask::rw-
other::---

Additionally, the ck-list-sessions command is very useful to determine
whether ConsoleKit considers your session to the active session. If
it doesn't, it won't add you to the acl list for sound, video, and
other devices that it manages.

Finally, one bug that could be the cause of this is:
https://bugzilla.redhat.com/show_bug.cgi?id=380031

Another possibility, if you're using updates-testing, is the
pilot-link-0.12.2-9 update (as suggested in bz#411321).

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