Hi, has anyone else seen this? Since installing F17 (probably the
first clean fedora install I've done since single digits), I get a
flickering mouse pointer when the system is busy. This might be
related to the fact the mouse pointer hides instantly (no pause) when
stopped over certain window areas (list items seem most common).
Asking partly because I'm not sure what component to report this as a
bug in.
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imalone
http://ibmalone.blogspot.co.uk
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On Thu, 21 Jun 2012 20:45:15 +0100
Ian Malone <ibmalone@gmail.com> wrote:
> Hi, has anyone else seen this? Since installing F17 (probably the
> first clean fedora install I've done since single digits), I get a
> flickering mouse pointer when the system is busy. This might be
> related to the fact the mouse pointer hides instantly (no pause) when
> stopped over certain window areas (list items seem most common).
> Asking partly because I'm not sure what component to report this as a
> bug in.
One cause of that can be mishandling of memory bandwidth and FIFO
settings in the graphics card. My first guess therefore would be to file
it against whichever X server you are using and include the X trace, an
dmesg including a boot with drm.debug=7, an lspci and an lspci -vvxxx (as
root)
Alan
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On 21 June 2012 22:14, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> On Thu, 21 Jun 2012 20:45:15 +0100
> Ian Malone <ibmalone@gmail.com> wrote:
>
>> Hi, has anyone else seen this? Since installing F17 (probably the
>> first clean fedora install I've done since single digits), I get a
>> flickering mouse pointer when the system is busy. This might be
>> related to the fact the mouse pointer hides instantly (no pause) when
>> stopped over certain window areas (list items seem most common).
>> Asking partly because I'm not sure what component to report this as a
>> bug in.
>
> One cause of that can be mishandling of memory bandwidth and FIFO
> settings in the graphics card. My first guess therefore would be to file
> it against whichever X server you are using and include the X trace, an
> dmesg including a boot with drm.debug=7, an lspci and an lspci -vvxxx (as
> root)
>
(oops, should have replied to group)
Thanks, on further investigation it seems coupled to a bug I have with
3.4 kernels not booting without acpi=off, so I might wait and see how
that resolves.
--
imalone
http://ibmalone.blogspot.co.uk
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On Thu, 21 Jun 2012 20:45:15 +0100
Ian Malone <ibmalone@gmail.com> wrote:
Hi, has anyone else seen this? Since installing F17 (probably the
first clean fedora install I've done since single digits), I get a
flickering mouse pointer when the system is busy. This might be
related to the fact the mouse pointer hides instantly (no pause) when
stopped over certain window areas (list items seem most common).
Asking partly because I'm not sure what component to report this as a
bug in.
One cause of that can be mishandling of memory bandwidth and FIFO
settings in the graphics card. My first guess therefore would be to file
it against whichever X server you are using and include the X trace, an
dmesg including a boot with drm.debug=7, an lspci and an lspci -vvxxx (as
root)
This may actually be in the WM, or cause by it. When I was looking for a new WM
for users, I did note this behavior on some and not others. Since I was running
on the same kernel and video driver, it seems to me that either the WM is
actually doing this in areas where it doesn't show the pointer, or that it is
loading an X driver with is causing this. Since I did see this first in a VM,
then on a live fc16 install, using totally different video hardware, it's
unlikely to be just poorly supported hardware.
The OP might try using VNC for access, to see if that provides any useful info.
I do believe the WM is making the cursor vanish when not moving.
--
Bill Davidsen <davidsen@tmr.com>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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On 25 June 2012 16:05, Bill Davidsen <davidsen@tmr.com> wrote:
> Alan Cox wrote:
>>
>> On Thu, 21 Jun 2012 20:45:15 +0100
>> Ian Malone <ibmalone@gmail.com> wrote:
>>
>>> Hi, has anyone else seen this? Since installing F17 (probably the
>>> first clean fedora install I've done since single digits), I get a
>>> flickering mouse pointer when the system is busy. This might be
>>> related to the fact the mouse pointer hides instantly (no pause) when
>>> stopped over certain window areas (list items seem most common).
>>> Asking partly because I'm not sure what component to report this as a
>>> bug in.
>>
>>
>> One cause of that can be mishandling of memory bandwidth and FIFO
>> settings in the graphics card. My first guess therefore would be to file
>> it against whichever X server you are using and include the X trace, an
>> dmesg including a boot with drm.debug=7, an lspci and an lspci -vvxxx (as
>> root)
>>
> This may actually be in the WM, or cause by it. When I was looking for a new
> WM for users, I did note this behavior on some and not others. Since I was
> running on the same kernel and video driver, it seems to me that either the
> WM is actually doing this in areas where it doesn't show the pointer, or
> that it is loading an X driver with is causing this. Since I did see this
> first in a VM, then on a live fc16 install, using totally different video
> hardware, it's unlikely to be just poorly supported hardware.
>
> The OP might try using VNC for access, to see if that provides any useful
> info. I do believe the WM is making the cursor vanish when not moving.
>
I thought the WM too, but it's different between different kernel
versions, which suggests Alan is spot on. However I've also got a
kernel bug ongoing at the minute, so probably sensible to wait until
that's resolved (the kernels with the problem are being booted
acpi=off, which seems unrelated, but you never know).
--
imalone
http://ibmalone.blogspot.co.uk
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heisenpointer (Fedora 17 flickering mouse pointer)
