Intel graphics corruption

Intel graphics corruption

[Fennec Fox]

well on my arch machine with an intel gma 4 graphics card using
xfree86-video-intel   im seeing lots of graphics corruption  i can
give images it it would help

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Re: Intel graphics corruption

[Chris Wilson]

On Fri, Dec 05, 2014 at 11:29:09PM -0600, Fennec Fox wrote:
> well on my arch machine with an intel gma 4 graphics card using
> xfree86-video-intel   im seeing lots of graphics corruption  i can
> give images it it would help

I presume you filed https://bugs.freedesktop.org/show_bug.cgi?id=87065
and so know by that this was fixed by

commit 656bfa3afc14e45e2d9e1624bf60d79b3beb12f2
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Nov 20 09:26:30 2014 +0100

    drm/i915: Pin tiled objects for L-shaped configs
    
    Let's just throw in the towel on this one and take the cheap way out.
    
    Based on a patch from Chris Wilson, but checking for a different bit.
    Chris' patch checked for even bank layout, this one here for a magic
    bit. Given the evidence we've gathered (not much) both work I think,
    but checking for the magic bit might be more accurate.
    
    Anyway, works on my gm45 here.
    
    For paranoi restrict to gen4 (and mobile), since we've only ever seen
    this on gm45 and i965gm.
    
    Also add some debugfs output so that we can skip the tiled swapping
    tests properly in these cases.
    
    v2: Clean up the quirk'ed pin count in free_object to avoid upsetting
    the WARN_ON. Spotted by Chris.
-Chris

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Chris Wilson, Intel Open Source Technology Centre
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Re: Intel graphics corruption

[Fennec Fox]

do you know how to make the intel-drm-nightly kernel mentioned in this
bugfix   id like to use that until 3.19 lands

On Mon, Dec 8, 2014 at 2:26 AM, Chris Wilson <chris@chris-wilson.co.uk> wrote:
> On Fri, Dec 05, 2014 at 11:29:09PM -0600, Fennec Fox wrote:
>> well on my arch machine with an intel gma 4 graphics card using
>> xfree86-video-intel   im seeing lots of graphics corruption  i can
>> give images it it would help
>
> I presume you filed https://bugs.freedesktop.org/show_bug.cgi?id=87065
> and so know by that this was fixed by
>
> commit 656bfa3afc14e45e2d9e1624bf60d79b3beb12f2
> Author: Daniel Vetter <daniel.vetter@ffwll.ch>
> Date:   Thu Nov 20 09:26:30 2014 +0100
>
>     drm/i915: Pin tiled objects for L-shaped configs
>
>     Let's just throw in the towel on this one and take the cheap way out.
>
>     Based on a patch from Chris Wilson, but checking for a different bit.
>     Chris' patch checked for even bank layout, this one here for a magic
>     bit. Given the evidence we've gathered (not much) both work I think,
>     but checking for the magic bit might be more accurate.
>
>     Anyway, works on my gm45 here.
>
>     For paranoi restrict to gen4 (and mobile), since we've only ever seen
>     this on gm45 and i965gm.
>
>     Also add some debugfs output so that we can skip the tiled swapping
>     tests properly in these cases.
>
>     v2: Clean up the quirk'ed pin count in free_object to avoid upsetting
>     the WARN_ON. Spotted by Chris.
> -Chris
>
> --
> Chris Wilson, Intel Open Source Technology Centre



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Re: Intel graphics corruption

[Fennec Fox]

by the way im using archlinux on x64

On Mon, Dec 8, 2014 at 9:52 PM, Fennec Fox <fennectech@gmail.com> wrote:
> do you know how to make the intel-drm-nightly kernel mentioned in this
> bugfix   id like to use that until 3.19 lands
>
> On Mon, Dec 8, 2014 at 2:26 AM, Chris Wilson <chris@chris-wilson.co.uk> wrote:
>> On Fri, Dec 05, 2014 at 11:29:09PM -0600, Fennec Fox wrote:
>>> well on my arch machine with an intel gma 4 graphics card using
>>> xfree86-video-intel   im seeing lots of graphics corruption  i can
>>> give images it it would help
>>
>> I presume you filed https://bugs.freedesktop.org/show_bug.cgi?id=87065
>> and so know by that this was fixed by
>>
>> commit 656bfa3afc14e45e2d9e1624bf60d79b3beb12f2
>> Author: Daniel Vetter <daniel.vetter@ffwll.ch>
>> Date:   Thu Nov 20 09:26:30 2014 +0100
>>
>>     drm/i915: Pin tiled objects for L-shaped configs
>>
>>     Let's just throw in the towel on this one and take the cheap way out.
>>
>>     Based on a patch from Chris Wilson, but checking for a different bit.
>>     Chris' patch checked for even bank layout, this one here for a magic
>>     bit. Given the evidence we've gathered (not much) both work I think,
>>     but checking for the magic bit might be more accurate.
>>
>>     Anyway, works on my gm45 here.
>>
>>     For paranoi restrict to gen4 (and mobile), since we've only ever seen
>>     this on gm45 and i965gm.
>>
>>     Also add some debugfs output so that we can skip the tiled swapping
>>     tests properly in these cases.
>>
>>     v2: Clean up the quirk'ed pin count in free_object to avoid upsetting
>>     the WARN_ON. Spotted by Chris.
>> -Chris
>>
>> --
>> Chris Wilson, Intel Open Source Technology Centre
>
>
>
> --
> Fennec



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Re: Intel graphics corruption

[Jani Nikula]

On Tue, 09 Dec 2014, Fennec Fox <fennectech@gmail.com> wrote:
> do you know how to make the intel-drm-nightly kernel mentioned in this
> bugfix   id like to use that until 3.19 lands

It's the drm-intel-nightly branch of the upstream drm intel repository
[1]. The patch seems to apply cleanly on 3.18 too. See [2] for kernel
build instructions.

HTH,
Jani.


[1] http://cgit.freedesktop.org/drm-intel
[2] http://kernelnewbies.org/KernelBuild

>
> On Mon, Dec 8, 2014 at 2:26 AM, Chris Wilson <chris@chris-wilson.co.uk> wrote:
>> On Fri, Dec 05, 2014 at 11:29:09PM -0600, Fennec Fox wrote:
>>> well on my arch machine with an intel gma 4 graphics card using
>>> xfree86-video-intel   im seeing lots of graphics corruption  i can
>>> give images it it would help
>>
>> I presume you filed https://bugs.freedesktop.org/show_bug.cgi?id=87065
>> and so know by that this was fixed by
>>
>> commit 656bfa3afc14e45e2d9e1624bf60d79b3beb12f2
>> Author: Daniel Vetter <daniel.vetter@ffwll.ch>
>> Date:   Thu Nov 20 09:26:30 2014 +0100
>>
>>     drm/i915: Pin tiled objects for L-shaped configs
>>
>>     Let's just throw in the towel on this one and take the cheap way out.
>>
>>     Based on a patch from Chris Wilson, but checking for a different bit.
>>     Chris' patch checked for even bank layout, this one here for a magic
>>     bit. Given the evidence we've gathered (not much) both work I think,
>>     but checking for the magic bit might be more accurate.
>>
>>     Anyway, works on my gm45 here.
>>
>>     For paranoi restrict to gen4 (and mobile), since we've only ever seen
>>     this on gm45 and i965gm.
>>
>>     Also add some debugfs output so that we can skip the tiled swapping
>>     tests properly in these cases.
>>
>>     v2: Clean up the quirk'ed pin count in free_object to avoid upsetting
>>     the WARN_ON. Spotted by Chris.
>> -Chris
>>
>> --
>> Chris Wilson, Intel Open Source Technology Centre
>
>
>
> -- 
> Fennec
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Jani Nikula, Intel Open Source Technology Center
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