linux-kernel - Re: [Regression] [Radeon] Stream command failures and render problems in Evergreen (Radeon HD 5600) in kernel 3.4

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Date:	Fri, 8 Jun 2012 23:28:10 +0300
From:	Brian Gitonga Marete <marete@...hnix.com>
To:	Jerome Glisse <j.glisse@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	David Airlie <airlied@...ux.ie>,
	Alex Deucher <alexander.deucher@....com>,
	Jerome Glisse <jglisse@...hat.com>
Subject: Re: [Regression] [Radeon] Stream command failures and render problems
 in Evergreen (Radeon HD 5600) in kernel 3.4

On Fri, Jun 8, 2012 at 10:56 PM, Jerome Glisse <j.glisse@...il.com> wrote:
> On Fri, Jun 8, 2012 at 6:13 AM, Brian Gitonga Marete <marete@...hnix.com> wrote:
>> On Fri, Jun 8, 2012 at 12:56 AM, Brian Gitonga Marete
>> <marete@...hnix.com> wrote:
>>> On Fri, Jun 8, 2012 at 12:44 AM, Brian Gitonga Marete
>>> <marete@...hnix.com> wrote:
>>>> On Thu, Jun 7, 2012 at 11:20 PM, Jerome Glisse <j.glisse@...il.com> wrote:
>>>>> On Thu, Jun 7, 2012 at 3:59 PM, Brian Gitonga Marete <marete@...hnix.com> wrote:
>>>>>> On Thu, Jun 7, 2012 at 5:25 PM, Jerome Glisse <j.glisse@...il.com> wrote:
>>>>>>>
>>>>>>> Update your libdrm to libdrm from git should fix your issue.
>>>>>>
>>>>>> Hello Jerome,
>>>>>>
>>>>>> Thanks for looking into this.
>>>>>>
>>>>>> I am afraid that even with the very latest libdrm (git 93a5117d), the
>>>>>> rendering is still broken.
>>>>>>
>>>>>> What else should I try? I would revert the patch that git-bisect
>>>>>> fingered (your patch, git 285484e2d, Linux mainline) but there are
>>>>>> merge problems when I try to do that, which I have not yet looked
>>>>>> into. Perhaps you can see if you can help me revert that patch so that
>>>>>> we can see if the problem then goes away?
>>>>>>
>>>>> What happen if you upgrade to xf86-video-ati from git ?
>>>>
>>>> Hello Jerome,
>>>>
>>>> Once again, thanks a lot for your help.
>>>>
>>>> Some progress but also a setback: Upgrading to the latest
>>>> xf86-video-ati git gets rid of the stream command failures - No more
>>>> error messages in dmesg(8). But then, now, rendering is completely
>>>> messed up. Previously, it was mostly the window boundaries that were
>>>> blurred/messed but now also entire windows and text so that you can't
>>>> read anything from the desktop. (For example, the previous render
>>>> problems would still allow me to use gnome-terminal even though its
>>>> frames were completely blurred. Now the text withing gnome-terminal is
>>>> also blurred/smudged)
>>>>
>>>
>>> I should add that in this case rendering is completely messed up in
>>> _both_ 3.3.x and 3.4. But the stream command failures in 3.4 go away
>>> upon upgrading to the latext xf86-video-ati git HEAD.
>>
>> Ok. All is fixed in kernel v3.4 if I additionally upgrade Mesa to the
>> latest git. Jerome, many thanks for your help on this!
>>
>> So to summarize, the 3.4 breakage in Ubuntu 11.04 (and probably other
>> distributions released around the same time) is fixed by:
>>
>> a) Upgrade libdrm to latest GIT as of this writing (93a5117d5)
>> b) Upgrade xf86-video-ati to latest GIT as of this writing (5888371)
>> c) Upgrade mesa to latest GIT as of this writing (529476b)
>>
>> Now kernel 3.4 works on my laptop.
>>
>> Thanks!
>>
>> BGM.
>
> Brian can you please test patch below on 6.14.0 ddx and old mesa (ie
> revert to ubuntu mesa & ddx) and report if it fix your issue. Thanks
>
> http://people.freedesktop.org/~glisse/0001-drm-radeon-fix-tiling-and-command-stream-checking-on.patch
>
 OK. Will test and report back. Thanks!

-- 
Brian Gitonga Marete
Toshnix Systems - http://toshnix.com
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