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

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Message-ID: <CAH3drwaBpnicWa=pLnKgxsOb4t4pe_kHsYZW4Ei3q-wKYCA=Rw@mail.gmail.com>
Date:	Fri, 8 Jun 2012 16:43:29 -0400
From:	Jerome Glisse <j.glisse@...il.com>
To:	Brian Gitonga Marete <marete@...hnix.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 4:28 PM, Brian Gitonga Marete <marete@...hnix.com> wrote:
> 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

I uploaded a v3 version same url, the v2 won't work for you. v3 should
work (at least according to my local testing with same gpu as you and
same use case)

Cheers,
Jerome
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