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 10:51:45 -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 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.

Well i still need to find out what's wrong with 6.14.0, what your
screen resolution ?

Cheers,
Jerome
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