Re: Virtualbox 3D accel broken in xf86-video-nouveau 1.0.3

[Pouar <thepouar-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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On 2012/10/31 17:27, Marcin Slusarz wrote:
> On Tue, Oct 30, 2012 at 01:30:53PM -0500, Pouar wrote:
>>     On 10/30/2012 01:28 PM, Pouar wrote:
>>
>>     On 10/28/2012 01:21 PM, Pouar wrote:
>>
>>     On 10/28/2012 01:18 PM, Emil Velikov wrote:
>>
>>       On Sun, 28 Oct 2012 01:15:54 -0000, Pouar wrote:
>>
>>       there's a regression in the xf86-video-nouveau driver that came up
>>       in
>>       1.0.3 that causes the desktop to bounce around in virtualbox
>>       whenever
>>       using HW acceleration in cinnamon and gnome 3, but not in fallback
>>       or
>>       cinnamon 2d, only happens in virtualbox and not the host, I've
>>       confirmed
>>       it was the graphics driver on the host because it happened with the
>>       1.0.3 driver but not the 1.0.2.
>>       anyone else having this problem? I'm using GeForce GTX 560 Ti
>>
>>       Hi Pouar
>>       Can you open a bug, following these instructions [1]
>>       Ideally you can try bisecting the issue - there are only 10 changes
>>       that may have caused the issue
>>       Cheers
>>       Emil
>>       [1] [1]http://nouveau.freedesktop.org/wiki/Bugs
>>
>>       I just did
>>
>>     --
>>     Pouar
>>
>>       by I just did I meant the bug report, not the bisecting, I have zero
>>       experience with driver programming, much less graphics driver
>>       programming, so I wouldn't know what to look for, I signed up for
>>       this mailing list to keep track of the different driver issues and
>>       bugs and their progress
> You don't need to have any experience in driver programming to bisect this bug.
>
> git clone git://anongit.freedesktop.org/git/nouveau/xf86-video-nouveau/
> cd xf86-video-nouveau/
> ./autogen.sh
> make
>
> If you can compile successfully, do:
>
> 1) git bisect start xf86-video-nouveau-1.0.3 xf86-video-nouveau-1.0.2
> 2) make && sudo rm /usr/lib/xorg/modules/drivers/nouveau_drv.so && sudo cp src/.libs/nouveau_drv.so /usr/lib/xorg/modules/drivers
> 3) Restart X. Try to reproduce the bug.
> 4) If you can't reproduce it - do "git bisect good", if you can - do "git bisect bad".
> 5) Go to 2). After ~4 compiles it will tell you about first bad commit - this
> is what we want to see.
>
> Marcin
Did the bisect today. Here's what I got:

297fd0d0755bda698be1d0b30cc60a41d7673c0b is the first bad commit
commit 297fd0d0755bda698be1d0b30cc60a41d7673c0b
Author: Dave Airlie <airlied-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Date:   Tue Oct 16 16:15:16 2012 +1000

     nouveau/dri2: fix pixmap/window offset calcs.

     This should fix prime rendering under kwin, and not break it under the
     others.

     Signed-off-by: Dave Airlie <airlied-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

:040000 040000 10860842c2d9ff579e3e0b46b1edfc332d40b311 
886ca8b5c05779ee410c6d14575b4805016b71af M    src
-- 
Pouar

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