I think Fedora Bug 468860 describes the same problem
<https://bugzilla.redhat.com/show_bug.cgi?id=468860>
Description of problem:
using the intel driver in my xorg.conf results in a lack of any
OpenGL output to the screen, glxgears results in a black box
which still spits out the number of frames drawn but unfortunately
fails to put out any image to the screen.
the upstream Bug 18430 is at:
<http://bugs.freedesktop.org/show_bug.cgi?id=18430>
Both reports have tweaks to try to workaround the problem.
Pat
---
On 3/22/09, Tino Keitel <[email protected]> wrote:
> On Fri, Mar 20, 2009 at 10:47:48 -0500, Pat Kane wrote:
>> I am attaching a tarball with Hugo's Xorg.0.log.
>> I took a quick look but I do not see any obvious
>> reason that his OpenGL is not working.
>>
>> The only odd things I see in the attached log are:
>>
>> ...
>> (**) intel(0): Tiling enabled
>> (==) intel(0): VideoRam: 262144 KB
>> (II) intel(0): Attempting memory allocation with tiled buffers.
>> (EE) intel(0): Failed to set tiling on front buffer: rejected by kernel
>> (EE) intel(0): Failed to set tiling on back buffer: rejected by kernel
>> (EE) intel(0): Failed to set tiling on depth buffer: rejected by kernel
>> (II) intel(0): Tiled allocation successful.
>> ...
>
> According to the log files, it is a i945 chip. I also had this kind of
> problem (the above lines in the log and an empty glgears window) with
> i945 and recent versions of the DRM drivers when I tried to get
> something usable out of Intel 2.6.x.
>
> Regards,
> Tino
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>
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