Bug 189544

Created attachment 128068 [details]
xorg conf file

Disabling the composite extension does not appear to affect this problem

Disabling composite does fix the problem with the vt console characters
disappearing.

One bug report (In reply to comment #0)
> Description of problem:
> 1. When X is running and you switch to vt1, characters disappear
> 2. glxinfo reports up supported GL modes
> 3. ppracer runs VERY slow

File individual bug reports for each issue when filing bugs in bugzilla,
as we only accept one bug per bug report.


> 2. enabled composite support


> 3.
>   
> Actual results:
>  glxgears
> libGL warning: 3D driver claims to not support visual 0x4b
> libGL warning: 3D driver claims to not support visual 0x23
> libGL warning: 3D driver claims to not support visual 0x25
> libGL warning: 3D driver claims to not support visual 0x27
> libGL warning: 3D driver claims to not support visual 0x29
> libGL warning: 3D driver claims to not support visual 0x2b
> libGL warning: 3D driver claims to not support visual 0x2d
> libGL warning: 3D driver claims to not support visual 0x2f
> libGL warning: 3D driver claims to not support visual 0x31
> 
> ppracer runs 9-10fps at 800x600x32 
> 
> Expected results:
> glxgears should not show any unsupported visuals
> 
> ppracer should be in the 40-50fps range minimal with this card and driver
> 
> Additional info:
> Did not have these problems with FC5.

Composite support is experimental.

Please report this issue to X.Org developers by filing a bug report in
the X.Org bugzilla located at http://bugs.freedesktop.org in the "xorg"
component.

Once you've filed your bug report to X.Org, if you paste the new
bug URL here, Red Hat will continue to track the issue in the
centralized X.Org bug tracker, and will review any bug fixes that
become available for consideration in future updates.

Setting status to "NEEDINFO_REPORTER", awaiting X.Org bug URL
for tracking.

Some additional information on this bug

1. Composite support works better with later drivers.
   Version 1.6.1 of the intel driver is out now. The current modeset version of
the driver in rawhide works very poorly on my machine

XOrg bug on this is https://bugs.freedesktop.org/show_bug.cgi?id=6942 and
another rawhide bug is at
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=198062

2. 3-d performance is being worked on by the Xorg/Mesa Team. Was unable to find
a bug so the following bug was opened
https://bugs.freedesktop.org/show_bug.cgi?id=7654

Same prbelm here with unsupported visuals.

I have the 855GM chipset, which is a bit older and seems to use i810_dri.so
instead of i915_dri.so as Mesa driver.

Strangely enought, glxgears work quite ok (haven't tried before to compare fps),
but ppracer is flickering and is imposible to play.

compiz, of course, refuses to run with the following messages:

libGL warning: 3D driver claims to not support visual 0x4b
...skipping...
libGL warning: 3D driver claims to not support visual 0x31
compiz: No stencil buffer. Clipping of transformed windows is not going to be
correct when screen is transformed.

In various forums on the internet there are posts that this problem is a Mesa
bug and is fixed in CVS. I don't know if they have released it somehow, but
maybe rpms in rawhide can be updated?

Currently, 3D stuff is unusable for all i810 users.

With Intel Corporation 82852/855GM Integrated Graphics 
xorg-x11-drv-i810-1.6.5-9.fc6
mesa-libGL-6.5.1-7.fc6

ppracer runs fine, I cannot reproduce the vt1 character disapearing,
even with composite.

There is only one visual unsupported by libGL:

glxgears
libGL warning: 3D driver claims to not support visual 0x4b

Maybe this bug could be closed?

Even that message should be gone in new Mesa builds.

Marking as fixed in rawhide; please reopen if this still occurs for you.