Bug 16191 - kernel upgrade breaks 3D-graphics (glxgears is black, sometimes flickers)
Summary: kernel upgrade breaks 3D-graphics (glxgears is black, sometimes flickers)
Status: RESOLVED CODE_FIX
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-06-13 10:27 UTC by florian.a.jung
Modified: 2010-07-30 13:10 UTC (History)
1 user (show)

See Also:
Kernel Version: 2.6.34
Subsystem:
Regression: Yes
Bisected commit-id:

Attachments
output of lspci (1.58 KB, text/plain)
2010-06-13 10:27 UTC, florian.a.jung 		Details
output of glxinfo (4.59 KB, application/octet-stream)
2010-06-13 10:28 UTC, florian.a.jung 		Details
dmesg output (57.92 KB, application/octet-stream)
2010-06-14 17:05 UTC, florian.a.jung 		Details
Xorg.0.log (43.26 KB, text/plain)
2010-06-14 17:07 UTC, florian.a.jung 		Details
Add an attachment (proposed patch, testcase, etc.)

Description florian.a.jung 2010-06-13 10:27:24 UTC 
Created attachment 26749 [details]
output of lspci

After an upgrade to 2.6.34 (2.6.32 also showed that problem) from 2.6.26, 3D stopped working.

glxinfo's output hasn't changed, however glxgears displays a black window, and only sometimes (for example when moving it) i can see flickering gears for a short time.
also other 3D applications are affected

i've a ati radeon mobility m6 LY and i'm using the open source "radeon" driver
it doesn't matter which AGP mode i use, or if i set it to PCI mode.

expected results: working 3d
actual results: black window, flickering gears

I'm using debian lenny and X.Org X Server 1.4.2

steps to reproduce:
  start glxgears.
  enjoy
Comment 1 florian.a.jung 2010-06-13 10:28:16 UTC 
Created attachment 26750 [details]
output of glxinfo
Comment 2 Alex Deucher 2010-06-14 07:15:38 UTC 
Please attach your xorg log and dmesg output.
Comment 3 florian.a.jung 2010-06-14 17:05:41 UTC 
Created attachment 26767 [details]
dmesg output

this is after running glxgears
Comment 4 florian.a.jung 2010-06-14 17:07:04 UTC 
Created attachment 26768 [details]
Xorg.0.log

after running glxgears
Comment 6 florian.a.jung 2010-07-30 13:10:52 UTC 
Thank you, the patch fixed the problem :)
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