Bug 31502

Summary: Not possible to use KMS with Radeon 9200 anymore
Product: Drivers Reporter: Zbigniew (zbigniew2011)
Component: Video(DRI - non Intel)Assignee: drivers_video-dri
Status: RESOLVED OBSOLETE    
Severity: normal CC: alan, alexdeucher
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 2.6.38.1 Subsystem:
Regression: Yes Bisected commit-id:
Attachments: Fragment of startup messages

Description Zbigniew 2011-03-20 14:25:06 UTC
Created attachment 51372 [details]
Fragment of startup messages

Any attempt to boot the system with kernel version 2.6.37 (but I've checked, that the problem does occur in earliers 2.6.36.x too) results in total hangup of the system; it's impossible even to escape with "magic sysrq" - only hardware reset button helps. The picture becomes distorted then; a short horizontal dashes are forming kind of broad vertical stripes.

There wasn't such problem using earlier 2.6.34 kernel.

It's still possible to boot such flawed 2.6.37, but only with boot parameter "radeon.modeset=0".

Switched the output to serial console to log some more info - and you'll find it in attachment.
Comment 1 Zbigniew 2011-03-25 19:11:30 UTC
Today compiled newest 2.6.38.1 (the same hardware and distribution) - the problem is still here.
Comment 2 Alex Deucher 2012-08-20 15:12:02 UTC
Is this still an issue with newer kernels?  If so, can you bisect?