Ever since Linus merged drm-next, laptop crashes with garbled screen on modeset during boot. I haven't tried to ssh to the laptop yet.
Created attachment 41921 [details]
Picture of the screen
Created attachment 41922 [details]
dmesg from working 2.6.37-12-generic
Created attachment 41923 [details]
Can you bisect?
After countless reboots:
9e46a48df24f9698b34d28385b320c529851e5f7 is the first bad commit
Author: Alex Deucher <email@example.com>
Date: Thu Jan 6 18:49:35 2011 -0500
drm/radeon/kms: add support for gen2 pcie link speeds
Supported on rv6xx/r7xx/evergreen. Cards come up in gen1 mode.
Signed-off-by: Alex Deucher <firstname.lastname@example.org>
Signed-off-by: Dave Airlie <email@example.com>
:040000 040000 55843e87128e6be0103a644d565aa42cadfaa331 7c9afe069f4bc71eb2f815cf3e8fe0a9c96d7be8 M drivers
Created attachment 41939 [details] [review]
add gen2 module option
Seems there may be gen2 compat issues with some motherboards. What chipset is your system? Can you attach the lspci -vnn output?
Created attachment 41940 [details]
Its a second generation HP envy 15. According to google the chipset is PM55.
gen2 patch fixed the problem.