https://bugs.freedesktop.org/show_bug.cgi?id=28331
Summary: screen flickers all the time with desktop image appearing only briefly Product: DRI Version: unspecified Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: critical Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: 3ntr0p13@gmail.com
Created an attachment (id=35972) --> (https://bugs.freedesktop.org/attachment.cgi?id=35972) Xorg.0.log
Machine is an Acer Aspire L5100 with an AMD Athlon 64 X2 Dual Core Processor 4000+ running a 64 bits debian sid.
The machine is a small factor desktop machine designed around laptop components, so the graphic card is an integrated radeon x1200.
When running a linux vanilla kernel 2.6.34, the screen flickers all the time making the machine unusable, while with kernel 2.6.33 such "flick to black" event occured from time to time but most of the time the desktop was correctly displayed.
radeon.new_pll=0 doesn't solve the problem radeon.nomodeset=0 does
The problem was bisected to commit 383be5d1789d9a7a2e77dca1cb0aca89507d069e
The following packages version are installed: xserver-xorg 1:7.5+6 xserver-xorg-core 2:1.7.7-1 xserver-xorg-video-radeon 1:6.13.0-2
Please find attached Xorg.0.log and dmesg for that machine (when booted on 2.6.34 with no radeon option).