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).
https://bugs.freedesktop.org/show_bug.cgi?id=28331
--- Comment #1 from Gildas Le Nadan 3ntr0p13@gmail.com 2010-05-31 08:46:24 PDT --- Created an attachment (id=35973) --> (https://bugs.freedesktop.org/attachment.cgi?id=35973) dmesg
https://bugs.freedesktop.org/show_bug.cgi?id=28331
--- Comment #2 from Alex Deucher agd5f@yahoo.com 2010-06-01 22:14:15 PDT --- Can you dump the following regs using avivotool in both kms and ums? You can get avivotool here: http://cgit.freedesktop.org/~airlied/radeontool/ and most distros package it. e.g., avivotool regmatch 0x0400 >> kms.out avivotool regmatch 0x0404 >> kms.out avivotool regmatch 0x0430 >> kms.out avivotool regmatch 0x0438 >> kms.out avivotool regmatch 0x043c >> kms.out avivotool regmatch 0x0450 >> kms.out avivotool regmatch 0x0410 >> kms.out avivotool regmatch 0x0414 >> kms.out avivotool regmatch 0x0434 >> kms.out avivotool regmatch 0x0440 >> kms.out avivotool regmatch 0x0444 >> kms.out avivotool regmatch 0x0454 >> kms.out
https://bugs.freedesktop.org/show_bug.cgi?id=28331
Alex Deucher agd5f@yahoo.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Attachment #35972|text/x-log |text/plain mime type| | Attachment #35972|0 |1 is patch| |
https://bugs.freedesktop.org/show_bug.cgi?id=28331
--- Comment #3 from Gildas Le Nadan 3ntr0p13@gmail.com 2010-06-02 03:30:59 PDT --- Created an attachment (id=36005) --> (https://bugs.freedesktop.org/attachment.cgi?id=36005) avivotool dumps with kms
https://bugs.freedesktop.org/show_bug.cgi?id=28331
--- Comment #4 from Gildas Le Nadan 3ntr0p13@gmail.com 2010-06-02 03:34:28 PDT --- Created an attachment (id=36006) --> (https://bugs.freedesktop.org/attachment.cgi?id=36006) avivotool dumps with ums (v2.6.34 radeon.modeset=0)
https://bugs.freedesktop.org/show_bug.cgi?id=28331
Gildas Le Nadan 3ntr0p13@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Attachment #36005|avivotool dumps with kms |avivotool dumps with kms description| |(v2.6.34) Attachment #36005|application/octet-stream |text/plain mime type| |
https://bugs.freedesktop.org/show_bug.cgi?id=28331
Gildas Le Nadan 3ntr0p13@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Attachment #36006|application/octet-stream |text/plain mime type| |
https://bugs.freedesktop.org/show_bug.cgi?id=28331
--- Comment #5 from Alex Deucher agd5f@yahoo.com 2010-06-08 14:44:01 PDT --- Created an attachment (id=36167) View: https://bugs.freedesktop.org/attachment.cgi?id=36167 Review: https://bugs.freedesktop.org/review?bug=28331&attachment=36167
possible fix
Does this drm kernel patch help?
https://bugs.freedesktop.org/show_bug.cgi?id=28331
--- Comment #6 from Gildas Le Nadan 3ntr0p13@gmail.com 2010-06-08 16:36:50 PDT --- Thanks Alex: I applied the patch on top of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git and it seems to fix the "flicker all the time issue" for me.
https://bugs.freedesktop.org/show_bug.cgi?id=28331
Alex Deucher agd5f@yahoo.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED
--- Comment #7 from Alex Deucher agd5f@yahoo.com 2010-06-08 16:45:15 PDT --- I've sent it to Dave for inclusion in the kernel.
dri-devel@lists.freedesktop.org
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