Bug 27479

Summary: screen flickers/shimmers for half a second from side to side ATI Radeon 2600 HD
Product: xorg Reporter: Bryce Harrington <bryce>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: RESOLVED INVALID QA Contact: Xorg Project Team <xorg-team>
Severity: minor    
Priority: medium CC: christopher.m.penalver, thomaslloyd
Version: 7.5 (2009.10)   
Hardware: x86 (IA32)   
OS: Linux (All)   
See Also: https://launchpad.net/bugs/550141
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
XorgLog.txt
none
CurrentDmesg.txt
none
BootDmesg.txt none

Description Bryce Harrington 2010-04-05 18:54:30 UTC 
Forwarding this bug from Ubuntu reporter TommyBoy:
http://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/550141

[Problem]
Screen flickers/shimmers for half a second from side to side when using notifications, certain compiz effects, using wine, and general desktop usage.  The screen connection also resets or goes black sometimes.

See this video:  http://launchpadlibrarian.net/42260836/flicker.avi

[Original Description]
This can be reproduced using compiz. Please enable the water effect and put in onto a rain delay of 500 (shift+F9). In about 10 seconds you should see the screen dancing around and flickering. Hard to describe. Can't make screen cast as I also have an xorg slowdown issue. 

Compiz is just a method to get this bug to show up again and again. This is also happening when I am using notifications launching wine and other general use of the desktop. 

Also I am hearing a clicking sound from the screen and sometimes getting the message that the screen source disappeared and just reconnected also the screen is going blank sometimes.

DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+3ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-17-generic i686
Architecture: i386
Date: Sun Mar 28 10:30:00 2010
DkmsStatus: Error: [Errno 2] No such file or directory
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-17-generic root=UUID=84de763d-0e1f-4c77-b91a-e32343dae65e ro quiet splash
ProcEnviron:
 LANG=en_GB.utf8SourcePackage: xorg
dmi.bios.date: 01/09/2007
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: NF-MCP61
dmi.chassis.type: 3
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd01/09/2007:svn:pn:pvr:rvn:rnNF-MCP61:rvr:cvn:ct3:cvr:
glxinfo: Error: [Errno 2] No such file or directory
system: codename:           lucid
 architecture:       i686
 kernel:             2.6.32-17-generic
Comment 1 Bryce Harrington 2010-04-05 18:57:51 UTC 
Created attachment 34698 [details]
XorgLog.txt
Comment 2 Bryce Harrington 2010-04-05 18:58:10 UTC 
Created attachment 34699 [details]
CurrentDmesg.txt
Comment 3 Bryce Harrington 2010-04-05 18:58:45 UTC 
Created attachment 34700 [details]
BootDmesg.txt
Comment 4 Tom Lloyd 2010-04-06 01:09:18 UTC 
http://start.ubuntu.com/9.10/
Comment 5 Alex Deucher 2010-04-06 09:07:01 UTC 
This looks like it might be related to the display watermark setup. Does this patch:
http://git.kernel.org/?p=linux/kernel/git/airlied/drm-2.6.git;a=commitdiff;h=f46c01208da1881591e3f55ca77d37f54469f8e4
help?  When you apply the patch please add:
radeon.disp_priority=2 to your kernel command line.
Comment 6 Dragos Delcea 2010-04-12 09:29:57 UTC 
I have seen this since moving from radeonhd to radeon (about 1 year ago).
I'm on a gentoo 32 bit, currently kernel 2.6.32, xorg 1.7.6, radeon git, UMS.
Never used compiz; I have a radeon mobility X1400.

haven't tried the display watermark stuff (don't even know if it applies to UMS).
Comment 7 Alex Deucher 2010-10-19 19:33:35 UTC 
Is this still an issue with KMS or a newer version of the driver?
Comment 8 Christopher M. Penalver 2016-02-25 02:23:29 UTC 
No response from original reporter up/downstream for 6/2 years.

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