Bug 474026

Summary: Greedy MigrationHeuristic + Desktop Effects = widespread corruption
Product: [Fedora] Fedora Reporter: James <james>
Component: xorg-x11-drv-i810Assignee: Adam Jackson <ajax>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 10CC: robert3, xgl-maint
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: xorg-x11-drv-intel-2.7.0-7.fc11.x86_64 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-09-07 21:02:35 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
What I see after enabling Desktop Effects.
none
xorg.conf
none
Xorg.0.log none

Description James 2008-12-01 19:48:36 UTC
Created attachment 325283 [details]
What I see after enabling Desktop Effects.

Description of problem:
I have to set

    Option "MigrationHeuristic" "Greedy"

in xorg.conf (attached) in order to get decent EXA performance out of the intel driver in plain old X. Enabling Desktop Effects leads to a mostly corrupted screen.

Version-Release number of selected component (if applicable):
xorg-x11-drv-i810-2.5.0-3.fc10.x86_64
kernel-2.6.27.7-132.fc10.x86_64

How reproducible:
Always.

Steps to Reproduce:
1. Set MigrationHeuristic to Greedy.
2. Start Desktop Effects.
  
Actual results:
Large parts of the screen garbled or blank.

Expected results:
Desktop bling to die for.

Additional info:
xorg.conf, Xorg.0.log from a typical session, and screenshots attached.

Comment 1 James 2008-12-01 19:49:05 UTC
Created attachment 325284 [details]
xorg.conf

Comment 2 James 2008-12-01 19:49:39 UTC
Created attachment 325285 [details]
Xorg.0.log

Comment 3 James 2009-09-07 21:02:35 UTC
Using F11 now.