Bug 514985

Summary:	intel 945 KMS horizontal flipping glitch
Product:	[Fedora] Fedora	Reporter:	Warren Togami <wtogami>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	rawhide	CC:	bnocera, itamar, kernel-maint, notting, xgl-maint
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-08-03 16:36:47 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:
Bug Depends On:
Bug Blocks:	473303

Description Warren Togami 2009-07-31 18:45:16 UTC

http://people.redhat.com/wtogami/temp/intel-945-horz-render-glitch.mov

I noticed during early July while trying a rawhide LiveCD that the display was behaving very strangely like in the above video.  During certain render operations, everything on the screen would "flip" horizontally in an annoying fashion.

* This happens during KMS boot while text flies by, before X has run.
* This happens while X is running.
* It happens continuously if you run gnome-terminal and have text fly by in your terminal.  As long as the text is moving, the entire screen exhibits this glitch.

It is impossible to upgrade my laptop to rawhide while this bug exists.

kernel-2.6.31-0.112.rc4.git3.fc12 (both i686 and x86_64 effected)
xorg-x11-drv-intel-2.8.0-2.fc12
libdrm-2.4.12-0.6.fc12

Comment 1 Warren Togami 2009-07-31 18:47:02 UTC

krh mentioned that the "fifo watermark" work might be related to this.

Comment 2 Bill Nottingham 2009-08-03 16:36:47 UTC


*** This bug has been marked as a duplicate of bug 514106 ***