Bug 548938

Summary:	Mouse jumping to top left corner
Product:	[Fedora] Fedora	Reporter:	zakharov
Component:	xorg-x11-drv-mouse	Assignee:	Peter Hutterer <peter.hutterer>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	low
Version:	12	CC:	iny, peter.hutterer, xgl-maint
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-01-20 13:20:22 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:

Description zakharov 2009-12-19 16:18:55 UTC

Description of problem:
From time to time, my mouse jumps to the top left corner. I can use it normally before and after this happens, but it is extremely annoying. It seems to occur mostly when the mouse stood still for a while, but I don't think it happens _only_ then. This seems to be a bug with floating point computation/usage of MMX in X.org, at least that's the conclusion of this bug report, which seems to be the same problem: http://defect.opensolaris.org/bz/show_bug.cgi?id=9862
Can't say whether the workarounds posted in that bug report work, as they seem to be OpenSolaris-specific. I'd be glad to help in any way possible in order to resolve this bug.

Version-Release number of selected component (if applicable):


How reproducible:
Irregular, but constant.

Steps to Reproduce:
1. Use mouse in X.org
2. At some point, it will jump to the top left corner.
  
Actual results:
Mouse jumps to the top left corner.

Expected results:
Stay where it is/move to where I wanted it to move.

Additional info:
This is a pretty standard USB-Wireless Logitech Keyboard/Mouse combo. Evdev made them work automatically in X.org, so it's all pretty default-y.

Comment 1 Fedora Update System 2010-01-05 04:22:22 UTC

xorg-x11-server-1.7.3-8.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/xorg-x11-server-1.7.3-8.fc12

Comment 2 Fedora Update System 2010-01-05 23:01:11 UTC

xorg-x11-server-1.7.3-8.fc12 has been pushed to the Fedora 12 testing repository.  If problems still persist, please make note of it in this bug report.
 If you want to test the update, you can install it with 
 su -c 'yum --enablerepo=updates-testing update xorg-x11-server'.  You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F12/FEDORA-2010-0204

Comment 3 zakharov 2010-01-20 13:20:22 UTC

I am running 1.7.4-3.fc12 now and the problem does not happen anymore. Does anyone have a clue what could have changed? I didn't see any bugfixes in upstream releases that explicitly targeted this bug.