Bug 1129600

Summary:	Gray screen of death when switching programs with alt+tab
Product:	[Fedora] Fedora	Reporter:	niklas.laxstrom
Component:	kde-workspace	Assignee:	Than Ngo <than>
Status:	CLOSED EOL	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	20	CC:	dvratil, extras-orphan, federicoleva, jgrulich, jreznik, kevin, ltinkl, mbriza, niklas.laxstrom, rdieter, rnovacek, ry, smparrish, than
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-06-29 22:03:08 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description niklas.laxstrom 2014-08-13 10:24:37 UTC

First of all, I have no idea which component to choose, so this is most likely not the correct component. Please help.

Description of problem:
Few times a week on average the whole screen turns gray when I do alt+tab. Sometimes it returns to normal state when I do alt+tab few times more, but sometimes it doesn't.

Version-Release number of selected component (if applicable):
Some random versions:
Kernel: 3.15.7-200.fc20.x86_64
KDE: 4.13.3

How reproducible:
Not very often, I estimate less than 1% of all alt+tabs.

Steps to Reproduce:
1. Alt+tab a lot

Additional info:
The only way to restore working system state I have found is to restart X with ctrl+alt+backspace. This inevitably reads to a data loss: in fact I was just writing a long comment on another bugzilla when this happened and lost it. Hence my initial suggestion of high priority.

The applications still seem to be running normally, as I can see mouse cursor changing between normal pointer and text selection cursor. This usually happens when tabbing between Google Chrome and Konsole, but that might just be because that consist of the majority of my program switches.

Hardware is X1 Carbon.

Comment 1 Rex Dieter 2014-08-13 11:48:23 UTC

Symptoms seem to point to a video driver issue.

What video hardware/driver do you use?

fpaste --sysinfo

output should give some clues.

Comment 2 niklas.laxstrom 2014-08-13 15:42:38 UTC

00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
Kernel driver in use: i915

OpenGL renderer string: Mesa DRI Intel(R) Ivybridge Mobile
OpenGL version string: 3.0 Mesa 10.1.5

Comment 3 Fedora End Of Life 2015-05-29 12:37:26 UTC

This message is a reminder that Fedora 20 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
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Comment 4 Fedora End Of Life 2015-06-29 22:03:08 UTC

Fedora 20 changed to end-of-life (EOL) status on 2015-06-23. Fedora 20 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
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