Bug 274149

Summary:	In browser flash apps leave a "ghost" image on the screen
Product:	[I don't know] kde	Reporter:	davidblunkett <dav1dblunk3tt>
Component:	general	Assignee:	Unassigned bugs mailing-list <unassigned-bugs>
Status:	RESOLVED DOWNSTREAM
Severity:	normal	CC:	cfeck
Priority:	NOR
Version:	4.4
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description davidblunkett 2011-05-25 22:47:42 UTC

Version:           4.4 (using KDE 4.4.4) 
OS:                Linux

flash movies sometimes leave a "ghost" image on the screen that remains after the flash has quit.  This interacts badly with the display - including the flash playing on top of it.

It can be fixed by switching to a text console and back.

Reproducible: Sometimes

Steps to Reproduce:
View a flash movie - strange ghost image is left on screen, appears to XOR with text and window components placed on top of it.  It is persistent even after the flash has gone.

Actual Results:  
View a flash movie - strange ghost image is left on screen, appears to XOR with text and window components placed on top of it.  It is persistent even after the flash has gone.

Expected Results:  
No ghost image

It can't be captured using ksnapshot.

Possibly related to dual head nvidia graphics set up using nvidia driver but definitely only KDE.

The dual head aspect gives odd results - mostly the ghost image is placed where the flash was playing but sometimes it is on the other display.

Comment 1 Christoph Feck 2011-05-25 23:39:28 UTC

Which browser? Firefox? Chromium? Opera?

Comment 2 davidblunkett 2011-05-26 09:15:03 UTC

My apologies - firefox 3.6.17 - this also seems to be related to earlier problems with nvidia drivers vs kernel 2.6.34. I haven't tried with other browsers.

What I know is that earlier versions of kernel 2.6.34 suffered from problems with kde periodically grinding to a halt (there is a long running bug report somewhere). Under k2.6.35 this was fixed and there were no ghosts.  Under later versions of k2.6.34 the periodic freezes appear fixed but the ghost images are present for flash player.

Suse 11.3 appears to be the common factor.

Comment 3 Christoph Feck 2011-05-26 13:55:25 UTC

Thanks for the update. I see nothing that would indicate there is a bug in KDE. Firefox isn't a KDE application to begin with. I would suggest to update to openSUSE 11.4, and if the problem persists, report to openSUSE bug tracker at https://bugzilla.novell.com/ or to the Mozilla Firefox bug tracker at https://bugzilla.mozilla.org/

Comment 4 davidblunkett 2011-07-08 08:21:21 UTC

This appears to be resolved in kde 4.6.0