Bug 176550

Summary:	Walk through desktops with cover switch causes mouse to disappear
Product:	[Plasma] kwin	Reporter:	Ben Pringle <bayen.praygulin>
Component:	compositing	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED REMIND
Severity:	normal	CC:	finex
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Ben Pringle 2008-11-30 16:51:03 UTC

Version:            (using KDE 4.1.2)
OS:                Linux
Installed from:    Ubuntu Packages

I just upgraded to Kubuntu 8.10 a few days ago, looks quite nice, but when I set "Walk Through Desktops" as a keyboard shortcut with Win+Tab (this is an old windows computer), I started running into a problem.  Whenever I use this shortcut, the mouse pointer disappears!  I can get it back by logging out and logging back in, but it's very annoying.  Also, I can switch desktops normally by clicking on the grid applet on the taskbar, no error, only when I use the shortcut it disappears.

Comment 1 FiNeX 2008-11-30 17:03:53 UTC

I hope to have select a more appropriate compoent.

Comment 2 Martin Flöser 2008-11-30 17:27:42 UTC

Do you have the coverswitch effect enabled? It is default on in Kubuntu. If yes could you please test if the problem is still present if you deactivate this effect?

Comment 3 Ben Pringle 2008-11-30 17:46:28 UTC

(In reply to comment #2)
> Do you have the coverswitch effect enabled? It is default on in Kubuntu. If yes
> could you please test if the problem is still present if you deactivate this
> effect?
> 

I deactivated all effects and tried it, and the bug indeed disappeared!  Also, I managed to get the bug to go away by changing the shortcut to Ctrl+Tab (which works even with effects on.)  Very strange...

Comment 4 lucas 2008-12-15 07:02:23 UTC

I have no idea how this can happen, no code is executed in cover switch during desktop walking. Has Kubuntu modified it or something? I cannot reproduce with either the old or new versions.

Comment 5 Martin Flöser 2008-12-15 14:22:00 UTC

I have an idea. What's your settings in activation tab of KWin settings? Especially your Window Switching settings and focus follows mouse policy.

Nevertheless the bug will be fixed in 4.2 as the mouse is not removed any more when activating coverswitch.