Bug 244451

Summary:	X freezes during KDE4 windows effects (icon expanding)
Product:	[Plasma] kwin	Reporter:	Yuri <yuri>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Unlisted Binaries
OS:	FreeBSD
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Yuri 2010-07-13 04:17:34 UTC

Version:           4.2.4 (using KDE 4.4.4) 
OS:                FreeBSD

Version is actually 4.4.5 on FreeBSD.

I run KDE4 with nvidia 9400GT card with the latest NVidia closed source driver. KDE4 desktop effects are on, so when window comes back from the icon it goes through some motion slowly blowing out from the icon.

Very rarely, but screen freezes during such motion. Mouse still moves, window that was blowing out of the icon stays in the shape of curved triangle. Keyboard is frozen, Ctrl-Alt-FN doesn't switch to black terminal. I can only connect to the host from outside and kill the unfortunate X-client that caused the hang. After this it works just fine again.


Reproducible: Sometimes

Steps to Reproduce:
Intermittent during normal windows manipulations.

Comment 1 Martin Flöser 2010-08-07 08:13:32 UTC

what is the "blowing out" effect? Can you still disable compositing with alt+shift+f12?

Comment 2 Yuri 2010-08-07 19:00:36 UTC

What I called "blowing out effect" is when the window transforms from the icon into the full window, slowly changing shape.

Will try alt+shift+f12 next time when I can reproduce this situation.

Comment 3 Thomas Lübking 2010-08-07 19:27:06 UTC

... what Martin (likely) meant was:
what effect plugin: "minimize", "scale in" or "magic lamp"

"scale in" would only apply to some systray icons and i guess you were talking about "magic lamp", ie. the window geometry is intermediately NOT rectangular - please check whether this plugin is active nevertheless.

Does the effect point the taskbar (iff any) at such occasions?

Comment 4 Yuri 2010-08-08 06:50:17 UTC

Yes, I am talking about the "magic lamp". And this plugin is of course active.

> Does the effect point the taskbar (iff any) at such occasions?
I think so, but I will observe the next time this happens.

But it didn't happen for a while now.

Comment 5 Martin Flöser 2012-04-08 20:42:49 UTC

I assume this has been an NVIDIA issue.