Bug 163734

Summary:	desktop: testing special effects is unreliable
Product:	[Plasma] kwin	Reporter:	Maciej Pilichowski <bluedzins>
Component:	compositing	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED LATER
Severity:	crash
Priority:	NOR
Version:	4.0
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Maciej Pilichowski 2008-06-10 21:30:27 UTC

Version:            (using KDE 4.0.4)
Installed from:    SuSE RPMs

I turned of desktop effects, then turned off all modules, except for two -- thumbnails in the taskbar and desktop grid on app switch. I was asked to check if everything is OK, everything was, the effects didn't work so I thought, maybe they will start after restart.

And now KDE hangs up on start (black screen).

Please, test all modules that user turns on, one by one, if anyone crashes so badly, the changes would be rejected. This is worse than crash really, because user has to figure out how to rescue his/her system (*).

(*) I will appreciate a little help here as well :-)

Comment 1 Christophe Marin 2008-06-11 10:57:49 UTC


*** This bug has been marked as a duplicate of 154637 ***

Comment 2 Maciej Pilichowski 2008-06-11 13:49:03 UTC

Christophe, thanks for the link, indeed those reports are very close together.

But let's keep them separate: the other one is stricly about problems with desktop effects, this one is about _testing_ desktop effects.

So once again: testing has to be redesigned, to test each effect after another, so user could be 100% sure that it won't crash his system for good.

Of course improving special effects, is close, but another story.

Comment 3 Maciej Pilichowski 2008-06-13 22:47:05 UTC

One additional idea -- post-testing. It is not INSTEAD of normal testing, but as an extra one.

user configured everything she/he wanted, fine, tested, fine, restarted computer. On the next KDE run just after starting, the dialog appears:

if you can read this text and you can operate normally type 
YES
and press OK.
timeout: 120 seconds.


If everything is ok, user will type YES, everyone is happy.

If not, after that timeout, KDE should restore previous values, and restart computer again.

This way, user will never be left alone with broken KDE.

Comment 4 Lubos Lunak 2008-06-26 11:53:12 UTC

Your magic patch detecting unexpected problems is welcome.