Bug 268790

Summary:	Cannot disable desktop effects - Checkbox is inactive. Says effects not available but OTOH active
Product:	[Plasma] kwin	Reporter:	Guido Schmidt <guido>
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Guido Schmidt 2011-03-17 22:29:12 UTC

Version:           1.0 (using KDE 4.6.1) 
OS:                Linux

The "General"-Tab has a warning: "Desktop effects are not available on this system due to the following technical issues:" But no issues are displayed.

The "Enable desktop effects" checkbox is enabled, but inactive.

Composing State: "Desktop effects are active"

The list of effects on the "All Effects"-Tab is empty.

"Advanced"-Tab: Compositing type is set to XRender. Trying to set it to OpenGL failes with the error-message: 

"Failed to activate desktop effects using the given configuration options. Settings will be reverted to their previous values.

Check your X configuration. You may also consider changing advanced options, especially changing the compositing type."

Desktop effects are indeed working.

I remember sometime in the past everything worked normally.

Reproducible: Always




OS: Linux (x86_64) release 2.6.37.1-1.2-desktop
Compiler: gcc
Distribution: OpenSUSE 11.4
Graphics-driver: Nouveau

This bug already existed with
 OpenSUSE 11.3
 KDE 4.5.x
 proprietary NVidia-driver
on the same machine.

Comment 1 Guido Schmidt 2011-03-18 10:57:15 UTC

I found a workaround (mentioned in bug 250865) by setting OpenGLIsUnsafe key to false in ~/.kde/share/config/kwinrc.

So the real bug is saving this key once and forever instead of tying it to the version of the piece of software (graphics-driver?) that caused the error.

Comment 2 Martin Flöser 2011-03-19 10:19:01 UTC


*** This bug has been marked as a duplicate of bug 250865 ***

Comment 3 Martin Flöser 2012-04-13 19:23:46 UTC

Bulk change: move all KWin kcm bugs to product kwin