Bug 583557

Summary:	Enabling desktop effects conflicts with power management: Dark screen
Product:	[openSUSE] openSUSE 11.4	Reporter:	Klaus Kämpf <kkaempf>
Component:	KDE4 Workspace	Assignee:	E-mail List <kde-maintainers>
Status:	VERIFIED WORKSFORME	QA Contact:	E-mail List <qa-bugs>
Severity:	Critical
Priority:	P2 - High	CC:	alinm.elena, coolo, forgotten_vXTZVacoSi, harbrink, jnelson-suse, wstephenson
Version:	Factory	Flags:	coolo: SHIP_STOPPER-
Target Milestone:	Factory
Hardware:	x86-64
OS:	Other
Whiteboard:
Found By:	Development	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Attachments:	powerdevil.notifyrc powerdevilprofilesrc powerdevilrc

Description Klaus Kämpf 2010-02-26 08:54:36 UTC

Scenario: Laptop with 11.3 M2, running on (low) battery.

When power gets plugged in after KDE4 warned about low battery status, the screen goes blank.

Actually, its just the desktop being hidden. The backlight stays on as well as the mouse pointer (which even changes when moved to different parts of the screen).

Un-plugging power gets all windows back.

It seems to be related to 'desktop effects'. Disabling effects in the kde control center is a workaround.


Set to critical since it severely hinders proper operation.

Comment 1 Jon Nelson 2010-03-26 16:26:14 UTC

I'm glad I found this.
I run into this *all the time*.
Since the first version of KDE4.
Now on KDE 4.4 and it's still a problem.

It doesn't happen 100% of the time, but frequently.
Also with openSUSE 11.2!

Hardware: nvidia using the proprietary nvidia driver.
It is 100% related to the compositing.
It can be shut off with alt-shift-f12.
Frequently kwin crashes too, requiring one to run "kwin --replace".
There are a TON of identical or near-identical reports elsewhere, but not in Novell's bugzilla that I can find.

Thus is a huge annoyance, and given the fact that lots of other folks hit this it's not uncommon.

Comment 2 Will Stephenson 2010-04-20 12:15:07 UTC

Klaus, your machine is intel, not nvidia, right?

Please both attach $HOME/.kde4/share/config/powerdevil*rc for me to reproduce.

Comment 3 Klaus Kämpf 2010-04-20 13:04:47 UTC

(In reply to comment #2)
> Klaus, your machine is intel, not nvidia, right?

Right.

> 
> Please both attach $HOME/.kde4/share/config/powerdevil*rc for me to reproduce.

Hmm. I upgraded this machine to M5 meanwhile. Will do when I'm @home.

Comment 4 Klaus Kämpf 2010-04-22 19:35:21 UTC

Created attachment 356320 [details]
powerdevil.notifyrc

Comment 5 Klaus Kämpf 2010-04-22 19:36:00 UTC

Created attachment 356321 [details]
powerdevilprofilesrc

Comment 6 Klaus Kämpf 2010-04-22 19:36:28 UTC

Created attachment 356322 [details]
powerdevilrc

Comment 7 Stephan Kulow 2010-06-17 10:50:41 UTC

any update to this one?

Comment 8 Jon Nelson 2010-06-17 12:27:35 UTC

No change.
I normally don't run with desktop effects due to this issue as it hits me *all the time* and it's a major issue for me.

Every now and again I turn desktop effects on again, and within an hour they are off due to this issue.

I'm on the latest KKFD.

Comment 9 Jon Nelson 2010-06-17 12:31:47 UTC

Possibly related KDE bugs: 
230338
220211
205803
185127

Comment 10 Forgotten User vXTZVacoSi 2011-02-20 19:36:41 UTC

Powerdevil has seen a pretty big rewrite for KDE 4.6 (included in 11.3), could you please give an update on the current status?

I don't think we have the resources to fix this on 11.3 so I'll change to 11.4.

(changed during the 2011-02-20 Open-Bugs-Day about bugs for obsolete versions of openSUSE)

Comment 11 Jon Nelson 2011-02-20 20:32:09 UTC

I am running KR46 and everything seems to behave normally (at least with respect to power management).

Comment 12 Alin M Elena 2012-11-15 21:18:08 UTC

since there is no activity for more than 1y+ and I did not hear anyone else complaining... I will close it... please fill a new one if still happens...


Alin