Bug 904139

Summary:	KDM very dark on "Log Out"
Product:	[openSUSE] openSUSE Distribution	Reporter:	Mark Fairbairn <farcusnz>
Component:	KDE Workspace (Plasma)	Assignee:	E-Mail List <opensuse-kde-bugs>
Status:	RESOLVED FIXED	QA Contact:	E-mail List <qa-bugs>
Severity:	Normal
Priority:	P5 - None	CC:	frerk.meyer
Version:	13.2
Target Milestone:	---
Hardware:	x86-64
OS:	openSUSE 13.2
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Attachments:	KDM on boot and logout

Description Mark Fairbairn 2014-11-06 04:24:04 UTC

Selecting "log out" from KDE menu (KDE 4.14.2) in openSUSE 13.2 system logs out to the KDM screen as it should.
The problem is that the KDM screen is so dark if you are in a well lit room you would think that the system has actually shut down completely.

Entering password to log back in, once plasma work spaces start to load screen brightens.

Comment 1 Mark Fairbairn 2014-11-06 04:25:12 UTC

KDM on system boot is at full brightness so no problem there - problem is only evident on selecting "log out"

Comment 2 Mark Fairbairn 2014-11-11 06:23:13 UTC

see discussion here in openSUSE forums

https://forums.opensuse.org/showthread.php/502162-KDM-very-dark-on-logout

Comment 3 Mark Fairbairn 2014-11-11 06:27:54 UTC

*** Bug 904560 has been marked as a duplicate of this bug. ***

Comment 4 Mark Fairbairn 2014-11-11 06:30:05 UTC

Created attachment 613105 [details]
KDM on boot and logout

On system boot KDM is displayed correctly (full brightness)
However, from within KDE, selecting "Logout" from the KDE menu logs the system out and takes you to aa very dim KDM screen.
Using my system in daylight at first I thought my system had shut down but on closer look could see that there was a KDM screen present but very dimly lit.

sorry - image quality is a bit poor but you can see full contrast on the left from system boot and low contrast on the right after logging out.

Comment 5 Frerk Meyer 2015-02-07 13:41:58 UTC

Same here with:
Name: kdm
Version: 4.11.15-13.20
Arch: x86_64

After logout the screen is as dark as it can get. Hitting keys or using th mouse or clicking with the mouse doesn't change the background brightness.
But as soon as I use the special hotkey on my Lenovo Thinkpad T400s for raising the brightness it is restored to full brightnes instantly.

Comment 6 Mark Fairbairn 2015-02-07 14:42:06 UTC

. . .
> But as soon as I use the special hotkey on my Lenovo Thinkpad T400s for
> raising the brightness it is restored to full brightnes instantly.

oh, yes.
Confirmed I see the same behaviour on a thinkpad SL510

Comment 7 Mark Fairbairn 2015-12-09 03:00:40 UTC

this bug is not present in Leap 42.1

Comment 8 Tomáš Chvátal 2015-12-09 10:07:18 UTC

Ok. Lets consider this fixed by updating to Leap. I really have no clue what could happen there to reset this...