Bug 17830

Summary:	Dual screens are black after disabled one and enabled it again
Product:	Mageia	Reporter:	papoteur <yvesbrungard>
Component:	RPM Packages	Assignee:	KDE maintainers <kde>
Status:	RESOLVED WONTFIX	QA Contact:
Severity:	major
Priority:	Normal	CC:	mageia, marja11
Version:	5
Target Milestone:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Source RPM:	kscreen-1.0.71-3.mga5	CVE:
Status comment:
Attachments:	The working configuration file The corrupted configuration file

Description papoteur 2016-02-27 19:44:54 CET

I have two screens, one of the laptop and the second one connected through HDMI cable. Both are 1920 x 1080 resolution.
Symptoms:
I connect the external monitor, then choose in the kscreen applet to the external screen to extend the first one at left.
When I go away, I use the same applet to disabled the external monitor, then disconnect it.
When I reconnect it, the two screen come black. The applications are still running.

In fact, a file for the second screen in .kde4/share/apps/kscreen/ is written and is corrupted. When I replace it with a good one, all is OK.

I have added some comments on a bug report about KDE, but there is no activity on it.
https://bugs.kde.org/show_bug.cgi?id=359602
I will give the two versions of the configuration file.

Comment 1 papoteur 2016-02-27 19:46:41 CET

Created attachment 7501 [details]
The working configuration file

Comment 2 papoteur 2016-02-27 19:48:39 CET

Created attachment 7502 [details]
The corrupted configuration file

This one is written when the first one exists and when I disabled the screen in kscreen.

papoteur 2016-02-27 19:49:16 CET

CC: (none) => mageia

Marja Van Waes 2016-02-29 09:00:52 CET

CC: (none) => lmenut, marja11
Assignee: bugsquad => mageia

Samuel Verschelde 2016-08-25 16:22:55 CEST

Assignee: mageia => kde

Luc Menut 2016-08-25 16:42:30 CEST

CC: lmenut => (none)

Comment 3 papoteur 2017-08-28 20:57:58 CEST

I found the solution/workaround by stopping to command the disconnection, and to withdraw directly the plug.
Sometimes, I have to tick on the kscreen applet. 
Thus closing.

Resolution: (none) => WONTFIX
Status: NEW => RESOLVED