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.
Created attachment 7501 [details] The working configuration file
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.
CC: (none) => mageia
CC: (none) => lmenut, marja11Assignee: bugsquad => mageia
Assignee: mageia => kde
CC: lmenut => (none)
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) => WONTFIXStatus: NEW => RESOLVED