https://bugs.kde.org/show_bug.cgi?id=359743
--- Comment #3 from Martin Steigerwald <mar...@lichtvoll.de> --- Thomas kwin_x11 --replace didn´t get the session back. Not even killing kwin (SIGKILL was needed if I remember correctly) and starting it with dbus-launch + export $DISPLAY from other terminal. I think I have seen without and with locked sessions. But I can try this. For today working at homeoffice I prefer stable operation tough. Martin, what I now see without DRI 3 enabled but with GLX + OpenGL 3.1 on both session is this: When I switch from one session to another one after the time where powermanagement usually kicks in the following happens: 1) It shows the session as it. 2) It fades it to black. 3) It fades it back to normal brightness. But, with DRI3 enabled and the issue happened, it stayed black. AFAIR remember it (=whatever does it) showed the session for a short time after switching and then switched it to black. Also with DRI3 enabled I also had black sessions when both powerdevil and kscreen services were disabled (that is all in the original report). That said, maybe X.org itself blanked the display. So the only thing I currently have: DRI 3 + GLX backend with OpenGL 3.1 => blanked session at some time. These are the only factors I could determine for sure at the moment. Whether powerdevil and kscreen services running or not, or kernel 4.4 oder kernel 4.5-rc4 or self-compiled KF5 or packaged KF5 all made no difference. -- You are receiving this mail because: You are watching all bug changes.
