https://bugs.kde.org/show_bug.cgi?id=460517
Bug ID: 460517 Summary: Plasma 5.26 completely breaks my multi-monitor setup Classification: Plasma Product: kwin Version: 5.26.0 Platform: Gentoo Packages OS: Linux Status: REPORTED Severity: critical Priority: NOR Component: multi-screen Assignee: kwin-bugs-n...@kde.org Reporter: k...@zaister.de Target Milestone: --- SUMMARY *** After updating to Plasma 5.26 my system now becomes completely unusable after waking up from power save mode, or after switching the monitors that I use for multiple machines back to the KDE machine. Let me describe my screen setup. 1) My main screen is a 4K monitor at 3840×2160 resolution, connected to the DP-0 port. 2) My secondary screen is an HD monitor at 1920×1080 resolution, connected to HDMI-0. 3) My main screen is to the right of the secondary screen. Until Plasma 5.26 this has mostly worked, but with flaws: when the system wakes up or regains control of the monitors, windows on the main screen were moved around a certain distance to the left, overlapping both monitors. Some windows on the main screen that were maximized vertically were resized to the lesser height of the secondary screen. Rather annoying, but more or less workable. Now, with Plasma 5.26 this behavior has been replaced with something even worse. When the system wakes up now, the main monitor is completely deactivated (“NO SIGNAL”), and plasma tries to paint both screens on the secondary monitor. The screens overlap on the secondary monitor, and the screen that is too big scrolls around in the top half of the monitor when I move the mouse pointer. The system is completely unusable after that. By the way, after killing the X-Server and logging in again, the main monitor keeps being deactivated until I manually delete the folder ~/.local/share/kscreen. *** SOFTWARE/OS VERSIONS Linux/KDE Plasma: Plasma KDE Plasma Version: 5.26 KDE Frameworks Version: 5.99 Qt Version: 5.15.5 -- You are receiving this mail because: You are watching all bug changes.