Created attachment 159319 [details] low resolution on 2º screen SUMMARY When turning on/restarting/suspending one of the screens returns with low resolution (640x480). This behavior is random (it doesn't always happen). I have two HP V206hz monitors that have a maximum resolution of 1600x900x60hz and are connected to a Radeon RX 6600 via cable (displayport > DVI). Wayland does not allow resolution change (attachment). NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports Search bugs on google https://forums.gentoo.org/viewtopic-p-8782847.html?sid=709763f992be9f655473ea850ef7b784 The dmesg and xorg.0.log files https://pastebin.com/u/anarcochip/1/znbvbyhU STEPS TO REPRODUCE 1. Turn on, restart, or suspend your computer. 2. Power on, restart, or wait for the hibernation process to complete (front panel LED flashes). 3. Wait for the login screen or press any key to wake up the computer. OBSERVED RESULT One of the screens returns with a resolution of 640x480. In some moments the screen with low resolution changes the color scale to 16bits (I suppose), in these moments, sometimes the screen changes and goes black, but it remains "on" (the monitor's led does not blink). This behavior is random (doesn't always happen) and happens randomly on both monitors, sometimes the 1st sometimes the 2nd. Sometimes restarting resolves the issue. EXPECTED RESULT Both screens turn on with resolution set to 1600x900x60hz. SOFTWARE/OS VERSIONS Windows: This behavior is not observed on win11 system macOS: Not tested Linux/KDE Plasma: Kubuntu 23.04 KDE Plasma Version: 5.27.4 KDE Frameworks Version: 5.104.0 Qt Version: 5.15.8 ADDITIONAL INFORMATION I noticed that kwin related issues were not answered on Ubuntu's bugs.launchpad.net so I decided to move to Kubuntu-23.04 which wants to support multi-screem
Created attachment 159335 [details] K-23.04-Xorg.0.log-after-crash
Created attachment 159336 [details] K-23.04-dmesg-after-crash
Created attachment 159337 [details] printscreen-after-crash
Hello everybody! Is it possible to set the resolution manually?
Yes, in System Settings > Display and Monitor
(In reply to Nate Graham from comment #5) > Yes, in System Settings > Display and Monitor Hi thanks, I change the setting in System Settings > Display & Monitor but it changes randomly... so how can I change it so it doesn't change after any event (reboot, sleep etc)? Any config file that I can edit, any parameters, ...?