Created attachment 145237 [details] DIsplay settings screenshot SUMMARY I have three monitors connected to my AMD RX 6900 XT. This setup worked fine till yesterday. Yesterday only two of the three monitors were active when the KDE was launched. The third one is visible in Dispay settings (see attached screenshot), but it's not working and shows wrong resolution (1024x768 which can't be changed to native Full HD resolution). The monitor doesn't work even in KDM and the resolution on the other two is messed up (it looks like 640x480 or similar), this is fixed after login, but the third monitor still doesn't work. I tested this on both Wayland and X11. STEPS TO REPRODUCE 1. Start desktop machine 2. Login to KDE OBSERVED RESULT Only two monitors are working EXPECTED RESULT All three monitors are working as they should SOFTWARE/OS VERSIONS Linux/KDE Plasma: Fedora Linux 35 Kinoite (available in About System) KDE Plasma Version: 5.23.4 KDE Frameworks Version: 5.89.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION journalctl output when trying to disable and enable the non working monitor ``` led 08 18:29:07 fedora plasmashell[1751]: requesting unexisting screen -1 led 08 18:29:07 fedora plasmashell[1751]: requesting unexisting screen -1 led 08 18:29:07 fedora plasmashell[1751]: requesting unexisting screen -1 led 08 18:29:07 fedora plasmashell[1751]: requesting unexisting screen -1 led 08 18:29:07 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:07 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:07 fedora plasmashell[1751]: trying to show an empty dialog led 08 18:29:07 fedora plasmashell[1751]: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:134:19: QML Loader: Binding loop detected for property "height" led 08 18:29:07 fedora plasmashell[1751]: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:134:19: QML Loader: Binding loop detected for property "height" led 08 18:29:07 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:07 fedora plasmashell[1751]: requesting unexisting screen -1 led 08 18:29:07 fedora plasmashell[1751]: requesting unexisting screen -1 led 08 18:29:16 fedora systemsettings5[4113]: kf.coreaddons: KPluginFactory could not load the plugin "/usr/lib64/qt5/plugins/kcms/kcm_kscreen.so" led 08 18:29:18 fedora plasmashell[1751]: trying to show an empty dialog led 08 18:29:18 fedora plasmashell[1751]: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:134:19: QML Loader: Binding loop detected for property "height" led 08 18:29:18 fedora plasmashell[1751]: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:134:19: QML Loader: Binding loop detected for property "height" led 08 18:29:18 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:18 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:18 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: trying to show an empty dialog led 08 18:29:19 fedora plasmashell[1751]: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:134:19: QML Loader: Binding loop detected for property "height" led 08 18:29:19 fedora plasmashell[1751]: file:///usr/share/plasma/shells/org.kde.plasma.desktop/contents/views/Desktop.qml:134:19: QML Loader: Binding loop detected for property "height" led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() led 08 18:29:19 fedora plasmashell[1751]: qt.qpa.wayland: Wayland does not support QWindow::requestActivate() ```
Sounds like a driver issue, did you do updates in between? Also please attach the output of drm_info, can often help with diagnosing such issues
When I found out about the issue I did a rollback to previous ostree image, but the issue persisted. So it doesn't look like this was simply caused by some package update. By drm_info, do you mean output of this app https://github.com/kraxel/drminfo?
That would likely also work but I'm referring to https://github.com/ascent12/drm_info
Created attachment 145428 [details] Output of drm_info
Not sure what happened, but the issue is now gone.