After plasma 6.7 upgrade, clicking the HDR Calibration tool causes a system wide freeze. Ctrl+Alt+F1 to F7 does nothing. Magic SysRq key is disabled so I am forced to use the power button to restart.
HDR calibration is attempted for a monitor over HDMI, which connects to Nvidia dGPU. Didn’t see any errors related to ‘nvidia’ in KSystemLog (journalctl).
System Info:
Jun 25 22:32:09 aurora systemd[2317]: Started app-systemsettings@77d839c496a646159a5d6e9d9df09ef0.service - System Settings - System Settings.
Jun 25 22:32:09 aurora systemsettings[23544]: Failed to connect to Bolt manager DBus interface:
Jun 25 22:32:10 aurora systemsettings[23544]: Failed to register with host portal QDBusError(“org.freedesktop.portal.Error.Failed”, "Could not register app>
Jun 25 22:32:21 aurora hdrcalibrator[23625]: Failed to register with host portal QDBusError(“org.freedesktop.portal.Error.Failed”, "Could not register app >
Jun 25 22:32:27 aurora hdrcalibrator[23714]: Failed to register with host portal QDBusError(“org.freedesktop.portal.Error.Failed”, "Could not register app >
Jun 25 22:32:35 aurora hdrcalibrator[23769]: Failed to register with host portal QDBusError(“org.freedesktop.portal.Error.Failed”, "Could not register app >
Jun 25 22:32:35 aurora kwin_wayland[2528]: Libinput: event10 - Newmen Tech.,LTD 2.4G Wireless Mouse: client bug: event processing lagging behind by 25ms, y>
– Boot 2dfdebd9bf534a5793f3d7534726965c –
Removing the wireless mouse as mentioned in the last line fixes the issue, not sure how these two correlate with each other!
A wild guess; the windows manager is also monitoring input devices.
If the mouse is not working well the window manager may hang and stop updating t(e screen.
But that is just a guess.