I see a lot of repetitive messages in the journalctl output: ноя 26 18:22:29 hp-ved-lfs org.kde.KScreen[311]: kscreen.xcb.helper: RRNotify_OutputProperty (ignored) ноя 26 18:22:29 hp-ved-lfs org.kde.KScreen[311]: kscreen.xcb.helper: Output: 67 ноя 26 18:22:29 hp-ved-lfs org.kde.KScreen[311]: kscreen.xcb.helper: Property: Backlight ноя 26 18:22:29 hp-ved-lfs org.kde.KScreen[311]: kscreen.xcb.helper: State (newValue, Deleted): 0 ноя 26 18:22:29 hp-ved-lfs org.kde.KScreen[311]: kscreen.xcb.helper: RRNotify_OutputProperty (ignored) ноя 26 18:22:29 hp-ved-lfs org.kde.KScreen[311]: kscreen.xcb.helper: Output: 67 ноя 26 18:22:29 hp-ved-lfs org.kde.KScreen[311]: kscreen.xcb.helper: Property: Backlight ноя 26 18:22:29 hp-ved-lfs org.kde.KScreen[311]: kscreen.xcb.helper: State (newValue, Deleted): 0 How to avoid these?
My system is LFS with systemd uname -a Linux hp-ved-lfs 4.8.10 #1 SMP Mon Nov 21 18:53:41 MSK 2016 x86_64 GNU/Linux
Thanks for the report! The messages you see in the system log are needed for us to analyze problems in the screen setup code, so these are useful as they help us to fix problems on users' machines. They're quite easy to disable, you can put the following in the ~/.config/QtProject/qtlogging.ini [Rules] kscreen.*=false And these messages will be gone.
Thanks Sebastian but your solution does not work. My system does not have the ~/.config/QtProject/qtlogging.ini file. I have created one, did reboot, and see no effect. The messages still appears in the journalctl output.
There are instructions here: https://blog.qt.io/blog/2014/03/11/qt-weekly-1-categorized-logging/ It's a local problem that you'll have to take care of yourself.