Vladislav Dembskiy wrote:
I did install full KDE Plasma on my notebook according to the current
development version of BLS-systemd book. But I have installed the latest
Plasma 5.8.4. Everything is working fine except of one messy issue.
KScreen sends a lot of messages to the system log. Below is short
extraction from journalctl -f
-------------------------------------
ноя 28 20:04:30 hp-ved-lfs org.kde.KScreen[318]: kscreen.xcb.helper:
RRNotify_OutputProperty (ignored)
ноя 28 20:04:30 hp-ved-lfs org.kde.KScreen[318]: kscreen.xcb.helper:
Output: 67
ноя 28 20:04:30 hp-ved-lfs org.kde.KScreen[318]: kscreen.xcb.helper:
Property: Backlight
ноя 28 20:04:30 hp-ved-lfs org.kde.KScreen[318]: kscreen.xcb.helper:
State (newValue, Deleted): 0
ноя 28 20:04:30 hp-ved-lfs org.kde.KScreen[318]: kscreen.xcb.helper:
RRNotify_OutputProperty (ignored)
ноя 28 20:04:30 hp-ved-lfs org.kde.KScreen[318]: kscreen.xcb.helper:
Output: 67
ноя 28 20:04:30 hp-ved-lfs org.kde.KScreen[318]: kscreen.xcb.helper:
Property: Backlight
ноя 28 20:04:30 hp-ved-lfs org.kde.KScreen[318]: kscreen.xcb.helper:
State (newValue, Deleted): 0
---------------------------------------------------------
It happens when screen is dimmed brightness after some inactivity. I
did
reported it to the KDE Bugtracking System – Bug 372961. Please see
https://bugs.kde.org/show_bug.cgi?id=372961
<https://bugs.kde.org/show_bug.cgi?id=372961>I have got an advise to use
the «~/.config/QtProject/qtlogging.ini» file but it does not work for me.
Finally I got a message that it is my local problem and I will have to
take care of myself.
The problem is not unique to you. I searched google for
kscreen.xcb.helper and saw several related complaints.
Searching the source, I found where I think the messages are coming from:
libkscreen: backends/xcbeventlistener.cpp
You can try modifying that file and rebuilding libkscreen in plasma:
sed -e '/qCDebug(KSCREEN_XCB_HELPER)/s:^://:' \
-i backends/xcbeventlistener.cpp
but I have not tested that.
-- Bruce
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