https://bugs.kde.org/show_bug.cgi?id=517222
Bug ID: 517222
Summary: Takes a long time to detect monitor after powering on
after updating to 6.6.2
Classification: Plasma
Product: kwin
Version First 6.6.2
Reported In:
Platform: EndeavourOS
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
When I power on my HDMI-connected HKC OVERSEAS LIMITED G2411P, it takes a long
time for KDE to detect its presence. journalctl displays nothing until
approximately 15 seconds after I press the power button, when the line
"org_kde_powerdevil[132268]: [221669] Udev event detected" appears, and the
monitor receives a picture a few seconds later. Previously, when I powered on
the monitor, it would take only a few seconds before the monitor received a
signal. My DP-connected monitor work as it always has. (Swapping the cables
right now would be a pain, though I can do it if it's really necessary.)
STEPS TO REPRODUCE
1. Turn on the monitor
OBSERVED RESULT
It takes around fifteen seconds for the monitor to get the signal.
EXPECTED RESULT
It takes a few seconds for the monitor to get the signal.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.18.9-2-cachyos (64-bit) [running the CachyOS kernel on
EndeavourOS]
KDE Plasma Version: 6.6.2
KDE Frameworks Version: 6.23.0
Qt Version: 6.10.2
ADDITIONAL INFORMATION
kscreen-doctor -o
Output: 1 DP-1 3ae1e40b-dffd-48b8-a515-70c0357eec09
enabled
connected
priority 1
DisplayPort
replication source:0
Modes: 1:[email protected]! 2:[email protected]* 3:[email protected]
4:[email protected] 5:[email protected] 6:[email protected] 7:[email protected]
8:[email protected] 9:[email protected] 10:[email protected] 11:[email protected]
12:[email protected] 13:[email protected] 14:[email protected] 15:[email protected]
16:[email protected] 17:[email protected] 18:[email protected] 19:[email protected]
20:[email protected] 21:[email protected] 22:[email protected] 23:[email protected]
24:[email protected] 25:[email protected] 26:[email protected] 27:[email protected]
28:[email protected] 29:[email protected] 30:[email protected] 31:[email protected]
32:[email protected] 33:[email protected] 34:[email protected] 35:[email protected]
36:[email protected] 37:[email protected] 38:[email protected] 39:[email protected]
40:[email protected] 41:[email protected] 42:[email protected] 43:[email protected]
44:[email protected] 45:[email protected] 46:[email protected] 47:[email protected]
48:[email protected] 49:[email protected] 50:[email protected]
Custom modes: None
Geometry: 1920,0 1920x1080
Scale: 1
Rotation: 1
Overscan: 0
Vrr: Never
RgbRange: Automatic
HDR: disabled
Wide Color Gamut: disabled
ICC profile: none
Color profile source: sRGB
Color power preference: prefer efficiency and performance
Brightness control: supported, set to 100% and dimming to 100%
DDC/CI: allowed
Color resolution: automatic (10), range: [8; 16] bits per color
Allow EDR: unsupported
Sharpness control: unsupported
Automatic brightness: unsupported
Output: 2 HDMI-A-1 0d2b7bba-e351-45d2-a5bc-b47e2874155a
enabled
connected
priority 2
HDMI
replication source:0
Modes: 51:[email protected]! 52:[email protected]* 53:[email protected]
54:[email protected] 55:[email protected] 56:[email protected]
57:[email protected] 58:[email protected] 59:[email protected] 60:[email protected]
61:[email protected] 62:[email protected] 63:[email protected] 64:[email protected]
65:[email protected] 66:[email protected] 67:[email protected] 68:[email protected]
69:[email protected] 70:[email protected] 71:[email protected] 72:[email protected]
73:[email protected] 74:[email protected] 75:[email protected] 76:[email protected]
77:[email protected] 78:[email protected] 79:[email protected] 80:[email protected]
81:[email protected] 82:[email protected] 83:[email protected] 84:[email protected]
85:[email protected] 86:[email protected] 87:[email protected]
Custom modes: None
Geometry: 0,0 1920x1080
Scale: 1
Rotation: 1
Overscan: 0
Vrr: Never
RgbRange: Automatic
HDR: disabled
Wide Color Gamut: disabled
ICC profile: none
Color profile source: sRGB
Color power preference: prefer efficiency and performance
Brightness control: supported, set to 100% and dimming to 100%
DDC/CI: allowed
Color resolution: automatic (10), range: [8; 16] bits per color
Allow EDR: unsupported
Sharpness control: unsupported
Automatic brightness: unsupported
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