https://bugs.kde.org/show_bug.cgi?id=468547
Bug ID: 468547
Summary: Second monitor have no hdmi signal after waking from
sleep
Classification: I don't know
Product: kde
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
I have several monitors. One monitor is connected with displayport, second
monitor is connected with hdmi. The problem appears after sleep. The hdmi
monitor stays in stand by mode (waiting for signal).
STEPS TO REPRODUCE
1. Turn on PC. Both monitors show picture.
2. Turn PC to sleep.
3. Wake up PC.
OBSERVED RESULT
The picture is only shown on displayport monitor. On hdmi monitor there is no
signal.
EXPECTED RESULT
Picture should be shown on both monitors.
This is a regression. It worked normally previously. Unfortunately, I do not
know exactly in which version it was broken. Probably a month ago.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.9
Graphics Platform: Wayland
Graphics Processor: AMD Radeon RX 580 Series
ADDITIONAL INFORMATION
There are workarounds:
1) Turn off, then turn on the monitor by its power button.
2) Disable, then enable the hdmi monitor in system settings.
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