https://bugs.kde.org/show_bug.cgi?id=360766
Bug ID: 360766
Summary: Powerdevil should wakeup external display after
suspend
Product: Powerdevil
Version: 5.5.4
Platform: Kubuntu Packages
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-devel@kde.org
Reporter: rob...@schetterer.org
reported
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1555078
I did a xrandr workaround with systemd.
What happen is:
closing lid of docked thinkpad laptop works as configured to suspend in kde.
At resume the external display does not wake up auto. ( xrandr systemd
workaround is possible with one external display attached, it does not work
well when two external displays are attached ). But i noticed if if wait 10
mins after open lid and resume ( not login ) the prime laptop display
does brightness control as configured too in KDE ( went black ). Suprise when
now touching laptop pad
the prime laptop display brightness comes up again with login screen and is
also shown suddenly
very fast on external display ( resume is much faster then with xrandr ). This
should be the default by first resume action too ! So the question is ,how to
wake up external display at first resume just like as its done when wakeup from
configured brightness control time.
Reproducible: Always
Steps to Reproduce:
1.configure kde suspend also when external display does exist with closing lid
2.resume ( means open lid ,secondary display does not wake up ), do not login ,
wait default 10 mins prime laptop display goes black, wait again a few mins.
3. Now touch mouse etc both displays show login screen very fast
Expected Results:
external attached displays should be resumed ever just like prime display
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