Bug 423457 - When unlocking a session after laptop lid has been closed screen brightness is not restored
Summary: When unlocking a session after laptop lid has been closed screen brightness i...
Status: RESOLVED DUPLICATE of bug 452492
Alias: None
Product: Powerdevil
Classification: Plasma
Component: general (show other bugs)
Version: 5.20.2
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords: wayland
Depends on:
Blocks:
 
Reported: 2020-06-24 17:07 UTC by Matej Mrenica
Modified: 2024-05-18 11:39 UTC (History)
7 users (show)

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Description Matej Mrenica 2020-06-24 17:07:04 UTC 
SUMMARY
... or is reset to 0%. But it doesn't always happen.

SOFTWARE/OS VERSIONS
KDE Frameworks Version: 5.71
Qt Version: 5.15.0

ADDITIONAL INFORMATION
Only on Wayland
Comment 1 Matej Mrenica 2020-07-27 13:16:11 UTC 
Here is a log, someone might notice something useful: https://pastebin.com/zYSizmrD
Comment 2 Patrick Silva 2020-11-01 11:42:23 UTC 
I can't reproduce on neon unstable. Can you reproduce with newer Plasma?

Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.20.80
KDE Frameworks Version: 5.76.0
Qt Version: 5.15.0
Comment 3 Matej Mrenica 2020-11-01 17:52:01 UTC 
I can only test on Arch Linux with Plasma 5.20.2 and I have this issue there.
Comment 4 Nate Graham 2020-11-02 21:31:03 UTC 
Is the power cord connected or not? Are you hitting https://gitlab.freedesktop.org/upower/upower/-/issues/126 or not?
Comment 5 Matej Mrenica 2020-11-03 07:04:01 UTC 
It's connected all the time, I don't think it's the issue.
Comment 6 Syiad 2022-09-26 11:54:04 UTC 
I have the same issue with Kubuntu 22.04.
Frameworks 5.98.0
Plasma 5.25.5
Qt 5.15.03
Kernel 5.15.0-50
Wayland

When I open the lid to resume a session, the screen brightness is at full power (I suppose). The brightness percentage  setting remains where it was prior to suspend, but the actual brightness is ~100%. To restore it after login, I have to decrease and then increase it by one step; it jumps to the new value upon decrease.
Comment 7 postix 2024-05-18 11:39:53 UTC 

*** This bug has been marked as a duplicate of bug 452492 ***