Bug 508362

Summary: Keboard backlight control is intermittent
Product: [Plasma] plasmashell Reporter: Tim <kde>
Component: Power management & brightnessAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DOWNSTREAM    
Severity: normal CC: kdedev, nate
Priority: NOR    
Version First Reported In: 6.4.4   
Target Milestone: 1.0   
Platform: Solus   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Tim 2025-08-16 21:39:54 UTC 
SUMMARY


STEPS TO REPRODUCE
1. reboot
2. sometimes the keyboard brightness control is available sometimes it isn't
3. 

OBSERVED RESULT
keyboard brightness control visibility intermittent

EXPECTED RESULT
Control should be available at all times not just after reboots

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma:Operating System: Solus 4.7
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1
Kernel Version: 6.15.6-321.current (64-bit)
Graphics Platform: Wayland
Processors: 6 × Intel® Core™ i5-9400F CPU @ 2.90GHz
Memory: 32 GiB of RAM (31.3 GiB usable)
Graphics Processor: NVIDIA GeForce GT 1030


ADDITIONAL INFORMATION
Sometimes booting into windows then back to Linux makes the control visible. Control is not visible more than it is visible and lock screen doesn't turn off backlight when control is not visible.
Comment 1 Nate Graham 2025-08-18 20:42:31 UTC 
If it's intermittent, this is going to be a system integration issue, not a KDE issue. Please bring it up to the Solus folks. Thanks!
Comment 2 Tim 2025-08-18 21:19:34 UTC 
(In reply to Nate Graham from comment #1)
> If it's intermittent, this is going to be a system integration issue, not a
> KDE issue. Please bring it up to the Solus folks. Thanks!

Have filed a bug with Solus. :)
Comment 3 TraceyC 2025-09-13 19:03:44 UTC 
(In reply to Nate Graham from comment #1)
> If it's intermittent, this is going to be a system integration issue, not a
> KDE issue. Please bring it up to the Solus folks. Thanks!

How exactly would this be controlled at the distro level? Isn't this something that's shown if the hardware supports it and isn't if the hardware does not?
How would a distro make this fail to show intermittently?

As far as I know, Solus doesn't do anything that would affect this, there isn't much customization done at all.