Bug 503047

Summary:	The brightness cannot be adjusted on Kubuntu 25.04
Product:	[Plasma] plasmashell	Reporter:	Argo40 <369634409>
Component:	Power management & brightness	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	john.kizer, kde, nate, sitter
Priority:	NOR
Version First Reported In:	6.3.4
Target Milestone:	1.0
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Argo40 2025-04-20 09:17:42 UTC

SUMMARY
The brightness of Kubuntu cannot be adjusted.
Even if the NVIDIA driver is installed, it doesn't work. 
But this is avaiable in VMware Workstation.

STEPS TO REPRODUCE
1. Click the light bulb icon in the lower right corner and slide the brightness bar. 
2. Then nothing happened.
3. 

OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 6.3.4
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.3

ADDITIONAL INFORMATION

Comment 1 Nate Graham 2025-04-22 15:55:15 UTC

So this system is running in a VM?

Comment 2 Bug Janitor Service 2025-05-07 03:47:03 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!

Comment 3 flotwig 2025-05-14 22:26:45 UTC

I'm having a likely related issue now after upgrading from Kubuntu 24.10 to 25.04 on a Lenovo X1 Extreme gen1 laptop. Laptop brightness keys used to work before, now they do nothing.

KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.3

Comment 4 Bug Janitor Service 2025-05-29 03:59:38 UTC

🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!

Comment 5 Bug Janitor Service 2025-06-13 03:48:22 UTC

🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.