Bug 341619

Summary:	Screen Brightness does not change
Product:	[Plasma] Powerdevil	Reporter:	Jason Oliver <metroidxprime>
Component:	general	Assignee:	Plasma Development Mailing List <plasma-devel>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	kcraj2, kde, sebas
Priority:	NOR	Keywords:	triaged
Version:	5.1.1
Target Milestone:	---
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Jason Oliver 2014-12-07 03:48:23 UTC

Laptop Brightness does not work. Cannot dim screen. Screen stays at max brightness with KDE 5.1 Kde framework 5.4

Reproducible: Always

Steps to Reproduce:
1.go to systemsettings
2.in systemsettings go to Powermanagement
3.Slide screen brightness level left or right and click apply. With me screen brightness does not adjust

Actual Results:  
screen brightness does not change

Expected Results:  
should dim or brighten depending on placement of level slider

Kde framework 5 is awesome keep up the good work.

Comment 1 Kai Uwe Broulik 2014-12-28 06:27:51 UTC

Are you touching the correct slider? There's three of them (AC plugged in, battery mode, low battery), also make sure the checkbox next to it is checked.

Does changing brightness using the battery applet in system tray work?

Comment 2 Santosh K 2015-05-03 10:20:12 UTC

I have similar problem with my laptop. I am currently using Kubuntu 15.04 (Plasma 5.3).
The brightness slider doesn't change the brightness. The key board shortcuts (ex: Fn + F5/F6) shows the brightness icon with slider moving but doesn't change the brightness on screen.

I am using the following temporary fix:

I write values (0-4822) in the file "/sys/class/backlight/intel_backlight/brightness" to change the brightness.

Comment 3 Andrew Crouthamel 2018-09-25 21:49:08 UTC

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days, the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information.

For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please set the bug status as REPORTED so that the KDE team knows that the bug is ready to be confirmed.

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

Comment 4 Andrew Crouthamel 2018-10-27 01:59:00 UTC

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information.

For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

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