AnsweredAssumed Answered

Unable to change backlight brightness after cold starts.

Question asked by btspce on Aug 21, 2015
Latest reply on Jan 5, 2016 by btspce

Description of problem:

RHEL 7.1 fully updated. Unable to change backlight with catalyst after each cold start. Doing a reboot after each cold start solves the issue and it continues to work on every reboot as long as you don't do a cold start. Tested both 15.5, 15,7. Radeonsi works all the time.


HP Elitebook 745 G2

AMD Kaveri A10 PRO-7350B R6, 10 Compute Cores 4C+6G × 4


Please fix this annoying problem.


Steps to reproduce:

1. Cold start computer. Backlight controls does not work.

2. Reboot

3. Backlight controls works.


Actual result:

backlight controls does not work after a cold boot.

Expected result:

Should work without reboot.


AMD Bugzilla link: Bug 1187 – RHEL 7.1 unable to change backlight brightness