6 Replies Latest reply on Jan 5, 2016 8:24 AM by btspce

    Unable to change backlight brightness after cold starts.


      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