Red Hat Bugzilla – Bug 1281555
Nonfuctional backlight with new kernel
Last modified: 2016-10-10 17:07:03 EDT
Description of problem:
After upgrade from Fedora 22 to Fedora 23 backlight is always 0 and is not possible to change it.
Using notebook HP nc8430
Version-Release number of selected component (if applicable):
Fedora 23 and kernel 4.2.5-300.fc23.i686+PAE
On every boot
Steps to Reproduce:
1. Boot Live USB/DVD of Fedora 23
Backlight is set to 0 and not possible to change
Backlight > 0 and possible to change
Please see fpaste --sysinfo link bellow
Known working kernel is 4.0.4-303.fc22.i686+PAE
*********** MASS BUG UPDATE **************
We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 23 kernel bugs.
Fedora 23 has now been rebased to 4.7.4-100.fc23. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel.
If you have moved on to Fedora 24 or 25, and are still experiencing this issue, please change the version to Fedora 24 or 25.
If you experience different issues, please open a new bug report for those.
I have moved to Fedora 24 and everything works now perfectly.
Thank you for effort.