On my laptop the brightness doesn’t work anymore. Pressing Fn-F5 (brightness decrement) the brightness jump to 99% and then is not possible to regulate it: pressing Fn-F5 (brightness decrement) or Fn-F6 (brightness increment) the brightness is always at 99%.
I can regulate the brightness only with the intel_backlight program from the intel-backlight-20180328 package.
How can I reactivate the Fn functionality ?
Thanks in advance