i915.alse_backlight=1 doesn't have any significant effect for me. Brightness can be lightened on again only with hotkeys (brightness_workaraound.pl script associated to Fn Keys).
i915.alse_ backlight= 1 doesn't have any significant effect for me. workaraound. pl script associated to Fn Keys).
Brightness can be lightened on again only with hotkeys (brightness_