https://bugs.kde.org/show_bug.cgi?id=433019
--- Comment #4 from Kai Uwe Broulik <k...@privat.broulik.de> --- Okay, so that is the fallback driver I think, can you check the contents of "brightness" and "max_brightness" in that folder? Also, when you echo into brightness, does it change? e.g. echo 5 | sudo tee /sys/class/backlight/acpi_video0/brightness -- You are receiving this mail because: You are watching all bug changes.