https://bugs.freedesktop.org/show_bug.cgi?id=42960 --- Comment #11 from Sandeep --- I attempted to check if it was a backlight problem, following the troubleshooting steps here: https://wiki.archlinux.org/index.php/Backlight Booting with those kernel parameters doesn't help in my case. -- You are receiving this mail because: You are the assignee for the bug.