https://bugs.freedesktop.org/show_bug.cgi?id=81382 --- Comment #29 from Daniel Kirsten --- I tested the patches from 2014-09-17 against 3.17-rc5. When I applied both patches, the backlight was not turned off, when the kernel switched into graphics mode. The kernel worked very well. Without the patches, the backlight was turned off, when the kernel switched into graphics mode. Daniel -- You are receiving this mail because: You are the assignee for the bug.