I have two backlight devices in /sys/class/backlight: toshiba and intel_backlight. The former works only before I put my laptop on sleep and the latter works perfectly.
/sys/class/backlight/toshiba/type = "platform" while
/sys/class/backlight/intel_backlight/type = "raw".
Gnome 3.16 is somehow using the former even though I have the following
Section "Device" Identifier "card0" Driver "intel" Option "Backlight" "intel_backlight" BusID "PCI:0:2:0" EndSection
I'm trying to find a workaround (I already posted a bug report). Is it possible to eliminate the
toshiba device altogether without breaking acpi or other functionality?
I'm using Arch linux with latest kernel (4.0.1) but the problem is present even with the lts kernel (3.14).