ACPI: Video Device [VGA] (multi-head: yes  rom: no  post: no)
ACPI: Video Device [GFX0] (multi-head: yes  rom: no  post: no)
video device notify
video device notify
video device notify
set_level status: 0
video device notify
set_level status: 0
video device notify
set_level status: 0
video device notify
set_level status: 0
video device notify
video device notify
video device notify
video device notify