tree a7ff24f477c618a7680bc617f12366656a0afe23
parent 2bf71160f94270319eb965935045f825ec446e8a
author Matthew Garrett <mjg@redhat.com> 1310509852 -0400
committer Keith Packard <keithp@keithp.com> 1310581187 -0700

i915: Fix opregion notifications

opregion-based platforms will send ACPI video event 0x80 for a range of
notification types for legacy compatibility. This is interpreted as a
display switch event, which may not be appropriate in the circumstances.
When we receive such an event we should make sure that the platform is
genuinely requesting a display switch before passing that event through
to userspace.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Tested-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>