diff options
| author | Matthew Garrett <mjg@redhat.com> | 2011-07-12 18:30:52 -0400 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-07-13 11:19:47 -0700 |
| commit | f5a3d0c4086d1854cbda545092c462b84cba20ce (patch) | |
| tree | a7ff24f477c618a7680bc617f12366656a0afe23 /include/acpi | |
| parent | 2bf71160f94270319eb965935045f825ec446e8a (diff) | |
| download | lwn-f5a3d0c4086d1854cbda545092c462b84cba20ce.tar.gz lwn-f5a3d0c4086d1854cbda545092c462b84cba20ce.zip | |
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>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/video.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/acpi/video.h b/include/acpi/video.h index 0e98e679d3a7..61109f2609fc 100644 --- a/include/acpi/video.h +++ b/include/acpi/video.h @@ -5,6 +5,8 @@ struct acpi_device; +#define ACPI_VIDEO_CLASS "video" + #define ACPI_VIDEO_DISPLAY_CRT 1 #define ACPI_VIDEO_DISPLAY_TV 2 #define ACPI_VIDEO_DISPLAY_DVI 3 |