CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2025/06/02 04:25:01
Modified files:
sys/dev/pci/drm/include/acpi: video.h
sys/dev/pci/drm/i915/display: intel_opregion.c
sys/dev/pci/drm: drm_linux.c
Log message:
Ignore inteldrm opregion backlight requests if we're using native backlight
control. These are still generated on AC power changes on a variety of
laptops, but since they're supposed to be ignored, the brightness level
often doesn't make sense.
To do this, implement acpi_video_get_backlight_type() by checking if
there's a ws_get_param function that supports the WSDISPLAYIO_PARAM_BRIGHTNESS
property, as done in inteldrm_init_backlight().
fixes strange brightness changes on my X13 gen 1, lucas@'s X13 gen 2, and
kn@'s T14 gen 3; no change on older laptops such as my X240 or jsg@'s X40
ok jsg@ kettenis@
