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ACPI: video: Use native backlight on Dell Inspiron N4010
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The Dell Inspiron N4010 does not have ACPI backlight control,
so acpi_video_get_backlight_type()'s heuristics return vendor as
the type to use.

But the vendor interface is broken, where as the native (intel_backlight)
works well, add a quirk to use native.

Link: https://lore.kernel.org/regressions/CALF=6jEe5G8+r1Wo0vvz4GjNQQhdkLT5p8uCHn6ZXhg4nsOWow@mail.gmail.com/
Reported-and-tested-by: Ben Greening <bgreening@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Hans de Goede authored and Rafael J. Wysocki committed Jul 15, 2022
1 parent f0341e6 commit 03c440a
Showing 1 changed file with 8 additions and 0 deletions.
8 changes: 8 additions & 0 deletions drivers/acpi/video_detect.c
Original file line number Diff line number Diff line change
Expand Up @@ -347,6 +347,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro12,1"),
},
},
{
.callback = video_detect_force_native,
/* Dell Inspiron N4010 */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron N4010"),
},
},
{
.callback = video_detect_force_native,
/* Dell Vostro V131 */
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