This is a note to let you know that I've just added the patch titled
ACPI: video: Remove desktops without backlight DMI quirks
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
acpi-video-remove-desktops-without-backlight-dmi-qui.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 047ff27618aa0767b67331579342c42873449e19
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Tue Apr 4 13:02:51 2023 +0200
ACPI: video: Remove desktops without backlight DMI quirks
[ Upstream commit abe4f5ae5efa6a63c7d5abfa07eb02bb56b4654e ]
After the recent backlight changes acpi_video# backlight devices are only
registered when explicitly requested from the cmdline, by DMI quirk or by
the GPU driver.
This means that we no longer get false-positive backlight control support
advertised on desktop boards.
Remove the 3 DMI quirks for desktop boards where the false-positive issue
was fixed through quirks before. Note many more desktop boards were
affected but we never build a full quirk list for this.
Reviewed-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 0556c4720d3fa..b6d429a2bcb62 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -130,12 +130,6 @@ static int video_detect_force_native(const struct dmi_system_id *d)
return 0;
}
-static int video_detect_force_none(const struct dmi_system_id *d)
-{
- acpi_backlight_dmi = acpi_backlight_none;
- return 0;
-}
-
static const struct dmi_system_id video_detect_dmi_table[] = {
/*
* Models which should use the vendor backlight interface,
@@ -752,35 +746,6 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 15 3535"),
},
},
-
- /*
- * Desktops which falsely report a backlight and which our heuristics
- * for this do not catch.
- */
- {
- .callback = video_detect_force_none,
- /* Dell OptiPlex 9020M */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 9020M"),
- },
- },
- {
- .callback = video_detect_force_none,
- /* GIGABYTE GB-BXBT-2807 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
- DMI_MATCH(DMI_PRODUCT_NAME, "GB-BXBT-2807"),
- },
- },
- {
- .callback = video_detect_force_none,
- /* MSI MS-7721 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "MSI"),
- DMI_MATCH(DMI_PRODUCT_NAME, "MS-7721"),
- },
- },
{ },
};
