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ACPI / video: Add force_none quirk for Dell OptiPlex 9020M

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Dell OptiPlex 9020M is a micro PC desktop that has no built-in
LCD panel and its acpi_video does not work.

Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Alex Hung 2017-07-12 17:45:57 -07:00 committed by Rafael J. Wysocki
parent 5771a8c088
commit 1f59ab2783
1 changed files with 14 additions and 0 deletions
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14
drivers/acpi/video_detect.c
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@ -103,6 +103,12 @@ static int video_detect_force_native(const struct dmi_system_id *d)
return 0; 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[] = { static const struct dmi_system_id video_detect_dmi_table[] = {
/* On Samsung X360, the BIOS will set a flag (VDRV) if generic /* On Samsung X360, the BIOS will set a flag (VDRV) if generic
* ACPI backlight device is used. This flag will definitively break * ACPI backlight device is used. This flag will definitively break
@ -313,6 +319,14 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"), DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7510"),
}, },
}, },
{
.callback = video_detect_force_none,
.ident = "Dell OptiPlex 9020M",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 9020M"),
},
},
{ }, { },
}; };