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ACPI: video: use ACPI backlight for HP 635 Notebook

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The default backlight interface is AMD's radeon_bl0 which does not
work on this system, so use the ACPI backlight interface on it
instead.

BugLink: https://bugs.launchpad.net/bugs/1894667
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Alex Hung <alex.hung@canonical.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Alex Hung 2020-09-13 16:34:03 -06:00 committed by Rafael J. Wysocki
parent ba4f184e12
commit b226faab4e
1 changed files with 9 additions and 0 deletions
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9
drivers/acpi/video_detect.c
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@ -282,6 +282,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "530U4E/540U4E"),
},
},
/* https://bugs.launchpad.net/bugs/1894667 */
{
.callback = video_detect_force_video,
.ident = "HP 635 Notebook",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
DMI_MATCH(DMI_PRODUCT_NAME, "HP 635 Notebook PC"),
},
},
/* Non win8 machines which need native backlight nevertheless */
{