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authorAlex Hung <alex.hung@canonical.com>2020-09-14 01:34:03 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-09-25 13:59:24 +0300
commitb226faab4e7890bbbccdf794e8b94276414f9058 (patch)
treef984aea61daf90bdcf1caa365cf110ed4227720e /drivers/acpi/video_detect.c
parentba4f184e126b751d1bffad5897f263108befc780 (diff)
downloadlinux-b226faab4e7890bbbccdf794e8b94276414f9058.tar.xz
ACPI: video: use ACPI backlight for HP 635 Notebook
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>
Diffstat (limited to 'drivers/acpi/video_detect.c')
-rw-r--r--drivers/acpi/video_detect.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 2499d7e3c710..36b62e9c8b69 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -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 */
{