[SRU] [F/G/Unstable/OEM-5.10] [PATCH 0/1] Use DCPD to control HP DreamColor panel

[Kai-Heng Feng]

BugLink: https://bugs.launchpad.net/bugs/1911001

[Impact]
Cannot change brightness on HP ZBook Fury with certain panel.

[Fix]
Add the panel to DPCD quirk table to use DPCD to control the panel
backlight.

[Test]
Changing backlight sysfs doesn't change the display brightness.
With the patch applied, changing sysfs backlight can really change the
display brightness.

[Where problems could occur]
This fix is specific to a single panel, so it's not likely to cause any
regression to other devices.

Kai-Heng Feng (1):
  UBUNTU: SAUCE: drm/dp: Another HP DreamColor panel brigntness fix

 drivers/gpu/drm/drm_dp_helper.c | 1 +
 1 file changed, 1 insertion(+)

-- 
2.29.2