[PATCH 0/1][SRU][OEM-5.10] Can't adjust brightness on HP ZBook Fury 17 G7

[AceLan Kao]

From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>

BugLink: https://bugs.launchpad.net/bugs/1923000

[Impact]
The brightness could not be adjusted, and after resumed the screen is blank.

[Fix]
It looks like below commit in oem-5.10 introduces the regression
   ade9f1d9f14ef drm/i915/dp: Program source OUI on eDP panels
But it's not the culprit as mainline kernel doesn't have this issue.
So, adding a quirk on this commit to make it only affect on a certain Dell
platform to avoid the issue. Will figure out the problem and submit a
formal fix later.

[Test]
Verified on Dell and HP platforms, both platforms work well.

[Where problems could occur]
The quirk should be pretty safe for other platforms.

Chia-Lin Kao (AceLan) (1):
  UBUNTU: SAUCE: drm/i915/dp add a quirk for backlight issue

 drivers/gpu/drm/i915/display/intel_dp.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

-- 
2.25.1