[SRU] [F/G/Unstable/OEM-5.6] [PATCH 0/3] Enable brightness control on HP DreamColor panel
kai.heng.feng at canonical.com
Wed Oct 7 11:53:56 UTC 2020
Brightness on HP DreamColor panel, which can be found on new HP Zbook
Studio, cannot be changed.
Let DRM know the panel should use DPCD instead of PWM to control
With the patch applied, we can change the brightness on HP Zbook Studio.
If there's any panel in the quirk list depends on checking brightness
control capability then this change will have an impact. However it's
rather unlikely because it defeats the purpose of the quirk list.
Kai-Heng Feng (2):
UBUNTU: SAUCE: drm/i915/dpcd_bl: Skip testing control capability with
force DPCD quirk
UBUNTU: SAUCE: drm/dp: HP DreamColor panel brigntness fix
Lyude Paul (1):
drm/i915/dpcd_bl: Unbreak enable_dpcd_backlight modparam
drivers/gpu/drm/drm_dp_helper.c | 1 +
drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c | 9 ++++++---
2 files changed, 7 insertions(+), 3 deletions(-)
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