APPLIED [OEM-5.10] Re: [PATCH 0/2][SRU][OEM-5.10][H] Can't adjust brightness on Dell Precision 7000 laptop

[Timo Aaltonen]

On 3.3.2021 15.17, AceLan Kao wrote:
> From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/1917419
> 
> [Impact]
> Screen brightness can't be adjusted. It can't be adjusted via Hotkey and
> system setting. You can see the value bar changed, but brightness
> doesn't.
> 
> [Fix]
> Bisect mainine kernel and found below commit in v5.12-rc1 fix the issue.
> f12110afee05 drm/i915/dp: Program source OUI on eDP panels
> 
> [Test]
> Verified on Dell Precision 7000 laptop with DPCD eDP panel.
> 
> [Where problems could occur]
> It checks the source OUI before writing it, so it won't re-program the
> source OUI during driver initialization.
> 
> Kai-Heng Feng (1):
>    drm/i915: Init lspcon after HPD in intel_dp_detect()
> 
> Lyude Paul (1):
>    drm/i915/dp: Program source OUI on eDP panels
> 
>   drivers/gpu/drm/i915/display/intel_ddi.c    | 19 +------
>   drivers/gpu/drm/i915/display/intel_dp.c     | 43 +++++++++++++--
>   drivers/gpu/drm/i915/display/intel_hdmi.c   |  2 +-
>   drivers/gpu/drm/i915/display/intel_lspcon.c | 61 ++++++++++++---------
>   drivers/gpu/drm/i915/display/intel_lspcon.h |  3 +-
>   5 files changed, 74 insertions(+), 54 deletions(-)
> 

applied to oem-5.10, thanks

-- 
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