** Description changed:

  [Impact]
  The brightness is not changed obviously during 200 to 255.
  
  [Fix]
  max_cll defines the content light luminance for individual pixel.
  max_fall defines frame-average level luminance.
  Use max_fall value instead of max_cll as a limit for brightness control.
  
  [Test]
  Verified on AMD Cezanne, Barcelo and Rembrandt, also on LCD panel and
  OLED panel. The brightness is changed more obivously on OLED panel, and
  no affect on LCD panel.
  
  [Where problems could occur]
  Low risk, It may cause the max brightness can't be set.
+ 
+ Due to the schedule of OEM project, SRU this patch as SAUCE in OEM
+ kernels only.

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-5.14 in Ubuntu.
https://bugs.launchpad.net/bugs/1978986

Title:
  [SRU][OEM-5.14/OEM-5.17][PATCH 0/1] Fix oled brightness set above
  frame-average luminance on AMD

Status in HWE Next:
  In Progress
Status in linux package in Ubuntu:
  Invalid
Status in linux-oem-5.14 package in Ubuntu:
  In Progress
Status in linux-oem-5.17 package in Ubuntu:
  In Progress
Status in linux-oem-5.14 source package in Focal:
  In Progress
Status in linux-oem-5.17 source package in Jammy:
  In Progress

Bug description:
  [Impact]
  The brightness is not changed obviously during 200 to 255.

  [Fix]
  max_cll defines the content light luminance for individual pixel.
  max_fall defines frame-average level luminance.
  Use max_fall value instead of max_cll as a limit for brightness control.

  [Test]
  Verified on AMD Cezanne, Barcelo and Rembrandt, also on LCD panel and
  OLED panel. The brightness is changed more obivously on OLED panel, and
  no affect on LCD panel.

  [Where problems could occur]
  Low risk, It may cause the max brightness can't be set.

  Due to the schedule of OEM project, SRU this patch as SAUCE in OEM
  kernels only.

To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1978986/+subscriptions


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