This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
groovy' to 'verification-done-groovy'. If the problem still exists,
change the tag 'verification-needed-groovy' to 'verification-failed-
groovy'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-groovy

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem-5.6 in Ubuntu.
https://bugs.launchpad.net/bugs/1905663

Title:
  Add dpcd backlight control for 0x4c83 0x4f41

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  In Progress
Status in linux-oem-5.10 package in Ubuntu:
  New
Status in linux-oem-5.6 package in Ubuntu:
  Invalid
Status in linux source package in Focal:
  Fix Committed
Status in linux-oem-5.10 source package in Focal:
  Fix Released
Status in linux-oem-5.6 source package in Focal:
  Fix Released
Status in linux source package in Groovy:
  Fix Committed
Status in linux source package in Hirsute:
  In Progress

Bug description:
  [Impact]
  There is a new OLED panel that is required to be listed in the EDID quirk to 
make its backlight work.

  [Fix]
  The commit adds its EDID to the quirk.
  https://lkml.org/lkml/2020/11/19/1564

  [Test]
  Verified on Dell's platform with this panel.

  [Where problems could occur]
  Only if this panel switches to use PWM mode only, and doesn't support DPCD 
backlight.

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