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the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
eoan' to 'verification-done-eoan'. If the problem still exists, change
the tag 'verification-needed-eoan' to 'verification-failed-eoan'.

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.

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** Tags added: verification-needed-eoan

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https://bugs.launchpad.net/bugs/1862885

Title:
  Sometimes can't adjust brightness on Dell AIO

Status in linux package in Ubuntu:
  Fix Committed
Status in linux-oem-osp1 package in Ubuntu:
  New
Status in linux source package in Bionic:
  Fix Committed
Status in linux-oem-osp1 source package in Bionic:
  Fix Committed
Status in linux source package in Eoan:
  Fix Committed
Status in linux source package in Focal:
  Fix Committed

Bug description:
  [Impact]
  We already added retry on the backlight driver, but the scalar have to take 
some time to activate panel during booting up, and 2 seconds seem doesn't 
enough. So, it sometimes fails to get the response from scalar.

  [Fix]
  Enlarge the retry time from 2 seconds to 5 seconds.
  We didn't observe the response time longer than 3 seconds, but to be more 
confident, enlarge the value to 5 seconds.

  [Test]
  Verified on new Dell AIO platform.

  [Regression Potential]
  Low, increase the retry times doesn't hurt anything.

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