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apport-collect 1862885
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Changed in: linux (Ubuntu Bionic)
Status: New => Incomplete
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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:
Incomplete
Status in linux-oem-osp1 package in Ubuntu:
New
Status in linux source package in Bionic:
Incomplete
Status in linux-oem-osp1 source package in Bionic:
New
Status in linux source package in Eoan:
New
Status in linux source package in Focal:
Incomplete
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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