Ticket #231 (closed defect: wontfix)

Opened 12 years ago

Last modified 11 years ago

switch display backlight GPIO to "output, off" when suspending

Reported by: laforge@… Owned by: willie_chen@…
Priority: high Milestone:
Component: kernel Version: current svn head
Severity: minor Keywords:
Cc: buglog@… Blocked By:
Blocking: Estimated Completion (week):
HasPatchForReview: PatchReviewResult:


Currently, when resuming from suspend, the display backlight GPIO seems to get
set to input or output/high. This means that even if you have a dark backlight,
it will get to full brightness immediately when resuming, only to get darker
when the pwm driver resumes.

This might be useful for debugging, but we need to change this. The display
backlight should be dark, until LCM has been fully initialized, and it has to
come back with the exact brightness level that it had before suspend.

Assigning this to Werner, who is already familiar with the code.

Change History

comment:1 Changed 12 years ago by alphaone@…

  • blocked set to 341

Werner, did you look into this already?

comment:2 Changed 11 years ago by willie_chen@…

  • Owner changed from werner@… to willie_chen@…

comment:3 Changed 11 years ago by willie_chen@…

  • Status changed from new to closed
  • Resolution set to later

It's not important for our release.

comment:4 Changed 11 years ago by laforge@…

  • Status changed from closed to reopened
  • Resolution later deleted

If this behaviour is still correct (which I think it is), then it is a bug and
it should be open until it is actually fixed.

If it's not valid for one particular release, then please make use of the
priority, severity or 'target milestone' feature of bugzilla.

comment:5 Changed 11 years ago by andy@…

  • Status changed from reopened to new
  • Owner changed from willie_chen@… to laforge@…

comment:6 Changed 11 years ago by mickey@…

  • Owner changed from laforge@… to willie_chen@…

reassigning to default owner

comment:7 Changed 11 years ago by andy

  • Status changed from new to closed
  • Resolution set to wontfix

I don't believe anyone is going to address this after 6 months, it does not apply to current products with 50633, so closing.

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