Ticket #231 (closed defect: wontfix)
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: | ||
| Reproducible: |
Description
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:3 Changed 6 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 6 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 6 years ago by andy@…
- Status changed from reopened to new
- Owner changed from willie_chen@… to laforge@…
Werner, did you look into this already?