#8094 HIGH Future : joyride-2301: Backlight always stays on with "Advanced Power Management"
Zarro Boogs per Child
bugtracker at laptop.org
Fri Sep 12 08:57:02 EDT 2008
#8094: joyride-2301: Backlight always stays on with "Advanced Power Management"
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Reporter: thomaswamm | Owner:
Type: defect | Status: reopened
Priority: high | Milestone: Future Release
Component: power manager (OHM) | Version: not specified
Resolution: | Keywords: relnote
Next_action: code | Verified: 0
Blockedby: 4606 | Blocking:
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Changes (by gnu):
* status: closed => reopened
* resolution: duplicate =>
* blockedby: => 4606
Comment:
This does not duplicate #2765 (power down DCON chip to save power); it is
not even blocked by #2765. What it is blocked by is #4606 (XO can't
resume based on a timer).
The X DPMS code would power off the screen and backlight, if its 20-minute
timer ever woke it up. But because after a minute we're suspended, and
suspend doesn't awaken based on timers, X never gets a chance to do its
job. The fix is to resume based on pending timers.
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Ticket URL: <http://dev.laptop.org/ticket/8094#comment:4>
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