Ticket #1105 (assigned defect)

Opened 6 years ago

Last modified 5 years ago

Blanking GTA01 LCD doesn't switch off display refresh

Reported by: tonyg@… Owned by: openmoko-kernel
Priority: high Milestone:
Component: kernel Version: current svn head
Severity: normal Keywords:
Cc: buglog@… Blocked By:
Blocking: Estimated Completion (week):
HasPatchForReview: no PatchReviewResult:
Reproducible:

Description

Blanking the GTA01 LCD, for instance by the default X built-in screensaver
action, doesn't seem to switch off the display refresh. It'd be nice from a
power-management perspective if it did.

Change History

comment:1 Changed 6 years ago by alphaone@…

The backlight is also not completely switched off. You can see that in a dark
room after "PM: dim only" kicks in.

comment:2 Changed 5 years ago by mickey@…

  • Status changed from new to assigned

The backlight at least can be switched off with
/sys/class/backlight/gta01-bl/bl_power -- the actual display probably still
consumes some mW unless turned off.

comment:3 Changed 5 years ago by roh

  • Owner changed from willie_chen@… to willie_chen

comment:4 Changed 5 years ago by john_lee

  • Owner changed from willie_chen to openmoko-kernel
  • HasPatchForReview unset

should be fixed in userspace or kernelspace ?

Note: See TracTickets for help on using tickets.