Went ahead and did some diagnosing as per the Debugging GPM wiki
article. I started GPM in verbose mode and set it to log to a file. I'm
posting the file as an attachment, as well as the relative event lines
in the comment here.
This is what happens when the AC is unplugged:
TI:23:50:41 TH:0x9fb9640FI:gpm-brightness-xrandr.c
FN:gpm_brightness_xrandr_foreach_resource,375
- resource 1 of 4
TI:23:50:41 TH:0x9fb9640FI:gpm-brightness-xrandr.c
FN:gpm_brightness_xrandr_foreach_resource,375
- resource 2 of 4
TI:23:50:41 TH:0x9fb9640FI:gpm-brightness-xrandr.c
FN:gpm_brightness_xrandr_output_set,322
- percent=100, absolute=15125
TI:23:50:41 TH:0x9fb9640FI:gpm-brightness-xrandr.c
FN:gpm_brightness_xrandr_output_set,324 AC Unplugged, GPM icon locks,
brightness changes stop being shown on OSD, corrupted graphic appears on screen.
- hard value=7563, min=0, max=15125
TI:23:51:23 TH:0x9fb9640FI:gpm-brightness-xrandr.c
FN:gpm_brightness_xrandr_foreach_resource,375 GPM Icon changes,
brightness OSD appears if changed while locked, corrupted graphic disappears.
- resource 3 of 4
TI:23:51:23 TH:0x9fb9640FI:gpm-brightness-xrandr.c
FN:gpm_brightness_xrandr_foreach_resource,375
- resource 4 of 4
TI:23:51:23 TH:0x9fb9640FI:gpm-backlight.c
FN:gpm_backlight_brightness_evaluate_and_set,456
- emitting brightness-changed : 100
TI:23:51:23 TH:0x9fb9640FI:gpm-profile.c
FN:ac_adaptor_changed_cb,632
- on AC
TI:23:51:23 TH:0x9fb9640FI:gpm-info.c FN:gpm_info_event_log,579
- Adding 0 to the event log
The LCD backlighting changes the moment AC is unplugged and it will toggle even
if AC is replugged while GPM is locked up, so HAL is operating properly, GPM
seems to be what's locking for some reason. I'll do whatever I can to help out
discover where the problem is.
** Attachment added: gpm.debug.log.txt
http://launchpadlibrarian.net/18519545/gpm.debug.log.txt
--
GPM Icon locks up on AC Status change
https://bugs.launchpad.net/bugs/274197
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