[Bug 147902] Re: Battery disappears on restore, no longer reacts to lid close

[bendis]

I don't know how HAL and guidance-power-manager exactly work, but IMHO
the source of the problem is the change of the udi of the "lid" button:

lshal before suspend:

...
udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_2'
  button.has_state = false  (bool)
  button.type = 'sleep'  (string)
  info.addons = {'hald-addon-keyboard'} (string list)
  info.capabilities = {'input', 'button'} (string list)
  info.category = 'input'  (string)
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  info.product = 'Sleep Button (CM)'  (string)
  info.udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_2'  (string)
  input.device = '/dev/input/event6'  (string)
  input.product = 'Sleep Button (CM)'  (string)
  linux.device_file = '/dev/input/event6'  (string)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'input'  (string)
  linux.sysfs_path = '/sys/class/input/input28/event6'  (string)

udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_1'
  button.has_state = false  (bool)
  button.type = 'power'  (string)
  info.addons = {'hald-addon-keyboard'} (string list)
  info.capabilities = {'input', 'button'} (string list)
  info.category = 'input'  (string)
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  info.product = 'Power Button (FF)'  (string)
  info.udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_1'  (string)
  input.device = '/dev/input/event2'  (string)
  input.product = 'Power Button (FF)'  (string)
  linux.device_file = '/dev/input/event2'  (string)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'input'  (string)
  linux.sysfs_path = '/sys/class/input/input26/event2'  (string)

udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_0'
  button.has_state = true  (bool)
  button.state.value = false  (bool)
  button.type = 'lid'  (string)
  info.addons = {'hald-addon-keyboard'} (string list)
  info.capabilities = {'input', 'input.switch', 'button'} (string list)
  info.category = 'input'  (string)
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  info.product = 'Lid Switch'  (string)
  info.udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_0'  (string)
  input.device = '/dev/input/event4'  (string)
  input.product = 'Lid Switch'  (string)
  linux.device_file = '/dev/input/event4'  (string)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'input'  (string)
  linux.sysfs_path = '/sys/class/input/input27/event4'  (string)
...

and after resume:
...
udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_2'
  button.has_state = true  (bool)
  button.state.value = false  (bool)
  button.type = 'lid'  (string)
  info.addons = {'hald-addon-keyboard'} (string list)
  info.capabilities = {'input', 'input.switch', 'button'} (string list)
  info.category = 'input'  (string)
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  info.product = 'Lid Switch'  (string)
  info.udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_2'  (string)
  input.device = '/dev/input/event6'  (string)
  input.product = 'Lid Switch'  (string)
  linux.device_file = '/dev/input/event6'  (string)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'input'  (string)
  linux.sysfs_path = '/sys/class/input/input31/event6'  (string)

udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_1'
  button.has_state = false  (bool)
  button.type = 'sleep'  (string)
  info.addons = {'hald-addon-keyboard'} (string list)
  info.capabilities = {'input', 'button'} (string list)
  info.category = 'input'  (string)
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  info.product = 'Sleep Button (CM)'  (string)
  info.udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_1'  (string)
  input.device = '/dev/input/event8'  (string)
  input.product = 'Sleep Button (CM)'  (string)
  linux.device_file = '/dev/input/event8'  (string)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'input'  (string)
  linux.sysfs_path = '/sys/class/input/input32/event8'  (string)

udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_0'
  button.has_state = false  (bool)
  button.type = 'power'  (string)
  info.addons = {'hald-addon-keyboard'} (string list)
  info.capabilities = {'input', 'button'} (string list)
  info.category = 'input'  (string)
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  info.product = 'Power Button (FF)'  (string)
  info.udi = '/org/freedesktop/Hal/devices/computer_logicaldev_input_0'  (string)
  input.device = '/dev/input/event2'  (string)
  input.product = 'Power Button (FF)'  (string)
  linux.device_file = '/dev/input/event2'  (string)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'input'  (string)
  linux.sysfs_path = '/sys/class/input/input30/event2'  (string)
...

-- 
Battery disappears on restore, no longer reacts to lid close 
https://bugs.launchpad.net/bugs/147902
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