When I hibernate my Sony Vaio VPCS11X9E laptop when it is still plugged and then turn it on unplugged the system can't detect that it's now running on battery power.
I think the problem is in the kernel because I've tried to kill and restart both gnome-power-manager and upowerd and both didn't solve the issue. Also powertop reports that "no ACPI power usage estimate available".
This is what 'upower -d' reports:
$ upower -d
power supply: yes
updated: Fri May 14 00:43:51 2010 (1456 seconds ago)
has history: no
has statistics: no
vendor: Sony Corp.
power supply: yes
updated: Fri May 14 01:07:58 2010 (9 seconds ago)
has history: yes
has statistics: yes
energy: 51.49 Wh
energy-empty: 0 Wh
energy-full: 57.24 Wh
energy-full-design: 57.24 Wh
energy-rate: 11.74 W
voltage: 3.728 V
1273795678 89.955 fully-charged
1273795648 90.147 fully-charged
1273795618 90.269 fully-charged
1273795588 90.321 fully-charged
1273795678 11.740 fully-charged
1273795648 12.010 fully-charged
1273795618 12.100 fully-charged
1273795588 11.740 fully-charged
I'm pretty sure it is unplugged as I run that command :-)
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