I am having a similar problem with 9.10 (clean install) on Dell 700m laptop. Power management worked great with 8.10 but with 9.10 whenever I unplug the laptop power adapter, the machine goes into sleep or hibernate (whichever I have set in the power options). This happens regardless of the state of charge of the battery and it happens on both plugging and unplugging the power adapter. The battery is fine and runs for 5 hours. The first message in dmesg after the unplug is: [ 287.600663] b44: eth0: powering down PHY This seems to be initiating the sleep or hibernate action. I had 8.10 installed on this machine before and never had a problem like this. Power management worked perfectly with sleep and hibernate and I could plug and unplug the power adapter without causing a sleep or hibernate event. Steve Langasek wrote on 2009-12-24: #6
Please include in your report the output of the 'acpi_listen' command left running across a suspend/resume cycle. m...@mark-laptop:~$ acpi_listen ( power adapter unplugged here) ac_adapter ADP1 00000080 00000000 battery BAT0 00000080 00000001 battery BAT0 00000081 00000001 battery BAT0 00000081 00000001 (goes into suspend) (plug in power adapter) ac_adapter ADP1 00000080 00000000 battery BAT0 00000080 00000001 battery BAT0 00000081 00000001 -- Lap hibernates when disconnected from AC power (and no, it's not a battery issue) https://bugs.launchpad.net/bugs/499170 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs