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notoriousdbp
November 20th, 2010, 10:40 PM
Before Ubuntu 10.04, I was able to set my power management preferences to 'Do Nothing' if the battery reached a 'critical' level. This meant that, in order to calibrate the the battery I could completely empty the battery before recharging. The option to 'do nothing' in no longer available in gnome-power-management for a critical battery level.

This is starting to cause a problem as I haven't been able to properly calibrate my battery in ages and it's really starting to suffer as a result.

I've tried adjusting settings in gconf-editor to set the 'critical' level to 0% but this doesn't seem to work. Can anyone point me in the right direction of how to either re-enable the setting or are there any calibration utilities available for Ubuntu. I don't have the option to calibrate in my BIOS by the way. My laptop is an Acer Aspire 5535

Angelo Maldito
November 21st, 2010, 11:14 AM
Before Ubuntu 10.04, I was able to set my power management preferences to 'Do Nothing' if the battery reached a 'critical' level. This meant that, in order to calibrate the the battery I could completely empty the battery before recharging. The option to 'do nothing' in no longer available in gnome-power-management for a critical battery level.

This is starting to cause a problem as I haven't been able to properly calibrate my battery in ages and it's really starting to suffer as a result.

I've tried adjusting settings in gconf-editor to set the 'critical' level to 0% but this doesn't seem to work. Can anyone point me in the right direction of how to either re-enable the setting or are there any calibration utilities available for Ubuntu. I don't have the option to calibrate in my BIOS by the way. My laptop is an Acer Aspire 5535
Hi, I have the same problem. One possible solution, I'm not sure, is to open the 'system monitor' and to end the process 'power-management', then probably your laptop will be able to consume the very last drop of energy from the battery. However, it might be possible, as the power manager will not be working, that it will not be able to register the actual energy cycle of the battery. Nevertheless, it might work as the chip inside the battery will be working normally and registering the respective data. Any other ideas?

notoriousdbp
November 21st, 2010, 08:35 PM
Thanks for that, I'll give it a try and report back. I assume there must be a reason for removing the 'do nothing' option in gnome-power-manager but if anyone knows how to re-instate the option I'd like to know

notoriousdbp
November 21st, 2010, 08:55 PM
Reported on Launchpad - https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/678265

fosca
August 13th, 2011, 09:58 AM
On Ubuntu 10.10, you can recover the 'do nothing' option when the battery critical level is reached by running the gconf-editor under sudo:

sudo gconf-editor
apps --> gnome-power-manager --> actions

then you will have the choice for the critical-battery action between:

suspend, hibernate, shutdown and nothing

By default, it seems that a given user login cannot set 'nothing' with the simple 'Preferences' battery menu.

Hope that helps...

Steve Kroon
August 29th, 2012, 07:48 AM
I've also read that just draining your battery on the BIOS screen or operating system selection screen can be used to calibrate your battery.

overdrank
August 29th, 2012, 10:54 AM
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