Battery Usage

[kmsalex]

you should also check out this web site, helped more then granola did, almost forgot about it.
http://lesswatts.org/

[mikewhatever]

There are problems with granola.
When you install it, the following message appears:

removing any system startup links to /etc/init.d/ondemand

the links are as follows, and they are basically deleted:

find /etc/rc*d/* | grep ondemand
/etc/rc2.d/S99ondemand
/etc/rc3.d/S99ondemand
/etc/rc4.d/S99ondemand
/etc/rc5.d/S99ondemand

If you later remove granola, the default ondemand cpu governor will not be used.

The other problem is - the screen saver stops working, which means the screen always stays on.

Users on their Facebook page report the lack of support, and, last but not least, there is no evidence at all that the software works as expected. In fact, no one really knows what it does.

[Artemis3]

If you later remove granola, the default ondemand cpu governor will not be used.

The other problem is - the screen saver stops working, which means the screen always stays on.

So, how to fix this back? On the outside it looks like just another userspace governor.

[Artemis3]

I think i restored the scripts using these commands:

cd /etc/init.d
sudo update-rc.d ondemand defaults 99

It is really mean of miserware to delete those scripts and not restoring them when uninstalling their governor.

[mikewhatever]

Yes, it's not nice. Did your command work? Is 99 a prefix number, so that the final file name becomes '99ondemand', or 'S99ondemand'?

[nikhilbhardwaj]

Yes, it's not nice. Did your command work? Is 99 a prefix number, so that the final file name becomes '99ondemand', or 'S99ondemand'?

the final filename should become
S99ondemand
s stands for starting the service at that runlevel

[mikewhatever]

Wish I'd know that command before. I've copied and symlinked the files manually.

[Random_Dude]

I think i restored the scripts using these commands:

cd /etc/init.d
sudo update-rc.d ondemand defaults 99

It is really mean of miserware to delete those scripts and not restoring them when uninstalling their governor.

I've uninstalled granola and done this.
How to I know that everything is back to normal?

[Johnsie]

I try to avoid using Ubuntu on my netbook. It runs very hot and the fans are constantly on. Not impressed at having to go to websites and adjust config files to manage my computers heat. How do I know what I'm doing is correct? If my netbook breaks it's no big deal because netbooks are cheap, but I don't think I would ever use Ubuntu on a laptop again as I have had bad experiences with overheating and hard disk burnout in the past.

Neh, I'll just use the os and drivers that came with the machine because I know they work.

[ubunterooster]

A cpu churning at 1000 out of 2000 will use more power than one idle at 2000 (I think!)

True for me. (using a desktop and APC UPS)