bbswitch does not work on ASUS A93S

Question

I've tried the suggestions given in an earlier answer to a similar question (see elsewhere on AskUbuntu), but it does not work.

Both

lsmod | grep nouveau
lsmod | grep bbs

come up empty.

I am running Precise on an ASUS A93S and installed bbswitch-dkms from the bumblebee/stable repository.

Help would be appreciated!

Answer 1

Apparently, it is not enough to just install bbswitch-dkms. Maybe a manual initramfs afterwards will do the trick. What does definitely do the trick, however, is to follow the guide on the Ubuntu Wiki and do the following, if you just want bumblebee for power saving:

sudo apt-get install --no-install-recommends bumblebee

After I did that, the power meter dropped from 45W to 30W!