I installed Mint 14 about 3 days before on my HP-DV3, my laptop has two graphic cards, an ATI Radeon and a intel one, previously when I was windows 7 each time I was on AC power the ATI one was in use, as soon as I unplug the cord graphic card been automatically switched to Intel one and therefore there was a huge benefit on power saving and battery lasts about 45 minute more than now. How can I achieve this in Mint?
Other question I read an update to 14.1 have been relased, I checked the updater and it says my OS is up tp date but it still shows me in system monitor that it is not
Thanks for helping me out
P.S: Is there something like safe remove in wondows for removing my USB hard drives? or I just can unplug the external hards?