I've been using Linux for quite a while in everyday computing and programming. But now i got this new laptop with amazing battery life on windows which runs pretty cool even while gaming. But for some reason on Ubuntu I get like 1/3 battery life and it gets hot even while browsing the web.
I have the proprietary drivers for radeon, but I'm thinking about upgrading from Ubuntu 12.04 to 14.04, and I would like to know how can I use only the Intel graphics and have radeon always turned off? Since I do not need the discrete graphics on Ubuntu and I'm pretty sure my problem is related to the radeon sucking up my battery and generating heat.
My laptop technical specifications are:
- Dell latitude 3540
- Intel core i7 4500U (with Intel hd4400 graphics )
- Ati Radeon HD 8850m with 2GB GDDR5 VRAM
- 8 GB DDR3L @1600mhz
- Toshiba 256gb SSD
- Ubuntu 12.4.3
If you need any additional info, please tell me :)