i usually work on my Acer M5-481TG with Windows 8 x64 and recently installed Ubuntu 12.10 (x64) alongside with it. Unfortunately, the battery-life is roughly one and a half hour - which apparently is disasterous, compared to the 5-6 hrs it runs under Windows. The whole laptop gets quite hot and the fans keep running like crazy all the time.

I though it might be the GT64M graphics card that causes this, but after checking the switcheroo-logs, the integrated solution is active (as intended).

root@nubuntu:~# cat /sys/kernel/debug/vgaswitcheroo/switch
1: DIS: :Pwr:0000:01:00.0

I've no clue what might be causing this. Besides: Neither the touchpad, nor the display-brightness-keys work properly.

Any suggestions?


try installing/looking into bumblebee, I had this issue, its running everything with the Nvidia card, but Bumblebee can control it so you use integrated graphics.

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  • Can you provide more information, or at least a link, for Bumblebee? – Eliah Kagan Feb 8 '13 at 22:53
  • Thanks for your response. I've now installed Bumblebee (even though I thought PRIME would cover it already) as well as Jupiter and used the PowerTop-tweaks. However, the battery life is said to be roughly 4hrs and the fans aren't exactly silent, meaning that there must still be some power-consuming stuff running in the background. Any other suggestions? – user1004816 Feb 9 '13 at 10:39

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