hybrid-graphics-linux team mailing list archive
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Re: Hello, and question
On Friday 25 April 2014 12:01:24 Tomas Neme wrote:
> Hi, I've been fighting to get decent battery life out of my laptop
> under *nix pretty much since I got it. I've got bumblebee installed
> and all looks like it should, but the machine still runs oddly hot.
> Is there some way of knowing what's going on, whether the nvidia
> adapter is actually off or what?
If it outputs something with ON, then you are wasting power. Otherwise,
if it outputs OFF, then you are OK. This is not a standard interface
by the way, it is provided by the "bbswitch" kernel module included
On Friday 25 April 2014 12:03:06 Tomas Neme wrote:
> here's lspci by the way:
> lacrymology@Roller:~$ lspci -vmk | grep -A 8 -B 2 VGA
> Device: 01:00.0
> Class: VGA compatible controller
> Vendor: NVIDIA Corporation
> Device: GF108M [GeForce GT 540M]
> Rev: ff
> ProgIf: ff
This is another way to detect whether your card is off or not. If the
card is on, you will see something other than "ff" for the Rev field.