[ltp] Re: T61, Lenovo quality, Linux pre-installed, alternatives

[Hendrik-Jan Heins]

Very strange,

I don't run any program on my finger scan device, and my bluetooth is
turned off, ut with that module loaded, I can not get anything lower
than C2.
unloading the module immediately causes the cpu to drop to C3.
I have this issue with kernel 2.6.24 and 2.6.25

Can there be a difference between X6# series here?

Hendrik-Jan


2008/4/23 Yves-Alexis Perez <corsac@debian.org>:
> On mer, 2008-04-23 at 00:30 +0200, Hendrik-Jan Heins wrote:
>  > For the power issue: "rmmod uhci_hcd"
>  > This removes the usb 1.1 driver and saves a bundle in power. Without
>  > this driver, you can get to C3 state; with it, you can get no further
>  > than C2.
>
>  I doubt that:
>
>  Linux hidalgo 2.6.25 x86_64 GNU/Linux
>  08:17:51 up 5 days, 11:05,  4 users,  load average: 0.07, 0.18, 0.29
>  corsac@hidalgo: lsmod | grep uhci
>  uhci_hcd               29088  0
>  corsac@hidalgo: sudo powertop -d | grep "C(0|1|2|3)"
>  C0 (cpu running)        ( 3,1%)
>  C1                0,0ms ( 0,0%)
>  C2                0,0ms ( 0,0%)
>  C3                7,4ms (96,9%)
>
>  Cheers,
>  --
>  Yves-Alexis
>