Re: [gentoo-user] re: trouble with USB mouse on laptop

[Peter Humphrey]

On Friday 08 August 2014 11:11:29 Alexander Kapshuk wrote:
> On 08/08/2014 10:46 AM, J. Roeleveld wrote:

--->8

> > Alternatively, disable USB powersaving:
> >
> > # for i in /sys/bus/usb/devices/*/power/autosuspend;
> >
> >     do echo 2 > $i;
> >     done
> >
> > # for foo in /sys/bus/usb/devices/*/power/level;
> >
> >   do echo on > $foo;
> >   done
> >
> > --
> > Joost
>
> Thanks very much. I did use an A4Tech USD mouse on this laptop as well
> with similar symptoms:

--->8

> I will google it further and give your suggestion a try.

I'm sure Joost is right. I was setting up power saving on my Thinkpad last 
month, and I noticed the same as you. I think I set 
AUTOSUSPEND_USBID_BLACKLIST in /etc/laptop-mode/conf.d/usb-autosuspend.conf to 
prevent the mouse being switched off while on battery. I don't have the laptop 
to hand at the moment to check.

If that is the cause you're looking for, it won't happen while on AC. Does it?

(I seem to be writing backwards this morning. I hope it's clear enough.)

-- 
Regards
Peter