Re: usb mouse not responding after resume

From: Miklos Szeredi
Date: Mon Jul 13 2009 - 01:47:20 EST


On Fri, 10 Jul 2009, Alan Stern wrote:
> On Fri, 10 Jul 2009, Miklos Szeredi wrote:
>
> > Sometimes after resume the usb mouse plugged into my T60 notebook
> > isn't working. Unplugging and replugging it fixes the problem. A
> > keyboard is also plugged in, which works normally every time.
> >
> > This has been happening on and off from about 2.6.30-rc* but in
> > 2.6.31-rc* seems to be getting more frequent.
>
> Looks like something is wrong with the mouse itself.

Hmm, could well be, this is not a young mouse and had some problems
(fits of random movements) all of its life.

> > Here's the suspend-resume-replug part of the dmesg. Not sure if it is
> > enough, I'd be happy to provide more info.
>
> The log showed that the mouse disconnected itself during the suspend.
> But then after the resume it reconnected -- presumably this log shows a
> cycle where the mouse _was_ working afterward.

No it wasn't, if you look at the timestamps it reconnected only after
some time after resume. That is because when it wasn't working I
unplugged it and then plugged it back.

>
> Can you provide a similar log for a cycle where the mouse _didn't_
> respond afterward? It might not help much, however; most likely it
> will show that the mouse disconnects itself during the suspend and then
> doesn't reconnect.
>
> Have you tried plugging the mouse into a different USB port? It might
> help.

Okay, will try that and see if it helps. Maybe I should get a new
mouse too... :)

Thanks,
Miklos
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