Re: Hotplug USB mouse bugs in 2.4+swsusp

Vojtech Pavlik (
Mon, 14 Jul 2003 22:01:55 +0200

On Fri, Jul 11, 2003 at 09:16:13AM -0700, Eric Altendorf wrote:

> 1)
> The mouse, under normal operation at times of heavy CPU or disk usage,
> will be spontaneously lost. No messages are issued. Physically
> unplugging and re-plugging the mouse restores it.

Can be anything, from lost interrupts to noise on the USB connection.
Need more data.

> 2)
> No matter what I've tried, after switching to using hotplug
> (previously I had been using the 2.5 kernel w/o the hotplug daemon),
> I have been unable to get the internal pointer multiplexed into
> /dev/input/mice. USB mouse shows up under /dev/input/mice and
> internal pointer shows up under /dev/psaux only.

Not possible. They're handled by the very same code in 2.5.

> 3)
> After suspend & resume, USB mouse is gone. Physically replugging it
> doesn't help. /etc/init.d/hotplug restart fixes it.

No idea here. Too many scripts involved.

Vojtech Pavlik
SuSE Labs, SuSE CR
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at