Re: Repeated USB disconnect and reconnect with Wacom Intuos3 6x11 tablet

[Greg KH <greg@kroah.com>]

On Tue, Dec 13, 2005 at 07:46:00PM +0100, Denny Priebe wrote:
> Hello,
> 
> I just want to report a strange observation that I've made while trying to
> setup my Wacom Intuos3 6x11 tablet:
> 
> When I use the tablet (e.g. press a button, move the pen) and do not have
> any process reading the provided data (e.g. there's no process reading 
> /dev/input/mouse0 and there's no process reading /dev/input/event5 in my 
> setup) the tablet disconnects from and immediately reconnects to the USB. 
> There's one pair of disconnect and reconnect each time I press a button or 
> use the pen. These disconnects and reconnects disappear as soon as there's 
> a process reading either /dev/input/mouse0 or /dev/input/event5 (mouse0 and
> event5 according to my setup).
> 
> I'm able to reproduce this with 2.6.15-rc5, 2.6.15-rc4, and 2.6.14.3,
> but haven't tried other kernels yet.

Sounds like a hardware problem, the kernel can't cause a device to
electronically disconnect itself like this.

I suggest plugging this into a different port, using a powered hub, or
checking that the cable is still good.

good luck,

greg k-h
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