On Mon, 7 Jul 2003 23:57:46 -0400 Carroll Grigsby <[EMAIL PROTECTED]>
wrote:

> On Monday 07 July 2003 03:49 pm, James Sparenberg wrote:
> > On Mon, 2003-07-07 at 16:13, Pierre Fortin wrote:
> > > Just a heads up...
> > >
> > > I have not fully analyzed this; but my HP 5550 (USB2.0) printers
> > > will not work if connected to a USB/PCMCIA port.  My camera,
> > > external HDs, etc, all work off the SIIG USB PCMCIA 4-port hub; but
> > > the printers will only work if connected to the laptop's builtin
> > > USB1.1 port.
> > >
> > > CUPS reports "Unable to open USB device "usb://hp/deskjet%205550":
> > > No such device", even after redoing the printer setup via
> > > http://localhost:631
> > >
> > > Just moving the cable from the PCMCIA to the builtin port allows
> > > queued jobs to print.
> >
> > Pierre,
> >
> >    Is it possible.. (and this is a real stab in the dark.) that the
> > printer doesn't recognize the hub as a real USB port?  So it doesn't
> > "activate".  I've got an Epson that does that no matter what OS is on
> > the other end.  When I boot the box with the printer connected to the
> > USB hub... I don't get all of the chugging and churning I normally get
> > when it's directly connected.  We got rid of the hub plugged it in
> > directly and ... poof it works. Go figure.
> >
> > James
> 
> I recall reading that some external USB hubs are not powered, and
> therefore are only usable with passive devices. That might explain
> James' problem, but probably not Pierre's.
> -- cmg

Yikes!  During testing, the power connector had fallen out of the PCMCIA
adapter (where's my epoxy..?); but that is not my problem since I've
rechecked...



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