Re: USB issues -- dodgy motherboard?

On Thu, 8 Apr 2004, Nik Clayton wrote:

> On Thu, Apr 08, 2004 at 11:55:41AM +0200, Bernd Walter wrote:
> > On Wed, Apr 07, 2004 at 07:32:59PM +0100, Nik Clayton wrote:
> > > On Tue, Apr 06, 2004 at 10:45:22AM -0700, Doug White wrote:
> > > > I have an IBM machine at work with this southbridge and it happily talks
> > > > to a Lexar usb key, so I suspect interrupt problems.
> > > >
> > > > Have you tried it after booting with ACPI disabled?
> > >
> > > I just tried with
> > >
> > >     hint.acpi.0.disabled="1"
> > >
> > > in /boot/device hints.  The boot got this far through the process:
> > >
> > >     [...]
> > >     uhci0: <VIA 83C572 USB controller> port 0xc000-0xc01f irq 10 at device 7.2 on pci0
> > >     usb0: <VIA 83C572 USB controller> on uhci0
> > >     usb0: USB revision 1.0
> > >     uhub0: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
> > >     uhub0: 2 ports with 2 removable, self powered
> > >
> > > and then hung.  I left it for five minutes, no activity, and no response
> > > on the keyboard, so I hit the reset button.  For reference, the next
> > > lines in the boot sequence with ACPI enabled are:
> >
> > >     uhub1: Atmel Standard USB Hub, class 9/0, rev 1.10/3.00, addr 2
> > >     uhub1: 4 ports with 4 removable, self powered
> >
> > So here is the difference - the Atmel hub don't show up in the problem
> > case.
>
> Not exactly.  The machine locked solid before it printed the probe line
> for the Atmel hub.  Trying to drop to the debugger did nothing, no
> response to Caps-Lock keys, and so on.
>
> > It's having problems with the connected hub device.
> > Is this 100% reproduceable or just from time to time?
>
> I only tried booting with ACPI disabled once.  Without the line
>
>     hint.acpi.0.disabled="1"
>
> in /boot/device.hints, the system boots fine, but plugging in USB
> devices does nothing -- my original message, at
>
>     http://lists.freebsd.org/pipermail/freebsd-current/2004-April/025164.html
>
> has more details.
>
> With that line (following a suggestion to disable ACPI) the system hangs
> at boot.
>
> > Does the hub really have it's own power supply as it claims?
>
> Yes.  The hub is integrated in to the monitor.  Note, however, that I'm
> seeing problems with devices plugged in to the motherboard's USB ports,
> *and* the hub's USB ports.
>
> > Please retry with a USB_DEBUG kernel - in case of a broken device the
> > probing may take serveral minutes - maybe we should give some output
> > without USB_DEBUG too in this case.
>
> Will do.

Silly question: Are you running with the latest firmware for your
motherboard?

Regards,
Andy

> Andre Guibert de Bruet | Enterprise Software Consultant >
> Silicon Landmark, LLC. | http://siliconlandmark.com/    >