On Wed, 16 Nov 2005, Troy Dawson wrote:
> [log in to unmask] wrote:
> > When I upgraded to the 2.6.9-22.0.1.ELsmp kernel
> > on two separate Sun w2100z workstations
> > I found that both the USB mouse and keyboard failed
> > to be recognised.
> > If I boot into the non smp 2.6.9-22.0.1.EL kernel or the 2.6.9-22.ELsmp one
> > both devices work fine.
> > 
> > On booting 2.6.9-22.0.1.ELsmp kudzu detects a
> > hardware change but I can't interact with it as
> > the keyboard doesn't work!
> > I can however ssh into it and when I then run kudzu it wants to
> > remove the configuration for the NEC Corporation USB, NEC Corporation USB 2.0
> > and Sun Microsystems, Inc. Type 6 Keyboard devices.
> > 
> > Any pointers as to how I can trouble shoot this further?
> > 
> 
> My first thing would be to check and see if 'legacy usb' is turned on in 
> the bios, and if it is, turn it off.  I've lost count of how many things 
> this has fixed.
> 
In the BIOS under chipset configuration there is a
USB Device (Enable or Disable these USB NEC720101)
and 
USB 2.0 Device (COntrol USB 2.0 functionality),
both options are set to enabled.

I've turned these off once before (a different issue)
and it meant I could only use the (USB) keyboard at the OS level
so I'm reluctant to turn them off.
Though I suppose I could try it and if it goes wrong
reset the CMOS via jumpers.
> If that didn't fix anything, then here are some questions.
>    Which kernel did you upgrade from?
>    Is it x86_64 or i386 (or i686)?
x86_64.

I've several of these w2100z workstations, this issue only
seems to affect those with dual 244 processors and not
those with dual 252s.
> 
> Troy
> 
cheers,
Ronnie