Re: USB keyboard

[Michael Neumann <mneumann@xxxxxxxx>]

Stefan Johannesdal schrieb:
> Sepherosa Ziehau wrote:
> > On Tue, Sep 9, 2008 at 8:59 PM, Stefan Johannesdal
> > <stefan.johannesdal@gmail.com> wrote:
> >  
> > > Hi!
> > >
> > > I have encountered a slightly annoying problem. When using my USB 
> > > keyboard
> > > with a SMP enabled kernel it simply won't work and I have to plug my 
> > > old PS2
> > > keyboard back in and reboot to get a working keyboard. With a UP 
> > > kernel the
> > > USB keyboard works as it should.
> > >
> > > Any ideas?

This could be related to the following patch:

http://www.dragonflybsd.org/cvsweb/src/sys/bus/usb/usb.c?rev=1.49&content-type=text/x-cvsweb-markup

Please try to set the following tunable at boot-time:

  hw.usb.hack_defer_exploration=0

Regards,

  Michael