USB keyboard locking up on 7-RELEASE/amd64

Raphael Becker rabe at uugrn.org
Fri Apr 11 11:49:10 UTC 2008


On Wed, Apr 09, 2008 at 05:07:24PM -0500, H. Wade Minter wrote:
> The install went fine, but post-install I'm running into a problem  
> where the USB keyboard will just lock up.  I can still ping and SSH  
> into the system, but after about 2 minutes of activity, the keyboard  
> becomes nonresponsive.
 
As far I understood this is caused by the BIOS which emulates PS/2 
for USB keyboard and mouse. So FreeBSD double-detects your keyboard as
PS/2 by atkbd(c) and directly via USB. 

There is no Option in the (my) BIOS to disable this USB-PS/2 emulation.
Banning atkbd(c) and psm from the kernel worked for me. 

----------------------------------------------------
$ cat /usr/src70/sys/amd64/conf/DELL755 
# Kernel-Config for Dell Optiplex 755 / amd64
#
# From: Baldur Gislason <baldur at foo.is>
# To: freebsd-gnats-submit at FreeBSD.org
# Cc:  
# Subject: Re: usb/119509: USB flaky on Dell Optiplex 755
# Date: Mon, 4 Feb 2008 15:30:52 +0000
# 


include         GENERIC
ident           DELL755

nodevice          atkbdc          # AT keyboard controller
nodevice          atkbd           # AT keyboard
nodevice          psm             # PS/2 mouse
----------------------------------------------------

YMMV

Regards
        
        Raphael

-- 
Raphael Becker          <rabe at uugrn.org>          http://rabe.uugrn.org/
GnuPG:                E7B2 1D66 3AF2 EDC7 9828  6D7A 9CDA 3E7B 10CA 9F2D
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