Has "machdep.allowaperture=2" in
/etc/sysctl.conf been set?
Code:
#kern.watchdog.period=32 # >0=Enable hardware watchdog(4) timer if available
#kern.watchdog.auto=0 # 0=Disable automatic watchdog(4) retriggering
machdep.allowaperture=2 # See xf86(4)
#machdep.apmhalt=1 # 1=powerdown hack, try if halt -p doesn't work
#machdep.kbdreset=1 # permit console CTRL-ALT-DEL to do a nice halt