No keyboard in sysinstall in 6.0-BETA2

Joe Marcus Clarke marcus at
Sun Aug 7 21:14:05 GMT 2005

On Sun, 2005-08-07 at 09:36 -0700, Maksim Yevmenkin wrote:
> > Joe Marcus Clarke wrote:
> > 
> >> On Sat, 2005-08-06 at 19:08 -0400, Joe Marcus Clarke wrote:
> >>
> >>> I'm trying to install FreeBSD 6.0-BETA2 from CD on Dell Precision 380.
> >>> The machine has a PS/2 keyboard on it.  The keyboard works fine in the
> >>> BIOS, and at the Booting... prompt.  However, once sysinstall comes up,
> >>> the keyboard is dead.  Nothing I type will be accepted.  The machine
> >>> does not appear to be panicked or hung.
> >>>
> >>> I switched from vidconsole to comconsole, and sysinstall works, so
> >>> perhaps this has something to do with the new keyboard mux?
> >>>
> >>> Dmesg is at
> >>
> >>
> >>
> >> More news on this.  After getting 6.0-BETA2 installed from the serial
> >> console, I found that _any_ input on the PS/2 port causes the machine to
> >> lock up hard.  I can break into the debugger, but as soon as I hit any
> >> key on the PS/2 keyboard, the machine locks up. I can't type anything
> >> (even from the serial console).  The only way out is to do a hard reset.
> >>
> >> I've tried building a custom kernel and disabling apic and acpi.
> >> Nothing will get 6.0 to work with any locally attached keyboard.
> >>
> >> I also found a CD of 5.4-RC3, which boots perfectly on this machine with
> >> working PS/2 and USB keyboards.  So, I thought maybe the kbdmux was the
> >> problem.  I reverted the kbd code to original RELENG_6 version (kbd.c
> >> rev. 1.43 and kbdreg.h rev. 1.17), and the keyboard works once again.
> >> Anything else I can try to debug this problem with kbdmux further?
> > 
> > 
> > i doubt kbdmux(4) is your problem. according to the dmesg you have 
> > posted you dont seem to use/load kbdmux(4) driver. it is highly unlikely 
> > that my changes in /sys/dev/kbd/ cause this. kbdmux(4) is not default 
> > keyboard and, at this point, one must configure/load it by hand. my 
> > guess would be that you, perhaps, have some sort of interrupt routing 
> > problem or something like it.
> actually, now i'm confused. as you stated you have reverted 
> /sys/dev/kbd/kbd.c and /sys/dev/kbd/kbdreg.h. are these only files you 
> have reverted?

Yes, the only two.  The rest of sys is 6.0-BETA2.  I never tried loading
the kbdmux module, and test the keyboard.  I have a 6.0 laptop, and I've
never had problems with kbd, and I've never had to load the mux there.

> i think, i can rule out /sys/dev/kbd/kbdreg.h - this just add a 
> prototype for kbd_find_keyboard2().
> so this leaves only /sys/dev/kbd/kbd.c. the only change here was new 
> kbd_find_keyboard2() function and change to the original 
> kbd_find_keyboard() function. kbd_find_keyboard2() function is almost 
> the same as the original kbd_find_keyboard() function. the only 
> difference is that kbd_find_keyboard2() accepts one extra parameter that 
> specifies starting index for search. it also checks the index to make 
> sure it is within valid bounds. naturally, kbd_find_keyboard() can just 
> call kbd_find_keyboard2() with starting index of 0 to emulate old 
> behavior. unless i screwed up here, i do not see how this would break 
> anything.
> also, one thing i noticed in your dmesg output
> atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
> atkbd0: <AT Keyboard> flags 0x3 irq 1 on atkbdc0
> atkbd: the current kbd controller command byte 0065
> atkbd: keyboard ID 0xffffffff (1)
> kbd0 at atkbd0
> kbd0: atkbd0, AT 84 (1), config:0x3, flags:0x3d0000
> atkbd0: [GIANT-LOCKED]

This output is after reverting to pre-kbdmux code.  My keyboard is an
IBM 105-key QWERTY keyboard (model KB-9910).


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