Re: Magic SysRq +# in 2.4.9-ac/2.4.10-pre12

[Vojtech Pavlik]

On Wed, Sep 19, 2001 at 08:56:13AM -0700, Randy.Dunlap wrote:
> (and maybe earlier...)
> 
> Simple problems grow...
> 
> Keith Owens has already noted one problem in sysrq.c (2.4.10-pre12).
> 
> Beginning:
> 
> I have an IBM model KB-9910 keyboard.  When I use
> Alt+SysRQ+number (number: 0...9) on it to change the
> console loglevel, only keys 5 and 6 have the desired
> effect.  I used showkey -s to view the scancodes from
> the other <number> keys, but showkey didn't display
> anything for them.  Any other suggestions?

Most likely the keyboard scanning matrix doesn't allow that combination.
Quite a large number of keyboards doesn't allow multiple keys pressed
(except for shift, ctrl, alt, which are separate) at once.

-- 
Vojtech Pavlik
SuSE Labs