In article <20001105102027.A20349@pyy.jmp.fi>,
Jukka Marin <jmarin@pyy.jmp.fi> wrote:
> On Sat, Nov 04, 2000 at 07:59:10PM +0000, David Brownlee wrote:
> > 	If you have time, try an anoncvs tree of between 1.4 and 1.5
> > 	to identify when the problem was introduced...
> 
> It's a bit painful over a 33600 bps modem link.. ;-)   Especially when I
> don't know which file might be to blame - is it an APM problem (even
> though disabling APM support in kernel does not help) or something else?
> 
> How do the contrast/volume adjustments, status displays etc. work?  I
> would think the keys cause some special interrupts which run BIOS routines
> or something like that.  Or maybe not..
> 
> (I want to run 1.5 because 1.4 had no support the the Aviator WLAN cards..
> and the audio driver in 1.5 seems to work better, too.)

it might be the bios trampoline code.

christos