On 6 Jun, 12:28, "jameshanle...@yahoo.co.uk"
<jameshanle...@yahoo.co.uk> wrote:
<snip>
>
> ps2 keyboards don't support USB.
> USB keyboards do support ps2 or USB.
>

note- in the past, some have disagreed with my statement about USB
keyboards supporting both.

nevertheless, it has been my experience that any usb keyboard I have
ever had, however cheap, has supported both.

so maybe it's possible to get unlucky.. But even the person that last
said "not necessarily", i.e. said that some only support USB, He could
not name or even recall a usb keyboard that did not support ps2.

you can find out easily enough.. Do the test without the KVM switch.

You will need to buy a usb-ps2 adaptor, not just a ps2-usb adaptor.
and good luck there 'cos some are faulty!

Now,. the following is far from firm..
And on a very different note

as a rule of thumb that applied in my life regarding this problem! If
you see slightly bigger cheap green ones on ebay, avoid them, they are
faulty. They worked in one machine but not another. I Got little red
ones, they worked. I would get smaller ones of any colour.. Just not
specifically those big green bastards.


I am still talking about the same type of adaptor.. What one would
call the little ones. Just some are made in one factory, oter in a
different ones.
..
avoid
http://www.chemical-records.co.uk/st...5/SK504367.JPG
it's bigger and green.
These big green bastards are all over the place
http://img399.imageshack.us/img399/4...adaptordw8.jpg
I recognise it..
They all must be from the same company.

This is a different design , prob made by somewhere else, it may work
http://www.cablesdirect.com/prodimages/USB-PS2F_LR.jpg

these ones worked nicely
http://www.maplin.co.uk/module.aspx?...=33543&doy=6m6

Just don't buy a pack.
'cos I bought a pack incase one was faulty(that way I could
troubleshoot better).. it turned out they were all as bad as each
other. That was from ebay.

And in the pack of slightly differently designed ones. the slightly
smaller ones.. They all worked. They weren't quite as cheap though.
If one works, then buy a pack of identical ones.