"Arny Krueger" wrote in message
...
"Pooh Bear" wrote
in message
Arny Krueger wrote:

"Robert Morein" wrote in message


2. If the computer hibernates and is restored from
hibernated state, the midi in connection breaks. I
thought this was a problem with my midiman usb
converter, so I switched to a Creative Audigy ZS game
port. However, the same happens.

Simple, really, turn the hibernate function off.
If you need to put something in stand by, go to your
energy settings and just let the monitor swith off
after a while.

I would like to use hibernate, because the difference in
power consumption is quite substantial. For example, my
2.6g P4 draws 110 watts operating, 70 watts standby, and
0 watts hibernating.

You do understand that when a machine hibernates, it
pretty well breaks all connections with outside I/O
devices, right?

Anything that needs a 'sync' is going to lose it for sure.

Agreed.
Agreed, but MIDI is an asynchronous interface, a unidirectional asynchronous
bit stream at 31.25 Kbits/sec. with 10 bits transmitted per byte, with a
single start bit, 8 data bits, and a singles stop bit. This is identical in
format to an ANSI serial data stream.

Since it has a built in sync signal in every byte, it does not require a
continuous datastream. Each time a MIDI controller is actuated, it generates
a fresh sync at the start, and every byte thereafter. There is nothing
inherent in the protocol that would make it difficult to recover from a
hibernate, or even a physical disconnection. One can unplug and plug a MIDI
keyboard, with no ill effects.