boot on key press

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   I have the bios set to to boot from a USB keyboard key press.
I have 2 computers and I use a USB 2.0 KVM to switch the mouse and keyboard between them.
When I shutdown my ASRock computer, it restarts instead of shutting down.
Only the 1st time, it shuts down the 2nd time.

I have another problem but I haven't figured out the pattern.
Sometimes it doesn't boot when the keyboard is used.
I think has to do if I use the other computer while the ASRock is off.

Has anyone run into this?

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bjlockie Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 17 Nov 2015 Status: Offline Points: 1394	Post Options Post Reply Quote bjlockie Report Post Thanks(0) Quote Reply Topic: boot on key press Posted: 02 Feb 2017 at 9:00pm
	I have the bios set to to boot from a USB keyboard key press. I have 2 computers and I use a USB 2.0 KVM to switch the mouse and keyboard between them. When I shutdown my ASRock computer, it restarts instead of shutting down. Only the 1st time, it shuts down the 2nd time. I have another problem but I haven't figured out the pattern. Sometimes it doesn't boot when the keyboard is used. I think has to do if I use the other computer while the ASRock is off. Has anyone run into this?
	ASRock B450M Pro4 16 GB DDR4, 500 watt PS, AMD Ryzen-5 5600, NVidia GTX-1050, 5.70 BIOS

wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 03 Feb 2017 at 3:32am
	The KVM switch is the likely culprit, as it sound like it isn't passing the signal through properly. Can I assume the wake on KB works w/o the switch in the middle? #2. What KB specifically?

bjlockie Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 17 Nov 2015 Status: Offline Points: 1394	Post Options Post Reply Quote bjlockie Report Post Thanks(0) Quote Reply Posted: 03 Feb 2017 at 9:33am
	Zalman ZM-500 keyboard. Yes it works without the switch. Is there any way to capture what the switch is sending?
	ASRock B450M Pro4 16 GB DDR4, 500 watt PS, AMD Ryzen-5 5600, NVidia GTX-1050, 5.70 BIOS