[Info-vax] keyboard woes

[Stephen Hoffman]

On 2020-07-04 21:47:32 +0000, Robert A. Brooks said:

> On 7/4/2020 3:47 PM, Stephen Hoffman wrote:
> 
>> Don't ever hot-plug an OpenVMS PS2 keyboard. On at least some systems, 
>> that can damage the hardware.
> 
> Damage the keyboard itself, or the junk I/O port?

Junk I/O ports on Alpha. I've met several failed Alpha console ports, 
both failed PS/2 ports, and failed COM1 serial ports.

I'll look for one of the manuals that warns about console hot-plugging. 
 Did a quick scan through the DS15 docs and didn't see the reference.

> I've got a LK keyboard with a PS/2 connector that I connect to various 
> Windows systems with PS/2-to-USB dongles, and I've never had an issue; 
> perhaps I've
> just been lucky.

USB is much more tolerant. It's SCSI with random disconnects, after all.



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