On 02/21/2018 06:32 PM, Denis Heidtmann wrote:
I agree with the ESD idea. I set up my 'scope with an unshielded DMM probe lead spread across the desk in front of the keyboard. I can see very fast events in the few volt range, but what seems to trigger the wake from suspend are slower, lower events. No solid correlations, however. And the grounding does not seem to help. Might running the USB cable from the keyboard to the computer through a toroid help? (I would need a big toroid to pass the big USB plug.)
I'm shocked (pardon the pun) that grounding yourself did not help. I'm afraid I'm too much of a ones and zeroes guy to answer your question. On the other hand, I don't think a toroid will make things worse.
galen -- Galen Seitz [email protected] _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
