Thank you for your quick reply. Unfortunately this does not answer my question. I had already been to this link, and it does not deal with MacBook Pro with TouchBar controls/no power button. Is there something I missed there?
My problem is that I was moving from sleep mode, hit the space bar, and the login page displayed. The cursor was blinking in the password entry space, but my keystrokes would not appear. As noted above, my cursor would move, but that was all it did. it did not result in any changes in the TouchBar. I know this is normal until login--but I can't login because the keyboard is not responsive. And I cannot turn off the computer to reset, because there is no power button.
I figure there MUST be a simple answer, but I cannot find it in Apple Discussion or the Catalina missing manual, or any Google search I have so far come across.