Thank you, pavroo.
I tried innumerable times with two alternate drivers. You had an excellent idea there, but my exact driver was not to be found.
I even went as far as blacklisting the driver, and then trying a re-install through the terminal, but I had no luck. You may know, or know of, Kendall Weaver, CTO of Peppermint OS. (Peppermint OS is an excellent LXDE OS with a very supportive forum too.) Well Kendall said to me, some time ago, that there were problems with Toshiba and Linux, but he told me that things were improving with Toshiba over time.
That being said, pavroo, I believe I hit a Toshiba roadblock here!
Thank you, pavroo, for your time and research here. I actually learned quite a bit going through the steps of that post.