Previous comment is incomplete. I am attaching a couple of files from the working system:
* /etc/X11/xorg.conf - as works-XorgConf.txt
* /var/log/dpkg.log - as works-DpkgLog.txt
As I recall, I had worked myself into a state of one usable monitor and one all white monitor with primitive X cursor, but cursor about to move between screens. I don't know what that was about. When I left that state, the system suddenly working.
So as of today (actually, at least a couple of days ago), the cursor and displays are now working properly, but I don't know why.
Previous comment is incomplete. I am attaching a couple of files from the working system:
* /etc/X11/xorg.conf - as works-XorgConf.txt
* /var/log/dpkg.log - as works-DpkgLog.txt
As I recall, I had worked myself into a state of one usable monitor and one all white monitor with primitive X cursor, but cursor about to move between screens. I don't know what that was about. When I left that state, the system suddenly working.
So as of today (actually, at least a couple of days ago), the cursor and displays are now working properly, but I don't know why.