I have now done further testing and can confirm that this is more than just upgrade issue.
I have done the following tests:
A) Fresh 19.04 Desktop Install
A.1) Boot - Ubuntu 19.04 Desktop CD-ROM image via USB - Mouse / Cursor ok
A.2) Do clean disk install of 19.04 Desktop (Minimal Install Option selected) & Reboot. On reboot - Mouse / Curser ok
A.3) Disable Wayland and reboot - Mouse / Cursor ok
A.4) Do in place upgrade to 19.10 & reboot - Mouse / Cursor - Stopped Working
B) Attempt Fresh 19.10 Desktop Install
B.1) Boot - Ubuntu 19.10 Desktop CD-ROM image via USB - Mouse / Cursor not visible
So I have unable to proceed with clean 19.10 install as there was no mouse cursor visible.
So problem is to upgrade related but a general one for 19.10 release.
Both my testing and Paul Bundt's was on server boxes:
Dell Server with Matrox G200 and Lenovo x3650 with Matrox G200.
I have now done further testing and can confirm that this is more than just upgrade issue.
I have done the following tests:
A) Fresh 19.04 Desktop Install
A.1) Boot - Ubuntu 19.04 Desktop CD-ROM image via USB - Mouse / Cursor ok
A.2) Do clean disk install of 19.04 Desktop (Minimal Install Option selected) & Reboot. On reboot - Mouse / Curser ok
A.3) Disable Wayland and reboot - Mouse / Cursor ok
A.4) Do in place upgrade to 19.10 & reboot - Mouse / Cursor - Stopped Working
B) Attempt Fresh 19.10 Desktop Install
B.1) Boot - Ubuntu 19.10 Desktop CD-ROM image via USB - Mouse / Cursor not visible
So I have unable to proceed with clean 19.10 install as there was no mouse cursor visible.
So problem is to upgrade related but a general one for 19.10 release.
Both my testing and Paul Bundt's was on server boxes:
Dell Server with Matrox G200 and Lenovo x3650 with Matrox G200.