Once again after a restart the Haupauge unit was not seen by the backend.
The systems here are all upgraded to mythbuntu 12.04LTS and Myth .26.
I tried:
sudo usb_modeswitch -v 2040 -p 7501 -R
And had success. A “sudo shutdown -r now” with no sucess. In the past a power cycle of the devvice and the PC were required.