In conclusion we found 2 different bugs.
1) If "restricted" is disabled, Update Manager won't know what driver to select, in which case it should simply comment out the Driver line in xorg.conf so that X.org can use an open source driver which works (or is supposed to work) with the card.
2) X.org defaults to the "nv" driver because the id of this specific nvidia card is included in nv's modalias file. The "nv" driver, at least in the version that we're shipping with Jaunty, doesn't seem to work well with this card (hence the black screen).
Problem 1 can be easily fixed in "Update Manager" while 2 should be fixed in "nv".
In conclusion we found 2 different bugs.
1) If "restricted" is disabled, Update Manager won't know what driver to select, in which case it should simply comment out the Driver line in xorg.conf so that X.org can use an open source driver which works (or is supposed to work) with the card.
2) X.org defaults to the "nv" driver because the id of this specific nvidia card is included in nv's modalias file. The "nv" driver, at least in the version that we're shipping with Jaunty, doesn't seem to work well with this card (hence the black screen).
Problem 1 can be easily fixed in "Update Manager" while 2 should be fixed in "nv".