Can you try with the last updates and the -tv6 driver, to see if the mode issue is resolved?
If the crashes are avoided with BusType PCI, the issue is probably the flaky agp support seen by many people.
Can you try with the last updates and the -tv6 driver, to see if the mode issue is resolved?
If the crashes are avoided with BusType PCI, the issue is probably the flaky agp support seen by many people.