It looks like Bus 0 & Bus 1 have the right drivers, if they're both the same as mine. (How do you know what bus they are, BTW?) And the information about them at the Events tab (though different from mine) don't seem different enough from each other to justify why one should work & the other should not.
It leads me back to the theory that they can't both be active at once. You tried a monitor w/o speakers. But did you uninstall both the Bus 0 & Bus 1 drivers under System Device & reboot while it was connected?
If only one comes back, then try installing that codec, but not into System Devices..