[Bug 58914] Cannot start Radeon driver: "drmOpenByBusid: drmGetBusid reports " no bus ID

https://bugs.freedesktop.org/show_bug.cgi?id=58914

--- Comment #4 from David Hagood david.hagood@gmail.com --- I cannot say with rigor that it did work with older kernels, as prior to upgrading to Ubuntu 12.4 I was running the non-Free fglrx drivers (forgive me RMS for I have sinned....)

Bisecting is hard, because I am using many of the features of the newer kernel now, and backtracking would be difficult. But if you can suggest a version to test I can start.

I have seen other people running the Intel drivers reporting this same sort of error (the missing busID in the drmGetBusid call), and they thought it was a race condition (hence putting the driver into the initrd, which the Intel driver folks said fixed their problem).