I just wanted to verify that I just did not wait long enough for gdm3 to start. I reinstalled linux-image-4.9.0-6-amd64 and now the issue went away! So it seems to be some sort of race condition, whatsoever. I booted at least five times now without a single problem.
- Bug#898074: linux-image-4.9.0-6-amd64: gdb3 fails to star... Kevin Bube
- Bug#898074: Maybe some more information on this bug Matthieu Dubuget
- Bug#898074: Confirming gdm bug with kernel 4.9.0-6 Magnus Wallin
- Bug#898074: Confirming that it seems to be solve... Matthieu Dubuget
- Bug#898074: linux-image-4.9.0-6-amd64: gdm3 fails to... Kevin Bube
- Bug#898074: linux-image-4.9.0-6-amd64: gdm3 fail... Magnus Wallin
