I tried this nvidia 331 in NVIDIA GT218 [NVS 300] card, and X fails to start too, after a buggy splash.
When you installed nvidia-331, it installed nvidia-prime too, and I think after reboot, nvidia card is the default by nvidia-prime, instead of your Intel HD Graphics 4400.
So, maybe this bug is not specific to your hardware, maybe it is duplicate of bug #1267442
I tried this nvidia 331 in NVIDIA GT218 [NVS 300] card, and X fails to start too, after a buggy splash.
When you installed nvidia-331, it installed nvidia-prime too, and I think after reboot, nvidia card is the default by nvidia-prime, instead of your Intel HD Graphics 4400.
So, maybe this bug is not specific to your hardware, maybe it is duplicate of bug #1267442