Nvidia documents cause as a known issue: Driver fails to initialize when MSI interrupts are enabled. (Xorg.0.log contains: The NVIDIA kernel module does not appear to be receiving interrupts generated by the NVIDIA graphics device.)
Suggested fix is to disable MSI interrupts with following option for Nvidia kernel module:
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NVreg_EnableMSI=0
My question is then: what is the best way to set this option for the nvidia module? I would like to make any changes manually since I have had to SSH into machine a couple of times to deal with these nvidia/GUI hangs at boot, so need to be able to remotely undo whatever I try.
I see that there is a file /etc/modprobe.d/display-driver.conf linked to /etc/alternatives/display-driver.conf, which appears to load the nvidia module:
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install nvidia /sbin/modprobe nvidia-current $CMDLINE_OPTS
Not sure where CMDLINE_OPTS is coming from, and whether I should just add my option to this line?
Thanks for suggestions!