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Issue detecting second monitor when using nvidia proprietary driver

tw flag
Dan

I recently changed my NVIDIA drivers on my ubuntu 22.04 machine from Nouveau to nvidia-driver-525-open, as I needed a proprietary driver to use CUDA. While installing, I was told that UEFI secure boot required additional configuration, so I was invited to set a password, for "Enroll MOK" and "Change Secure Boot state" to enter on reboot. On reboot I found the "Enroll MOK" part but not the other, I typed my password here to enroll key.

After this everything has booted fine, except my second monitor plugged in via displayport (in pc) to HDMI (in monitor) is no longer detected. I assume this is due to the change in graphics card but I was wondering if there was a resolution which doesn't require a reversion to the nouveau drivers, as these aren't compatible with CUDA.

Thanks so much!

Terrance avatar
id flag
What video card do you have? The `nvidia-driver-5xx-open` will only work on specific NVIDIA cards. Have you tried the non-open driver?
Dan avatar
tw flag
Dan
I have an RTX 2060, I was actually just going through the CUDA installation and I think it prompted me to change to the non-open, which now appears to be the one in use. Now both monitors are working. Is there a general way to find our which would be permissible for a given card?
Terrance avatar
id flag
All the cards supported for those drivers are listed at https://www.nvidia.com/download/driverResults.aspx/196728/en-us/ under Supported Products
Dan avatar
tw flag
Dan
Thanks so much! :)
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