It sounds like the main problem therefore is the Nvidia X driver. It's refusing to light up HDMI without a custom config explicitly telling it to use "PCI:193:0:0". But this might be Nvidia's intended behaviour so I recommend checking the docs for solutions first:
https://us.download.nvidia.com/XFree86/Linux-x86_64/535.86.05/README/index.html And contacting Nvidia for help second. P.S. The Nvidia website recommends driver 460 for the A100. Also the installed driver version sounds like it's from nvidia-graphics- drivers-535 (desktop), but also there are some nvidia-graphics- drivers-535-server packages installed? So I wonder if this is just a bad choice of drivers for the hardware. ** Package changed: xorg-server (Ubuntu) => nvidia-graphics-drivers-535 (Ubuntu) ** Also affects: nvidia-graphics-drivers-535-server (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-535 in Ubuntu. https://bugs.launchpad.net/bugs/2033418 Title: Ubuntu desktop does not appear on DGX Station A100 discrete GPU by default Status in nvidia-graphics-drivers-535 package in Ubuntu: New Status in nvidia-graphics-drivers-535-server package in Ubuntu: New Bug description: The DGX Station A10 has various display options. The BMC provides an emulated device (Aspeed controller), a physical BMC controller (NVIDIA Quadro T1000 Mobile), and a discrete GPU card with 4 DisplayPort outputs (A100 SXM4 80GB). See the user guide[*] for a diagram. In a default Ubuntu Desktop 22.04 ('jammy') install, nothing appears on the A100 DisplayPort output. NVIDIA DGX OS - a derivative of Ubuntu - works around this by installing a service that generates an xorg config file dynamically based on the "OnBrd/Ext VGA Select" setting (aka "dmidecode -t 11"). I'll attach samples of those files here. Replacing the default Ubuntu xorg.conf file with the sample xorg-nvidia.conf file on a default Ubuntu Desktop install is confirmed to enable output. [*] https://docs.nvidia.com/dgx/dgx-station-a100-user-guide/getting- started-station-a100.html (Note: split from bug 2031367) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-535/+bug/2033418/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
