You have been subscribed to a public bug:
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)
** Affects: nvidia-graphics-drivers-535 (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment dgx hybrid jammy multigpu nvidia
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Ubuntu desktop does not appear on DGX Station A100 discrete GPU by default
https://bugs.launchpad.net/bugs/2033418
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which is subscribed to nvidia-graphics-drivers-535 in Ubuntu.
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