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Fix Blackwell GPU driver: open kernel modules, bump pin to 595

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The gpu role pinned nvidia-driver-580-server (proprietary kernel
modules). Those install and load cleanly on the RTX PRO 6000, but the
GPU never initialises: NVRM fails at RmInitAdapter (0x22:0x56:897) and
nvidia-smi reports "No devices were found". Blackwell (10de:2bb5)
requires the open kernel modules.

- defaults/main.yml: nvidia-driver-580-server -> 595-server-open.
  The "-open" part is the actual fix and is version independent. 595 is
  the newest -server branch in the 24.04 archive (610 is desktop only);
  projektplan §5.3 asked for the branch to be re-checked and pinned at
  install time, which had not happened yet. Caveat noted in the file:
  595 ships from multiverse, 580/590 from restricted.
- tasks/main.yml: install_recommends: false, keeps nvidia-settings and
  its GTK chain off a headless server (~65 packages).
- manuals/20260714-nvidia-driver-install.md: same command, documents
  the open-module requirement and the failure signature.
- SETUP.md: tick off the completed OS install steps.

Verified on phy-z-srv-gpu01: driver 595.71.05, CUDA 13.2, RTX PRO 6000
Blackwell at 00000001:5C:00.0 with 97887MiB visible, no NVRM errors in
dmesg, single DKMS version registered.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
CubelaPetar
2026-08-31 09:30:02 +02:00
co-authored by Claude Opus 5
parent 3160c6ca28
commit e7ef29c5d5
4 changed files with 25 additions and 12 deletions
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server/phy-z-srv-gpu01/manuals/20260714-nvidia-driver-install.md
+10 -4
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@@ -18,13 +18,19 @@ Search for available drivers for your GPUs:
sudo ubuntu-drivers devices
```
Install the driver pinned. The RTX PRO 6000 (Blackwell) needs **driver >= 580**;
use the `-server` variant and prefer a pinned install over `ubuntu-drivers autoinstall`
so the choice is explicit and reproducible (re-check for a newer branch at install time):
Install the driver pinned. The RTX PRO 6000 (Blackwell) needs **driver >= 580**
and **only works with the open kernel modules** — the proprietary ones load but
fail at `RmInitAdapter`, leaving `nvidia-smi` with "No devices were found".
Use the `-server-open` variant and prefer a pinned install over
`ubuntu-drivers autoinstall` so the choice is explicit and reproducible
(re-check for a newer branch at install time):
```bash
sudo apt install -y nvidia-driver-580-server
sudo apt install -y --no-install-recommends nvidia-driver-595-server-open
```
`--no-install-recommends` keeps `nvidia-settings` and its GTK dependency chain
off this headless server.
> Note: do **not** additionally install `cuda-drivers` from the NVIDIA repo —
> that would mix the Ubuntu-archive driver with the NVIDIA-repo driver and the
> two can conflict. Pick one source; we use the Ubuntu archive.