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Benni12345678
n00b
Joined: 08 Dec 2024
Posts: 23
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 Posted: Wed Jun 04, 2025 1:35 pm Post subject: new blackwell gpus (nvidia rtx 5060, 5070, 5080, 5090 etc) |
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Hi there, currently, if one would just install nvidia-drivers, one would get an error that the device is not supported.
On order to remove that one has to use at least the driver version 575.57.08, which is currently under ~arch, i.e. the package needs currently to be unmasked with a file naming the package in the /etc/portage/package.accept.keywords directory.
However, this is not enough.
For blackwell, one must apparently also activate the useflag kernel-open (write it in /etc/portage/make.conf).
I recieved that tip with the useflag from the nvidia developer forum. Then the card works like a charm.
But one also has to set
TORCH_CUDA_ARCH_LIST="12"
CUDAARCHS="12"
for that card and then re-
emerge uUDN world
for the new cuda hardware. |
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Ionen
Developer
Joined: 06 Dec 2018
Posts: 2933
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| Posted: Thu Jun 05, 2025 12:10 am Post subject: |
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Blackwell cards are also supported by current stable nvidia-drivers-570.153.02 (575 is an experimental "new feature" branch and is not needed to get support for the latest cards).
It can be easy to miss, but the bit about kernel-open is also in the README.gentoo that is displayed when you first emerge nvidia-drivers, and can later be read at /usr/share/doc/nvidia-drivers-*/README.gentoo*: | Code: | Be warned that USE=kernel-open may need to be either enabled or
disabled for certain cards to function:
- GTX 50xx (blackwell) and higher require it to be enabled
- GTX 1650 and higher (pre-blackwell) should work either way
- Older cards require it to be disabled |
The USE description also mentions blackwell if users happen to look at these.
In the future kernel-open will likely become default, albeit given it breaks old cards we've been leaving it alone for now (tend to be worse to break existing configurations than break new ones where users will go read documentation if something does not work rather than wonder why it suddenly broke and file a bug -- albeit ebuild could use supported-gpus.json to auto-detect that kernel-open will not work for old cards and loudly warn or abort when do a potential switch). |
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