External monitor and CUDA works fine as long as I plug and unplug egpu only with the laptop turned off.
I can confirm that - a switch between the integrated and external GPU requires a logout from the current session, even if X11 is used in both scenarios. Not a big issue for me, since I don't unplug the laptop anyway. But definitely something to keep in mind if you need to plug the Razer box in and out on the fly.
Dell XPS 13 9300 (2020) / Razer Core X Chroma / ZOTAC GAMING GeForce RTX 2080 SUPER Triple Fan / Fedora Release 33 @ 5.9.11-200.fc33.x86_64
Interesting that CUDA works even on wayland session with hot plug/unplug, but only one time.
Not plugged:
[[email protected] ~]$ nvidia-smi NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.
Plug in - cuda works fine:
[[email protected] gprMax]$ nvidia-smi Fri Dec 4 11:19:46 2020 +-----------------------------------------------------------------------------+ | NVIDIA-SMI 455.45.01 Driver Version: 455.45.01 CUDA Version: 11.1 | |-------------------------------+----------------------+----------------------+ ...
Unplug:
[[email protected] gprMax]$ nvidia-smi Failed to initialize NVML: Unknown Error
Plug-in again:
[[email protected] gprMax]$ nvidia-smi No devices were found
Not really problem for me, for now, but maybe somehow interesting issue.
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
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I haven't made much progress on my build of late (busy with other stuff), but a large percent of my problems by just for upgrading to a stable kernel above 5.6 because of all of the thunderbolt and usb updates in that kernel build. Currently I am running 5.8.12. The latest "LTS" kernel is 5.4.xxx , which doesn't include a lot of these fixes (I think). May guess is that we will have to wait until Ubuntu 22 (and the equivalent in its Mint/Debian/variants) before you can just out of the box depend on thunderbolt in linux with little-to-no-modification
non progredi est regredi. Dell XPS 15 9500 w/ Intel i7-10875H + GTX1650, Razer Core X Chroma w/ NVIDIA FE GTX1080 Ti
@theovergrad, my personal experience with the Core X Chroma is that the usb weren't usable. They were unreliable, and constantly disconnecting.
I did some research and it seems to be a bandwidth issue (even on windows). The solution for me was to return it and get a Core X (without usb) and buy an usb hub.
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
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