simmo

@ich777 thanks again for all your help. With a bit more digging I have found that the card doesn't actually work with the 535 drivers either. nvidia-smi doesn't freeze (like it does with the newer drivers), but it does give "Unknown Error" results for some of the GPU power and clock readings. I even installed an older version of Ubuntu so I could try the 470 drivers and they give the same error results. So it looks like the card is faulty as you suggested. I have attached the output of "nvidia-smi --query" just in case anyone is interested. nvidia-smi-535.txt

@ich777 thanks for the fast reply. I mentioned at the bottom of my post that I can't run diagnostics with the P4000 and the nvidia driver installed as it calls nvidia-smi and so locks up the process. I have attached a new diagnostics.zip with the P4000 installed but without the nvidia drivers. If this is a hardware issue then it is very subtle. I can flash and verify the P4000's vbios, I can run the Unigine Superposition graphics benchmark repeatedly under Ubuntu, and I can run ollama to max out the P4000's VRAM - all with no stability issues and good temperatures. The only problem is when I try and use nvidia-smi. In fact, Deepseek-r1 running on ollama on the P4000 tells me that the minimum CPU requirement for the P4000 is a 4th gen or better i5 (Haswell or better). I'm using an i5-3450 which is 3rd gen (Ivy Bridge). Could this be true? I can't find this requirement in any of the NVIDIA documentation. I asked Deepseek as a bit of a joke. If it has actually diagnosed the problem, then my mind will be officially blown. mythback-diagnostics-20250803-0942.zip

Before getting into the detail, I'd like to thank everyone involved for all the hard work maintaining this plugin. I'm pretty sure my problem is with the NVIDIA drivers, not the plugin, but hopefully someone can point me in the right direction. I'm pretty new to unraid and trying to get a system up and running using old stuff I had lying around and a couple of cheap GPUs. I have two GPUs - a Quadro P2200 and a Quadro P4000. The P2200 works fine with all the NVIDIA drivers, but the P4000 is causing major headaches. With the P4000 installed, any attempt to query the card causes a single core on the CPU to max out at 100% and the process to freeze. I can't "kill" the process and have to force a reboot. For example "nvidia-smi --version" will cause the thread to lock up, and running the GPU statistics plugin causes the whole WebUI to lock up. By booting the same PC into Ubuntu 24.04.2 (and a with lot of trial and error) I have worked out that driver version 535 works with the P4000 and (I assume) can be compiled against the current kernel. The 570 and 575 drivers don't work with the P4000 on Ubuntu either. So my question is - is it possible for me to install driver version 535 outside of the plugin (or have 535 added into the plugin??). I have seen the recent posts requesting legacy drivers, but as I'm looking for 535 and not 470, I am hoping there is a "simple" workaround? I have tried searching this thread and have made various changes to the BIOS setting (CPU power states, UEFI etc) - none of which made any difference. I have also attached a diagnostics.zip - this is with the P2200 installed not the P4000 as diagnostics seems to run nvidia-smi which would freeze the thread. mythback-diagnostics-20250802-2330.zip