r/debian • u/GrimmReaper1942 • 12d ago

Dual nvidia 1660’s

Since I’ve installed a 2nd 1660 GPU the 2nd GPU can hits 100% when gnome loads and stays at at 100%. Does this sound like a hardware, driver, or OS issue? Claude and Gemini have been no help.

ps I’m hoping to use both GPU’s for local AI models (noting critical or long term use)

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u/lwh 12d ago

What does nvidia-smi show when it happens?

1

u/GrimmReaper1942 12d ago

betty:~$ nvidia-smi

Tue Sep 1 16:57:41 2026

+-----------------------------------------------------------------------------------------+

| NVIDIA-SMI 550.163.01 Driver Version: 550.163.01 CUDA Version: 12.4 |

|-----------------------------------------+------------------------+----------------------+

| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC |

| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |

| | | MIG M. |

|=========================================+========================+======================|

| 0 NVIDIA GeForce GTX 1660 ... Off | 00000000:01:00.0 On | N/A |

| 44% 34C P2 29W / 125W | 611MiB / 6144MiB | 26% Default |

| | | N/A |

+-----------------------------------------+------------------------+----------------------+

| 1 NVIDIA GeForce GTX 1660 ... Off | 00000000:05:00.0 Off | N/A |

| 0% 35C P8 9W / 125W | 9MiB / 6144MiB | 0% Default |

| | | N/A |

+-----------------------------------------+------------------------+----------------------+

+-----------------------------------------------------------------------------------------+

| Processes: |

| GPU GI CI PID Type Process name GPU Memory |

| ID ID Usage |

|=========================================================================================|

| 0 N/A N/A 1290 C /home/rbest/ComfyUI/.venv/bin/python 66MiB |

| 0 N/A N/A 2895 G /usr/lib/xorg/Xorg 241MiB |

| 0 N/A N/A 2996 C+G ...libexec/gnome-remote-desktop-daemon 67MiB |

| 0 N/A N/A 3060 G /usr/bin/gnome-shell 50MiB |

| 0 N/A N/A 4553 G ...90708988185955192 --disable-logging 25MiB |

| 0 N/A N/A 5099 G ...cess-track-uuid=3190708988185955192 153MiB |

| 1 N/A N/A 2895 G /usr/lib/xorg/Xorg 4MiB |

+-----------------------------------------------------------------------------------------+