Fermi Nvidia GPU phantom display under nouveau switching
A Fermi-era Nvidia GPU under nouveau logs kernel warnings and shows a phantom display when switched via vgaswitcheroo.
Tier II · Emerging Problems that are still building up.
4 public reports · first reported 29 September 2026 · last reported 29 September 2026
What's going wrong
On NixOS, owners of older Fermi-generation Nvidia graphics cards running the open nouveau driver report that switching the GPU through vgaswitcheroo sets off kernel warnings in the system log and leaves a phantom display output that is not physically connected.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
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