With his first accepted submission, billakay
writes "A recently open-sourced experimental Linux infrastructure created by Bell Labs researchers allows 3D rendering to be performed on a GPU and displayed on other devices, including DisplayLink dongles. The system accomplishes this by essentially creating 'Virtual CRTCs', or virtual display output controllers, and allowing arbitrary devices to appear as extra ports on a graphics card."
The code and instructions
are at GitHub. This may also be the beginning of good news for people with MUX-less dual-GPU laptops
that are currently unsupported.