GM12U320

WARNING: Currently,Postmarket OS doesn't officially support them.

GM12U320 chip is a type of GPU chip that allow to get video out via usb.It is mainly used in some projectors like Acer C120 mini projector.

Driver

GM12U320 Tiny DRM Driver

GM12U320 Tiny DRM driver is the driver for GM12U320 usb gpu. It is in the mainline. None of the postmarketOS kernels have the GM12U320 Tiny DRM driver so it needs to be enabled in the kernel config (DRM_GM12U320) and compiled in. Also it has a fake edid data that is hardcored into the driver that edid data is made only for Acer C120 Mini.