Clean re-implementation of FrescoLogic FL2000DX DRM driver and ITE Tech IT66121F driver, allowing to enable full display controller capabilities for USB-to-HDMI dongles based on such chips in Linux
Install DKMS (your distribution will likely have a package for it), then check out the code and type:
dkms install .
with sudo or in a root shell. DKMS will automatically install the driver into your kernel and reinstall it on kernel updates.
To update the version used by DKMS (when this driver is updated), check out the updated code and run the above command again.
If DKMS reports that the DKMS tree already contains fl2000_drm, run:
dkms install . --force
with sudo or in a root shell.
Check out the code and type
make
Use
insmod fl2000.ko && insmod it66121.ko
with sudo or in root shell to start the driver. If you are running on a system with secure boot enabled, you may need to sign kernel modules. Try using provided script for this:
./scritps/sign.sh
ensure that DRM components are loaded in your system, if not - please use
modprobe drm
modprobe drm_kms_helper
NOTE: proper kernel headers and build tools (e.g. "build-essential" package) must be installed on the system. Driver is developed and tested on Ubuntu 22.04 with Linux kernel 6.5.0, so better to test it this way. Please use gcc-8 or newer to build the driver
For more information check project's Wiki