As part of GSoC Project, I am working on SaX3 and I have completed the monitor module.
You can get the latest repo from my home repository
Please test it thoroughly,and let me know if common troubleshooting use cases for a single monitor is supported. If there is anything missing let me know. Xinerama is not supported
For both factory and 11.4.
Next up is touchpad, which I will finish by this thursday. And will begin pencil downs the following week onwards.