I am using Raspberry Pi OS Lite with just X Server.
I tried to do “hyperpixel4-rotate left” and it caused an error. The Hyperpixel is working in terminal and X-Server. I am attaching a screen shot from the working HyperPixel.
I also tried “DISPLAY=:0.0 hyperpixel4-rotate left” and that did not work, something couldn’t be found.
I’ve tried this with and without the HDMI to a real monitor connected.
I am trying to accomplish this, with the HyperPixel: