My Pimax Artisan has a presisting issue.
After the pitool shutdown, computer restarted or similar, and then restarting the pitool, the screen colors are often reversed. This happens maybe 3/4 probability when restarting the headset.
Usually they are initially both displays reversed in color, so that the screens look like a negative image (black->white, white->black, yellow->green etc). After restarting pitool or clicking “reboot HMD” it usually fixes one of the displays but rarely both. After several reboots, restart service clicks, or restarting pitool it by luck starts up properly and then the colors are normal again until next time the headset is shut down and restarted.
It may be that cycling the power of the headset by disconnecting and reconnecting power supply has highest probability of fixing the color inversion. I did not test extensively but it may be that “cold power-up” by having unplugged power cord instead of unit on standby by pressing the power switch on the headset gives more reliable startup regarding this inverted color issue.
Sometimes just a small range of colors (darker ones) are somehow “bit-shifted” so that there is a color effect on all pixels with certain level of darkness tone. Rebooting HMD usually helps.
I believe this is driver/service level or firmware level issue. Something is not done correctly at initialization phase of the headset.