Stereo vision using opengl on ubuntu 22

We used the Stereo Vision setup, glasses and infrared emitter to visualize proteins on linux on stereoscopic displays. However since some time (ubuntu 22) it seems this is not working any longer. I know that stereo vision is deprecated and no longer supported. But on linux this should all be opengl? In the current drivers also the stereo option 10 is still available. Our application (eg. pymol) is still displaying the two images for left and right eye, flickering at 120Hz, but the emittor is not switching into the bright green mode and allows the glasses to synchronize? There is no error displayed when switching to the quad buffered mode. Also the emittor is visible on the udev usb drive. What can be the problem and how to resolve?