My headset is not working on my monitor

For the USB situation, you need a USB A to B or C, depending on what the monitor needs. Also any headset needs the 3.5mm jack to be plugged in. May I ask you to specify what is the "data port" that you are mentioning? Is it USB, VGA or else?

@Okmeque1​ some clarifications. my headset is wireless, so I am connecting it with a USB dongle to the monitor. I am connecting the PS% to the monitor with HDMI. and I am connecting the laptop to the monitor with Display port*. now when I turn on the headset, I cannot hear either of the devices. but when I connect it to the devices separately, I can hear perfectly fine. it's just when I connect the USB dongle to the monitor that the PS5 and the laptop do not read it or something.

@HazemRiad​ I don't think wireless headsets support 2 devices being plugged in at the same time. However, since you are plugging your USB Dongle into your monitor, you need a USB cable because the way the USB ports work is that they are basically a powered USB hub and you need to plug in a USB DATA cable into the laptop AND the monitor(so you grab a USB A to B Cable and plug the A end into the device and the B End into the monitor). But this setup of trying to connect BOTH devices to 1 headset won't work, not with this monitor at least. The reason why is because the monitor has 1 USB INPUT. However, you can try grabbing a cable like this one : https://www.ebay.co.uk/itm/194342826959?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1IGvPDngHTgeuicj60sOzbA33&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&mkscid=101&itemid=194342826959&targetid=1647205088560&device=c&mktype=pla&googleloc=9072504&poi=&campaignid=17206177401&mkgroupid=136851690655&rlsatarget=pla-1647205088560&abcId=9300866&merchantid=428615690&gclid=CjwKCAiAjrarBhAWEiwA2qWdCLVhPtOyiZBiWbCaV_t411o5GuF2a9bfEapZf_NHTERV_VgnKSlavRoCUgUQAvD_BwE which will allow you to plug in both USB's into each device respectively and offering one USB Female plug. Plug in the A Male end into the thing and then plug it into your monitor. I have not tried this, but the cable I selected appears to be for DATA. I do not know it will actually work, it is one of my ideas.

I tried many things, but nothing worked. connecting a USB-A to the laptop / PS5 and USB-B to the monitor and connecting the headset dongle to the monitor works but i can only connect one. But for example, is it possible for both devices to connect at the same time by having a cable that goes from 2 USB-A to 1 USB-B like the link below?

6ft (1.8m) USB 2.0 One B Male to Two A Male Y-Cable | USB 2.0 Cables | USB Cables, Adapters, and Hubs | USB and PC (cablestogo.com)