I've been using Dell S2721DGF for two years with my PC with no problems. But a couple of days after connecting it to my laptop, monitor started showing "issues" such as: screen turning off every couple of minutes, hissing sounds from the monitor, and left half of the screen significantly dimmer than the right. I contacted Dell support and they were willing to replace it for free. All these issues I mentioned gradually got worse and worse.
Now I've been using the replacement for about a week and it's happening again. Exact same issues, but right half of the screen is dimmer this time.
I've been using USB-C to Displayport with my laptop using the USB-PD at the back, and Displayport to Displayport for my old PC.
Things I've tried:
Using different laptops - still same issues
Using different cables - still same issues
reinstalling new drivers, reinstalling windows
Legion 5 Pro - a little more than a month old and bought it new.
Let me know if you guys need any more info, thanks for your time.