I want to use my Display Port Monitor with my Xbox Series S to run 144hz my monitor is an Acer Predator XB241H and only runs 144hz via display port what adapter would I have to use to get it running?
G-Sync monitors of this generation are hard-limited to 60 Hz over HDMI. He will need an adapter to connect to the DisplayPort input to get 120 Hz. Support will depend on whether the monitor's 120 Hz profile uses standard CTA-861 timing, which we can have OP check for.Xbox only does 120fps/120hz.
Displayport won't magically force you 144hz. Use it's HDMI port. If the HDMI port is being used, get an HDMI Switch. Xbox will not handshake properly with a monitor using Displayport not specifically designed to accommodate consoles.
If that's the case chances are even slimmer. OP didn't mention using GSync or Freesync. OP will at very least need an active adapter and hope that adapter works, even then it's not guaranteed to work.G-Sync monitors of this generation are hard-limited to 60 Hz over HDMI. He will need an adapter to connect to the DisplayPort input to get 120 Hz. Support will depend on whether the monitor's 120 Hz profile uses standard CTA-861 timing, which we can have OP check for.