Using DisplayPort on a KTC monitor may depend on the cable connection, the selected DP input, and the signal path. Check the sections that match your setup. If these steps do not fit your screen, use the model links below for exact instructions.
What to check
Check the DisplayPort cable connection
The simplest setup is one direct DP cable between the source device and the monitor.
Check this:
- Turn off the source device if needed.
- Connect the DisplayPort cable firmly at both ends.
- Turn the monitor and source device back on.
- Wait a few seconds for the signal to appear.
A loose DP connection can still fit physically while failing to carry a stable signal.
Check the selected DP input
Some monitors need the input source to be changed manually after the cable is connected.
Check this:
- Open the monitor menu or input shortcut.
- Choose
DPorDisplayPort. - Confirm the selection.
- Wait for the picture to appear.
If another cable is also connected, the monitor may stay on the wrong input until you switch it.
Check the simplified signal path
If the signal is unstable, reduce the setup to one direct cable only.
Check this:
- Disconnect docks, adapters, KVM devices, or splitters.
- Leave only one DP cable connected.
- Reconnect the cable at both ends.
- Test again before adding any extra devices back.
This is the fastest way to tell whether the issue is the monitor path or an accessory in between.
If the steps above do not match your screen
Before going to the model list, try these quick checks:
- confirm that the cable is really DisplayPort and not another connector type
- check whether the source device's DP output is active
- try another DP cable if the screen flickers or stays black
- compare the result on another monitor or another source if available
Find your model
Gaming Monitors
- KTC 27M1
- KTC H24F8
- KTC H24S17
- KTC H24T7
- KTC H25T7
- KTC H25X7
- KTC H25Y7
- KTC H27E22P
- KTC H27E6
- KTC H27F22
- KTC H27P22S
- KTC H27P3
- KTC H27P6
- KTC H27S17
- KTC H27T22C-3
- KTC H27T6
- KTC H32P22P
- KTC H32S17
- KTC H32S17F
- KTC H32S25E
- KTC H34S18S
- KTC H49S66
- KTC M27P6
- KTC M27T6
- KTC M27T6S
Office Monitors
OLED Monitors
Smart Displays
If you do not know your model
Check the model name on the monitor label, the product box, or your order confirmation before choosing a link above. If your model is not listed on this page yet, check your product support page or contact support for the correct instructions.


