How do I run 144hz on XL2411P?

XL2411P only supports 144hz via Display port and DVI-DL port. Please make sure your cable is connected to the monitor and graphic card properly.

If you are running Win 10, follow this: Setting > System > Display > Advanced Display Settings > Display Adapter Properties. Then click the “Monitor” tab, choose your preferred resolution and 144hz refresh rate from the “Screen Refresh Rate” list, and click “OK.”

Or you can do the setting via GPU control panel; If it is NVIDIA GPU, please open the NVIDIA control panel, and then head to “Change Resolution” tab under the “Display” option, and then choose your preferred resolution under “PC (not Ulta HD, HD, SD)”, and choose “144hz” under “refresh rate” option.

If it is AMD GPU, right click on your desktop and select “AMD Radeon Settings”, and then click on the “Display” option, and then you can choose your preferred resolution and 144hz under the Display options page.