We use cookies and similar technologies to process personal information for the operation of our website, statistical analysis, and providing targeted advertising. We share information about your use of the site with our advertising partners who may further share it with additional parties. You may opt out of performance cookies here, and learn more about how we use cookies here

Cookie settings

  • On

    Off

    Strictly necessary cookies

    These cookies are essential so that you can move around the website and use its features. Without these cookies services you have asked for cannot be provided. See the list of strictly necessary cookies. 

  • On

    Off

    Functional cookies

    These cookies allow the website to remember choices you make to give you better functionality and personal features. See the list of functional cookies.

  • On

    Off

    Performance and advertising cookies

    These cookies are used to track your activity on the BenQ website and other websites across the Internet, help measure the effectiveness of our advertising campaign and deliver advertisements that are more relevant to you and your interests. We use various advertising partners, including Amazon, Facebook, and Google. These cookies and other technologies capture data like your IP address, when you viewed the page or email, what device you were using and where you were. You can find out how to avoid them below. See the list of performance and advertising cookies.

We use cookies and similar technologies to process personal information for the operation of our website, statistical analysis, and providing targeted advertising. We share information about your use of the site with our advertising partners who may further share it with additional parties. You may opt out of performance cookies here, and learn more about how we use cookies here

Cookies setting

Why does my monitor keep showing no signal even though the DisplayPort cable is connected properly, and what should I do?

Please check the following:

  1. Make sure to update to the latest graphics card driver and also the motherboard BIOS version. If you can’t update to the latest driver when connected via DisplayPort due to no signal, switch connections to HDMI if possible.
  2. Check the input menu on the screen to see if the DisplayPort option is selectable. If DisplayPort is not selectable, please make sure the DisplayPort cable has been properly connected to both devices.
  3. If the DisplayPort option is selectable but no signal appears on screen, please unplug the cable and plug it back in the make the monitor re-detect the connection.
  4. If the condition persists, try to connect the monitor using HDMI to make sure the monitor functions properly, then try DisplayPort again.
  5. If possible, cross-test the monitor with multiple devices using DisplayPort and verify at least one device shows a signal. Trying several DisplayPort cables and cross-testing the cable with other devices may also help.
  6. If the problem occurs suddenly after using DisplayPort normally, use HDMI to make sure DisplayPort is set to a resolution and refresh rate that are supported by the monitor.

If none of the above steps resolve the issue, the monitor needs to be inspected. Please contact our customer service team, as we'd like to offer additional assistance.

ESD input menu

Applicable Models

XL2411P (24"), XL2411K (24"), XL2430 (24"), XL2536 (24.5"), XL2540 (24.5"), XL2540K (24.5"), XL2546 (24.5"), XL2546K (24.5"), XL2546S (24.5"), XL2720 (27"), XL2731 (27"), XL2740 (27"), XL2746S (27"), XL2731K (27"), XL2746K (27"), XL2566K (24.5"), XL2546X (24.5")

Was this helpful ?

Thanks for letting us know. How would you describe this FAQ?