The Ultimate Guide to Solving DisplayPort Issues with Your Gaming Monitor and Graphics Card


How to fix DisplayPort issues with VG248QE monitor and 4070 ti Super graphics card?

I have a VG248QE monitor that used to work fine with a DVI cable and a 1080 ti graphics card, but after upgrading to a 4070 ti Super card, I can no longer use the DVI port. I tried using a HDMI cable, but it only supports 60hz, while I want to use 144hz. I also tried using two different DisplayPort cables (1.4 and 1.2), but they either gave me a black screen or severe visual glitches and instability. I also tried power cycling the monitor and using a HDMI to DVI cable, but none of them solved the problem. I don’t have any other devices or monitors to test the DisplayPort output or input. Is there any way to fix this issue, or should I buy a new monitor that supports 144hz via HDMI? My motherboard is a GA-AB350M-Gaming 3.


If you are a gamer or a content creator, you might want to enjoy the smooth and crisp performance of a 144hz monitor. However, not all monitors and graphics cards are compatible with each other, and you might encounter some issues when trying to connect them via DisplayPort. This is the case for some users who have a VG248QE monitor and a 4070 ti Super graphics card.

The VG248QE monitor is a popular 24-inch gaming monitor that supports 144hz refresh rate via DVI and DisplayPort, but not via HDMI. The 4070 ti Super graphics card is a powerful graphics card that supports 144hz via HDMI and DisplayPort, but does not have a DVI port. This means that the only way to connect these two devices and achieve 144hz is via DisplayPort. However, some users have reported that they experience black screens, visual glitches, or instability when using DisplayPort cables with these devices.

There are several possible causes and solutions for this problem, and we will explore them in this article. Please note that these are general suggestions and you should always consult the manufacturer’s manuals and support before attempting any changes to your hardware or software.

Check your DisplayPort cable

The first thing you should do is to check if your DisplayPort cable is working properly and compatible with your devices. Not all DisplayPort cables are the same, and some might not support the bandwidth or features required for 144hz. You should look for a DisplayPort cable that is certified by VESA (Video Electronics Standards Association) and has the DisplayPort logo on it. You should also check the version of the cable, as newer versions support higher resolutions and refresh rates. For example, DisplayPort 1.4 supports up to 8K resolution and 120hz, while DisplayPort 1.2 supports up to 4K resolution and 60hz.

If you have a DisplayPort cable that meets these criteria, you should also make sure that it is not damaged or loose. You can try to plug and unplug the cable several times, or use a different port on your monitor or graphics card. You can also try to use a different DisplayPort cable if you have one, or borrow one from a friend or a store. If the problem persists, then the cable might not be the issue.

Update your drivers and firmware

Another possible cause of the DisplayPort issue is outdated or incompatible drivers or firmware. Drivers are software that allow your devices to communicate with each other and with your operating system. Firmware is software that is embedded in your devices and controls their basic functions. You should always keep your drivers and firmware updated to ensure optimal performance and compatibility.

To update your drivers, you can use the device manager on your Windows system, or download the latest drivers from the manufacturer’s website. For example, you can download the latest drivers for your 4070 ti Super graphics card from NVIDIA’s website, and for your VG248QE monitor from ASUS’s website. You should also check if there are any updates for your motherboard, as it might affect the DisplayPort output.

To update your firmware, you might need to use a special tool or software provided by the manufacturer, or follow a specific procedure. For example, you can update the firmware of your VG248QE monitor by following the instructions on ASUS’s website. You should be careful when updating your firmware, as it might cause irreversible damage to your device if done incorrectly.

Change your settings and options

Another possible cause of the DisplayPort issue is incorrect or incompatible settings or options on your devices or software. You should check and adjust the settings and options that might affect the DisplayPort connection, such as resolution, refresh rate, color depth, HDR, G-SYNC, FreeSync, etc.

To change the settings and options on your monitor, you can use the buttons and menu on the monitor itself, or use a software provided by the manufacturer. For example, you can use the ASUS DisplayWidget software to control the settings and options of your VG248QE monitor. You should also check the manual of your monitor for any specific instructions or recommendations.

To change the settings and options on your graphics card, you can use the software provided by the manufacturer, such as NVIDIA Control Panel or GeForce Experience. You can also use the Windows display settings to adjust the resolution and refresh rate of your monitor. You should also check the manual of your graphics card for any specific instructions or recommendations.

You should try to match the settings and options on your monitor and graphics card as much as possible, and avoid using any settings or options that might cause conflicts or incompatibility. For example, you should not use HDR or G-SYNC if your monitor does not support them, or use a resolution or refresh rate that exceeds the capabilities of your monitor or graphics card.

Buy a new monitor or graphics card

If none of the above solutions work, then you might have to consider buying a new monitor or graphics card that is compatible with each other and supports 144hz via DisplayPort. This might be the most expensive and drastic solution, but it might also be the most effective and reliable one.

There are many monitors and graphics cards on the market that support 144hz via DisplayPort, and you can choose the one that suits your needs and budget. You should also check the reviews and ratings of the products before buying them, and make sure that they have good customer service and warranty.


In this article, we have discussed some possible causes and solutions for the DisplayPort issue with the VG248QE monitor and the 4070 ti Super graphics card. We hope that this article has been helpful and informative, and that you have been able to fix the problem or find a suitable alternative. If you have any questions or feedback, please feel free to leave a comment below. Thank you for reading.

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