The USB device might have limited functionality when connected to this port. Plug the USB device into a different USB port on your PC. If your Windows 10 phone is already running the latest version of Windows 10 Mobile, try to connect your device to a Windows 10 PC instead. Make sure the device or dongle is connected to the USB-C port on your PC that supports the correct Alternate Mode. For example, a DisplayPort Alternate Mode adapter should be connected to the USB-C port on your PC that supports DisplayPort Alternate Mode. The reason that bandwidth becomes important is due to the advent of 4K content. Due to the limited bandwidth of HDMI 1.4, only 24fps was possible at 4K resolution (3,840 x 2,160). Now, thanks to the extra bandwidth available in the 2.0spec, up to 60fps at 4K resolution is possible. This also allows you to view 144Hz at 1080p (1,920 x 1,080) through a HDMI 2.0 connection. We outline the different types of connections below and give you different usage scenarios to help you decide. We’ll also outline the best connection and cable to choose for 144Hz and other higher refresh rate displays.

The MHL Alternate Mode lets you project video and play audio on an external display that supports MHL.For those of us who game, you might be wondering what’s the best cable to use to achieve a 144hz refresh rate. There are various cables you can use, but you should pay close attention to the version of your output port and that of your monitor.

Your PC (or phone) is providing power to other devices, so it has temporarily limited the power it provides to the device you just connected to. DisplayPort 1-1.1a is able to output 144Hz at 1080p, while 1.2-1.2a can output 1440p at 144Hz, 1.3 outputs up to 120Hz at 4K, and 1.4 can output 144Hz at 4K using Display Stream Compression (DSC). The cable to use depends on your display and the type of video connection it uses—DisplayPort, HDMI, or VGA.Make sure the device or dongle is connected to the USB-C port on your PC (or phone) that supports the correct Alternate Mode. For example, a DisplayPort Alternate Mode adapter should be connected to the USB-C port on your PC (or phone) that supports DisplayPort Alternate Mode. The device or dongle you connected to has new features for USB-C that your PC (or phone) doesn’t support. The HDMI Alternate Mode lets you project video and play audio on an external display that supports HDMI.

USB Type-C has a new feature called Alternate Modes. If your USB-C cable has this feature, you can connect to non-USB devices that support the same Alternate Mode. For example, if your USB-C cable has the Thunderbolt Alternate Mode, you can connect to Thunderbolt devices. There's no setting to turn on—your device automatically uses the appropriate mode if it's supported.The DisplayPort Alternate Mode lets you project video and play audio on an external display that supports DisplayPort. The Alternate Mode feature must be supported on the PC's hardware and software, and the connected device or dongle. You might also need a specific USB-C cable. The device or dongle you connected to has new features for USB-C that your PC (or phone) doesn’t support. A newer 1.3 and 1.4 version, that both have a maximum data rate of 25.92 Gbits/sec, are both becoming more widely available. With the increased bandwidth capabilities, it opens up the floodgates to higher resolutions such as 7,680 x 4,320 (8K).

You will likely find that your new Ultra HD/4K TV supports HDCP 2.2 on its HDMI port, but it’s not always for all of them. Some models will only support HDCP 2.2 for HDMI 1 and HDMI 2 inputs, so if you’re connecting a shiny new Ultra HD Blu-ray player, such as the Panasonic DMP-UB900 or Samsung UBD-K8500, make sure to use the correct HDMI input. A PC (or phone) with USB Type-C connectors has larger power limits. If the connector supports USB Power Delivery, it can charge even faster at greater power levels. Take the video cable that’s connected to your external display or TV, and then plug the other end of it into the adapter.

We explain the difference between every display connection available and help you decide which is best for you

The last USB device you connected to this computer malfunctioned, and Windows does not recognize it. Dust or dirt inside the USB port on your device might be preventing the charger from being inserted correctly. Make sure the device or dongle is connected to the USB-C port on your PC that supports the correct Alternate Mode. For example, if you're connecting a Thunderbolt Alternate Mode device, make sure you connect to the USB-C port that supports Thunderbolt™.