MACBOOK AIR USB C TO HDMI NOT WORKING DRIVERS
MACBOOK AIR USB C TO HDMI NOT WORKING MAC

Fix Thunderbolt to HDMI Issue macOS Catalina Also, if you have a 4K /60HZ monitor or TV, buy USB-C to HDMI adapter.

MACBOOK AIR USB C TO HDMI NOT WORKING MAC

Note: If your external display has 30Hz non-HDR HDMI ports then try connecting Mac to those ports. Now plug in the power and HDMI cable to your Mac, wait for few seconds and start your Mac.Disconnect or unplug the HDMI cable from your Mac and wait for 25-30 seconds.Disconnect the power cable or charger from your Mac.Press and hold the power button to shut down your Mac.Plug out and Pluginīefore troubleshooting makes sure there is no damage to the HDMI cable or HDMI ports. Just like the above user, there are many others who are facing external display issues after upgrading the macOS to Catalina. Mini is connected to 4K TV, I don’t have any other option (except USB-C to HDMI adapter which I don’t have). Just in case, I tried another cable and I also tried connecting it to AVR, but still no signal. Cannot enter safe mode nor recovery mode. It was working fine today, until the Catalina update. No HDMI Signal After macOS Catalina UpdateĪfter updating to Catalina, Mac Mini 2018 does not send any HDMI signal. In this post, we will try various troubleshooting steps to fix the external display issue on macOS Catalina. If the device continues to appear with the same PID then then you should contact the original manufacturer, not DisplayLink, to discuss a hardware replacement of the product.Overview: There are multiple users who are facing No HDMI Signal after upgrading Mac to macOS Catalina.

If the PID is 8060 or 8080, then the device has not booted up correctly. To recover the device: It will be a value like 0xXXXX, where XXXX can be any hexadecimcal value (0-9 or a-f).

The product ID should be shown in the device properties.

Click on the device in the system report to select it.

If the DisplayLink device is shown in the system report, but still does not work, then the Product ID (PID) should be checked to make sure the device has started up correctly. If the device does appear but still does not work, check the Product ID as described below.Ĭheck the Product ID of the DisplayLink device If it still does not appear in the system report then you should contact the original manufacturer, not DisplayLink, to discuss a hardware replacement of the product. This will ensure that the device an receive enough power from the USB bus.

If using a USB bus powered device, make sure that the device is connected to an externally powered USB hub (the hub has a USB cable and a power supply connected to it).Check that the USB cable works with other devices.

MACBOOK AIR USB C TO HDMI NOT WORKING DRIVERS

The wireless USB link is not part of the DisplayLink technology and will need separate drivers to be installed.

If using a Wireless USB product, ensure the wireless USB drivers are installed separately.

Check the USB port with another device to make sure other devices are recognised.

Unplug all cables from the device, then reconnect power (if needed) then the USB cable.

If no devices are shown, then follow the steps below to try and make the device appear in device manager.

In the USB devices list, locate the DisplayLink device.

Select the USB information from the Hardware category as shown in the screenshot:.

The System Information application will open.

On Lion and later: click on 'System Report…'.

Choose 'About this Mac' from the Apple menu on the top left corner of your main screen.

This can be done by checking that the DisplayLink device appears in the System report. If your device does not work, the first thing to check is that the DisplayLink device has been detected by OS X. If your DisplayLink product has stopped working, or has never worked, follow the steps below to try and diagnose if it is a hardware problem.Ĭheck the device is recognised on the USB bus

Macbook air usb c to hdmi not working