Hi, I have been using an LG monitor as an external display since January. Suddenly it started create problems. When I connect the display, it doesn’t stay stable. It connects on and off frequently with a blink sound. I opened it once in safe mode. It worked that time but now safe mode also does not work. Port are functioning well and also LG monitor works well with other laptops.
thanks
Hello ExternalScreen,
The following user guide has the best steps you can take for external display issues: If you can’t see your Mac desktop on an external display - Apple Support
If you can’t see your Mac desktop on an external display
If you connected your Mac laptop to a display or TV but can’t see your Mac desktop on the display, try the steps below.
1. Close the lid on your Mac laptop to put it to sleep.
2. Connect the power adapter to your Mac and a power outlet.
3. Reconnect your Mac to an external display.
4. Connect a USB keyboard, mouse, or trackpad to your Mac.
5. If you’re using a wireless keyboard, mouse, or trackpad, make sure it’s turned on.
6. Wait a few seconds, then press any key on the external keyboard, or use the mouse or trackpad, to wake your Mac.
7. If your wireless keyboard, mouse, or trackpad isn’t connected (paired) with your Mac, Bluetooth Setup Assistant opens so you can connect them.
We recommend testing other monitors if you're able. If only your LG monitor does not work connect with the manufacturer. If all displays do not work with your Mac reach out for additional assistance here: Get Support
Regards.
Which LG monitor? What Mac? How is it connected (directly or through a hub)?
Yeah, me too. My LG Ultra HD monitor flickers blackout randomly.
LG external monitor not stable
