Update Your Display Driver. An outdated display driver can also lead you to have problems with the DisplayPort connection. Try updating your display driver to see if this resolves the problem. Press Win + R and type in devmgmt.msc to launch the Device Manager. Expand Display adapters and select the display driver. 8. Oiiwak Triple. The best portable monitors allow you that extra bit of screen real estate when you don't have access to a proper monitor. Here are the best ones for different needs. The manual states ThunderboltTM 3 ( ) / USB-C Host (Mac) connection port x 2, USB expansion port x 3 in the Input Connector specification and the following notes. PD (Power Delivery) is supported via ThunderboltTM 3 ( ) / USB-C Host (Mac) port. Features may not work properly depending on the connected device’s specifications and the environment. LG - 34” UltraWide FHD HDR 75Hz FreeSync Monitor (USB) - Black. Model: 34WP65G-B.AUS. SKU: 6451070. (89 reviews) " All about buying this monitor is less clutter with USB connector as advertised by LG. USB -C Monitor great monitor for work from home with a usb -c connection! ". See all customer reviews. For context, I have a 2019 Macbook pro 16 inch and I am using the included USBC cable that LG provides with the monitor. I have also tried all 4 USBC ports on the MacBook, the right-back one worked for a bit and then stopped. All ports provide charge but don't display an image. I have also ensured that I am in the right input setting on the Remove Power completely, including from rear of PSU. Remove all USB headers and audio headers from MB, remove all SATA connections, and SATA device power inputs.. All you need connected are : 24 PIN MB power from PSU. 4 pin power CPU PWR to mainboard from PSU. PWR SW to correct 2 pins on mainboard I tried different cables, different ports, and I even had a usb-a to usb-c adapter, which also didn't work. My mouse and keyboard would function from the ports in the back, but like hell if the monitor would be detected by this app. What DID work was this little external powered usb 3.0 hub. That's it. Instantly detected and running smooth. Step-by-Step Guide to Fixing an LG Monitor With No Signal. Follow these steps to resolve the no-signal issue on your LG monitor: 1. Check Video Cable Connections. Ensure the video cable from your computer to the LG monitor is firmly plugged in at both ends. Secure the cable connection using the screws on the cable ends for a tighter fit. kyy3Ge.