On my 27GN950 the USB Hub stopped working. I can hear a high pitched noise, similar to coil whine, if the USB-B to USB-A cable is connected. The coil whine noise was present from the start but now the PC doesn't recognize the monitor's USB hub at all. r/Monitors. If the monitor is connected to the pc using hdmi or dp, you have to run a usb cable from pc to monitor and then the web cam will work connected to the monitor. If you are using a usb-c from pc to monitor the USB ports on the monitor should work. badboyzpwns. OP • 2 yr. ago. I ended up connecting my USB B cable that came with it to the PC and I need to get the monitor working through USB-C but I'm only getting "No signal detected". What I tried: Installing the driver ("LG HDR 4K Win 10 Driver LG_HDR_4K.zip") failed because the monitor is not detected. HDMI works, so the monitor works (but no 4K) Different USB-C ports; Different USB-C cables, inkl. the one shipped with the monitor To remove the USB device. Q.MENU USB Device. Select a USB storage device that you want to remove. When you see a message that the USB device has been removed, separate the device from the TV. Once a USB device has been selected for removal, it can no longer be read. Remove the USB storage device and then re-connect it. This should fix any issues related to the graphics card driver. Follow the below steps to complete this update on Windows 11: Press Windows + X and choose Device Manager from the list to open it. Now, expand the Display Adapters, and you will find your graphics card adapter. Right-click on it and choose Update driver. 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 An outdated display driver can also lead you to have problems with the DisplayPort connection.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. LG 27GN950-B USB HUB Issue. I don't quite understand why this doesn't work. I have an external laptop connected via HDMI to the monitor but my wireless keyboard and mouse won't work through the USB hub. I have tried every USB port on my PC and even a different USB-B to A cable and nothing works. Keyboard/mouse works fine on the PC itself. Audio output not working through HDMI My new M1 Mac Mini running Big Sur 11.1 is connected to two monitors via HDMI (one through the mini's HDMI port, the other through one of the mini's thunderbolt ports). Everything works fine, both audio and video, until the mini goes to sleep. o3oN.

lg monitor usb ports not working