I connect my GLK-UCsX via HDMI to my Samsung Soundbar HW-N950 (HDMI input 2) and the soundbar is connected to my Samsung 4K TV. The other HDMI input on my Soundbar is connected to an Apple TV 4K. Where the Apple TV 4K is working flawless all the time, my GLK-UC2X unfortunately is not. Swithing my Apple TV on sets the Soundbar and my TV alive and switching of the Apple TV does the reverse thing. My GLK-U2CX however has a lot of difficulties to get a connection to the Soundbar. I have not found the trick yet how to get picture on the soundbar but most of the times resuming and restarting the GLK-UC2X a few times does seem to do the trick. This is very annoying and makes the solution not workable for the family. And maybe related: as I am considering to use a GLK-UC2X as PC to open RDP sessions I experimented with this same GLK-UC2X to connect to my 2 LG 27UK850-W monitors. One via USB-C and one via HDMI. This is also not working very robust. It took a lot of restarts untill the USB-C port was able to output video (and I still don't know why it started to work) and secondly the HDMI connection after a restart of the PC does not work. The only way to get the second screen (via the HDMI port) alive seems to be to reconnect the cable when the GLK-UC2X is switched on. Even when the monitor is switched off by the power saving settings in Windows the HDMI connected monitor is not powered up again when you hit the mouse or the keyboard. Also then I need to reconnect the HDMI cable. As such I summarize it as instable video outputs. I am using Windows 1809 and have all the updates installed and am running the latest Bios as posted in this forum. Hope this can be resolved.