Windows 10: Unable to extend desktop onto LG SSCR2 TV via HDMI

I'm trying to mirror my 1440p 144hz desktop monitor to my 2160p 120hz TV and I'm getting bizarre and frustrating behavior.Please note: I have restarted my computer, I am using HDMI 2.1 cables, I have tried multiple HDMI 2.1 cables, I have tried physically disconnecting and reconnecting all possible permutations of monitors, I have updated the TV's firmware as well as my graphics drivers and Generic PnP Monitor drivers, I have tried disabling "Remember window locations based on monitor connection", I have tried with and without HDR, The TV Display 2 is currently mirroring my main monitor Dis

:)

 

Audio lost to HDMI on LG smart tv.

After the upgrade to 10 I no longer have HDMI audio on my LG Smart TV. I have tried several ways to restore it. I do have sound to the speakers plugged in to my sound card but prefer using the audio on the TV. Any suggestions?

 

LG TV HDMI: No signal

Last night I reinstalled windows 10 2004 on my laptop. After that, none of the two LG TVs in the house will show an image through HDMI. Using Intel HD 3000 graphics. No matter what screen resolution or refresh rate of the TV I pick. However, my Telefunken
TV is showing the picture perfectly. Changing the HDMI cable does nothing.

 

4K60 signal to TV over HDMI problem


Hello!

I'm trying to connect my new PC with a LG TV (49UF7077), but the TV keeps saying "no signal" no matter what I try. The TV sees that something is connected though. And the Geforce control panel quickly and correctly finds the TV and its native resolution and other options. Windows correctly allows extended desktop and other options. I'm using the latest Windows 10 Home and an EVGA GTX 1070 with the latest driver, and checked and controlled new HDMI cable.

What I've tried:
* restarting everything
* resetting the TV
* trying different HDMI ports (although this TV clearly has one certain one which is "the right one" in terms of color support)
* disabling "hdmi ultra deep color" (something which the TV suggests as a fix)
* outputting to TV only (I also have the regular monitor on the DVI port)
* lower resolutions (as if the hardware wouldn't support 4K60)
* connecting a low end Windows 10 laptop using the same cable - WORKS!
* contacting LG support (they couldn't give a solution)

Any ideas?