badman1972 :
Right click on the speaker icon in task bar and select play back devices, in the pop up window right click on the HDMI device and set as default device.
THIS is probably the correct method.
You may have some weird glitch hence the 2nd display and cursor issue but let's try this->
1) NVidia drivers are up to date (from NVidia site)
2) HDMI cable between receiver and graphics card
3) Reboot PC
4) right-click audio icon in System Tray (lower right)-> "Playback Devices"-> "playback"-> "NVidia HDMI output"->
5) set as DEFAULT then test
6) If display issue persists, try to uncheck any 2nd "monitor" in the NVidia Control Panel
Other settings:
- NVidia Control Panel-> Display-> Adjust desktop size and position-> choose "ASPECT RATIO" and "GPU" scaling and save.
- "Set up Digital Audio" in the NCP should also work to assign the HDMI audio.
- ADAPTIVE VSYNC is a great tool for some games (I use it for most games that I want to use VSYNC for. Read more about it. One drawback due to the way it works is cut scenes often have screen TEARING.) Anyway, setup is under "Manage 3D Settings" and if the game isn't in the list yet then simply Open/Close the game, click "ADD" and it should be at the top of the list that appears.
OTHER COMMENTS:
- I'm unsure if your RECEIVER has the capability to show up separately in the audio device section. I still think "NVidia HDMI" is probably the best method.
- Read your receiver MANUAL to see if any PC-specific recommendations exist.
- *Your receiver can apparently update it's FIRMWARE if it has a network connection. Look into that if you haven't yet.