How to transfer video with sound from PC to TV via HDMI?

Question

MSI

Good afternoon everyone,
The problem is the following - I connected the computer to the TV set via HDMI. The picture is displayed, but the sound does not go.
Computer specification -
Motherboard - MSI z77-GD55
Video card - Palit getsteram gts 680
percent - Intel Core i5 2550k (WITHOUT built-in video core)
OS - WIndows 8.1 PRO x64 (License version with all updates).
TV - Samsung 46F8000
The connection to the computer goes through the video card - Palit getsteram gts 680 (According to the specifications, the video card supports sound transmission, without any additional adapters).
In Audio Devices - four Nvidia High definition audio output ports are displayed, but all ports are gray and labeled as "Not Connected" while the HDMI cable (v 1.4a) is plugged in and the image is being transmitted.

In the Nvidia control panel settings, there is no option to select the "HDMI-HDTV (with audio)"

connection, just an existing connection is displayed, there is also no option to add a digital audio connection through the control panel - so many display ports are displayed.

There are no problems in the device manager either.

Draveira all the latest (including Nvidia HDMI sound), installed in a clean and reinstalled - no result.
BIOS (UEFI) - the latest version, realtek drivers are also installed.
The only option that I see is that there must be some kind of jitter on the motherboard that switches the sound to HDMI.
Can someone advise something?

Answer 1

Could it be a cable problem? Does it work on other devices?

Answer 2

The only option that I see is that there must be some kind of jitter on the motherboard that switches the sound to HDMI.

Very unlikely, because On my MSI Z77A-G45 + ASUS GTX670, sound via HDMI works out of the box. Moreover, in the digital audio settings in the NVIDIA panel, in addition to the “DisplayPort” line, there is “HDMI” and two “DVI”.
Driver version 332.21.
If interested, we can compare other settings and driver versions.

Answer 3

In general, the answer is late, but it can be useful to someone!
In Audio Devices - four Nvidia High definition audio output ports are displayed, but all ports are gray and labeled as "Not Connected" while the HDMI cable (v 1.4a) is plugged in and the image is transmitted.
The search for TV speakers is carried out with the TV turned on, otherwise it will have nothing to see.
After turning on the TV in the sounds section, the TV speakers will be active, set them by default. When the TV is off, the PC speakers will work, when it is on, it will automatically switch to TV.