It is posbile with my setup :
- GeForce GTX 460 OC 1GB DDR5 256-bit;
- LG TV 42LM620S;
- DVI to HDMI Adapter;
- HDMI cable;
The HDMI cable is inserted in HDMI IN 4 (PC) in my LG TV connector.
Final result :
However the audio signal is stereo (2 channels only) on my TV.