How to resolve win7 notebook HDMI output TV no sound failure

1, in the exclusive mode using HDMI, here to Lenovo Y460A as an example, the notebook with HD 5650 and GMA HD dual graphics card, in integrated graphics mode, can not achieve HDMI audio output, so you must switch to the unique mode

2, if in a unique mode, or can not hear the voice, the first mouse right click on the taskbar on the small horn, select the "Playback device" option;

3, then in the pop-up sound interface, in the window blank right click and in the "Show disabled devices" before the tick;

4, then the mouse right click "ATI HDMI Output" icon, select "Enable." Then the LCD TV icon will display a green tick, which indicates that the HDMI audio has been successfully used as the default playback device;

5, the last click the Application button, this time through the HDMI output to the LCD TV display High-definition film is to find sound back to normal oh, if you can not display the "HDMI Output" icon, you need to reinstall the HDMI audio drive Oh.