I have 3 screens connected to my video card. Two of the screens use the DVI connection and the third uses the HDMI connection. The screen on the HDMI connection has integrated speakers, so I want to use its speakers, but without having the desktop expanded to it.
The HDMI display is 1920×1080, the DVI displays are 1920×1200.
When the desktop is expanded to it, I can hear audio, but if I want to display the desktop only on the DVI connection screens, there's no audio any more, which is normal and makes sense.
But I wonder if there is a way on Windows 7 to use the audio output of a HDMI display device without expanding the desktop to it. Consider that the display device doesn't support external audio input, so, is there a way to hear audio on a HDMI display device with integrated speakers without actually expanding the desktop to it?
It doesn't allow me to set HDMI as a copy of one of the DVIs. I also tried disabling the display in the display settings and setting HDMI as default device. Even if the audio output is set to HDMI, the display doesn't play audio.
Best Answer
Try disabling the display in the display settings, then open sound options and set HDMI as default device.
From our comments, It seems that the GPU is responsible for the signal that is sent to display, therefore it does not seem possible to only get audio from a GPU's output.