Amd 6570 sound will not work on phono

[Guest]

The sound worked fine on the rear jack plug,then i made hdmi defaut to use on another monitor,I have switched default back to speaker jack and no sound comes out the speakers , I have even disabled hdmi but it still has no souind.

 

[omega21xx]

I've had issues like this before, try restarting the pc, after changing audio from a jack to hdmi i always need to restart which is annoying. If that doesn't work, reinstall the driver for the video card, then after the restart it should work. This happened occasionally on my 6870 when i had it crossfired, since then i have removed the extra card and am putting it in a older build.