New
#1
Windows 7 Sound Stopped Working, All Diagnostics Fine
After installing a new Ethernet card, all audio output from my Dell desktop stopped working (front and back). I am using the factory installed Realtek High Definition Audio which is at Location 0 (Internal High Definition Audio Bus). Every diagnostic on the desktop, however, is showing no issues. This includes the volume mixer, the Realtek Audio Manager, Device Manger, the Control Panel's Sound tab and everything else I could find recommended in various online forums. These all show normally functioning audio. This means that when I play something on youtube, or invoke system sounds via Matlab, the mixer shows everything is good, but there is no actual audio output. I have a NVIDIA video card running two monitors, but they are DVI and their sound output is disabled.
Solutions tried:
-Restarting the computer
-Uninstalling driver and reinstalling driver
-Uninstalling driver and reinstalling latest Reaktek driver
-Sound troubleshooter (no issues)
-Fiddling with the Realtek Audio manager advanced settings, connector settings and speaker configuration
-Taking out the new Ethernet card
-Disabling and then re-enabling the reaktek driver
-Disabling and then re-enabling the NVIDIA sound driver
-Plugging into the front jacks
-Plugging into the back jacks
-Plugging into the monitors
-Connecting speakers to the above locations
-Connecting headphones to the above locations
We use this as an experimental machine in a research lab, and really need the audio for subject feedback.