No sound from monitor speakers, only headphones

[stb71]

I have a Acer LED monitor with internal speakers. I don't have any other speakers. The monitor speakers initially worked, but stopped working after I comnnected headphones to the headphone jack on the tower. I have a Dell XPS - X8900. Any ideas?

 

[Lutfij]

Have you made sure your headphones were unplugged properly from your desktop? You may need to open your chassis and disconnect the front panel audio header and see if the audio from your monitor is restored. It's highly possible that the front panel audio connection might have sorted or have remained in the connected position as HD audio has a sense wire which deactivates the rear audio ports when a headphone is connects to the front panel header.

Might also want to read through this.

Based off your product's support page, you're running off an onboard Realtek audio solution. Have you installed the latest drivers ? Speaking of drivers, what OS are you on? It would add more info for us if we knew your monitor model number as well.

 

[Pizzakity]

Sense windows likes to change settings automatically, you probably have to open your playback devices and set the default device to your monitor. A quick way to do this is to right click the speaker in the bottom right corner and click playback devices, right click the device that has your monitor and click set as default device. This should transfer the audio from the headphones to the monitor.