How To Change Laptop Speaker To Headphone. Plug the speaker AC adapter into the electrical outlet and turn on the speakers. Right-click on the speaker symbol in your system tray area near the time and date.
If you see a small red circle with a slash through it on the Speaker button click it to activate the speakers. This will automatically align with any changes you make to the default system audio output device. You want to play something on a TV hooked up to your computer for someone else but also want to keep using the computer and maybe listen to music on headphones while you work.
Click the Balance button.
The speaker and headphone jack would both work at the same time. In the resulting Balance dialog box use the L eft. Open the Sound Settings window. The Same as System audio device configures your computer to use the system default audio output device.
