Hi. I have a Toshiba Qosmio laptop, Windows 10. Earbuds will not work. I spent over an hour using your suggestions. Under Manage Audio Devices, earphones are not listed. Just these 2 show up: Speakers and "Digital Audio (HDMI) not plugged in." but I enabled it anyway. I do not have RealTek HD Audio Manager installed. Device Path is: HDAUDIO\FUNC_01&VEN_10EC&DEV_0269&SUBSYS_1179FC04&REV_1001\4&68B495B&0&0001. The driver is updated.
Thanks for any assistance you can give me.
Right-click on the sound icon on the lower-right of your computer screen, then click Sounds. Click the Playback tab, unplug and then re-plug your headphone into the headphone jack to make sure Headphones (or Speakers/Headphones, same as below) is checked, then click OK.