Solution: You need to edit this file /etc/modprobe.d/alsa-base.conf and then add a line in its end. Use the following commands: sudo gedit /etc/modprobe.d/alsa-base.conf Now add the following line at its end: options snd-hda-intel model=generic Now reboot your computer. It should solve your problem. If the solution doesn’t work then try the Further Troubleshoot. Further Troubleshoot: The term model = generic may not work in all the cases as sometimes it depends on the model of your sound card. Find your sound card here. You can try replacing the word generic by the following words depending upon your laptop: Acer options snd-hda-intel model=ACER Asus F3J options snd-hda-intel model=uniwill-m31 Dell 6400 laptop options snd-hda-intel model=dell Dell Inspiron options snd-hda-intel model=ref Dell Dimension 9150 options snd-hda-intel model=ref Fujitsu Siemens Amilo XI 1526 options snd-hda-intel model=fujitsu Gateway laptops with a sigmatel audio device options snd-hda-intel probe_mask=1 or options snd-hda-intel model=test enable-msi=1 probe-mask=1 Lenovo: options snd-hda-intel model=laptop-eapd LG P1 Express Dual (ALC880 chip) options snd-hda-intel model=lg LG P1 with CMI9880 chip options snd-hda-intel model=minimal Toshiba Satellite a135-s2386 options snd-hda-intel probe_mask=8 model=3stack Toshiba Tecra A8-103 options snd-hda-intel probe_mask=8 model=fujitsu or options snd-hda-intel probe_mask=8 model=fujitsu