Some time ago, Ubuntu installed some updates, the front headset has been no sound, with a lot of ways, also can not solve! Try again today, finally solved, very fortunate, now share! First, in the terminal to run sudo alsamixer, press the M key to turn off all open (the display is mm), and then adjust to the appropriate position, white is advisable! The last item, Independ, shows that the headset and speaker can only have one sound, and pressing the M key turns the headset and speaker to sound at the same time! If the headset still doesn't sound, try running sudo gedit/etc/modprobe.d/alsa-base.conf and then add #enable headphoneoptions Snd-hda-intel power_save on the last line =10 power_save_controller=n Model=6stack-dig then run sudo apt-get remove alsa-base and then restart sudo shutdown-r now restart after running sudo apt-get Install alsa-base! should be able, anyway I was so solved, I groped out! If it's settled, say a sound! Reprint Address: http://blog.csdn.net/love_fdu_llp/article/details/20866323
[Reprint] Solve the problem of having an Ubuntu headset without sound (voice on speaker)