There is no sound but videos are working fine.
I have tried sudo apt-get install pulseaudiooutput command.
I got the output:-
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package pulseaudiooutput
ketanrawat@ketanrawat-SVF15213SNB:~$
It is not pulseaudiooutput, that doesn't exist. You should try reinstalling it.
Firstly, remove all the sound drivers(so we can install them fresh):
sudo apt-get remove --purge alsa-base pulseaudio.
When that's done, reinstall :
sudo apt-get install alsa-base pulseaudio
When finished, ALSA:
sudo alsa force-reload
