New to Ubuntu (apart from trying it for a short time years ago) and cannot get the sound to work. I have recently installed Ubuntu 18.04 LTS alongside Windows 7 in a dual-boot setup (had Windows 7 for years on the computer with no sound issues) on a Dell Inspiron N5110.
I have tried to resolve this in numerous ways:
-> Checked that the sound is not muted
-> Checked that the OS recognizes the sound device (shows as "Speakers - Built -in Audio" in sound settings, and as "HDA-Intel - HDA Intel PCH" in System Profiler and Benchmark)
-> Followed instructions (on https://itsfoss.com/fix-sound-ubuntu-1304-quick-tip/) to reinstall Alsa and Pulse audio, and edit the speech-dispatcher file
-> Tested sound on "Test Speakers" in sound settings, and on Youtube and Twitter videos on both Firefox and Chromium
-> In Windows (where sound comes through the laptop speakers with no issues), the audio drivers are "IDT High Definition Audio CODEC, driver version: 18.104.22.16824, and Intel(R) Display Audio, driver version: 22.214.171.12474.
I've tested the sound with external speakers and headphones and they seem to work, so suspect this could be a driver issue but not certain - and don't know how to resolve this if this is the case especially since, as mentioned, sound settings and System Profiler and Benchmark seem to recognize the hardware.
None of the above methods I've tried have worked. I'm hoping to use Ubuntu instead of Windows as much as possible to try to learn more about Linux, so using Ubuntu for regular use (including media) should hopefully help - so if anyone knows how to resolve this it'd be appreciated (suppose this issue in itself might be good for learining though).