No sound from internal speaker but headphones OK
638
Stop sound from speakers when connecting headphones
11739
No sound from speakers on MacBook Pro except the startup chime
81210
Mono sound output in Ubuntu?
80918
Disabling sound output devices (e.g. Internal Speakers) in OS X
104254
USB Audio Device Loopback Through Speakers
97731
How to Record Screen and internal Audio?
107174
How to make volume buttons on earphones/headphones work with Android?
89545
How do I toggle headset/headphone mode manually?
89668
How to record the sound also in a screen recording if the headphones are connected?
50203
Make headphone output mono
132860
JACK breaks audio. How do I fix it?
7290
How do volume control headphones work?
95709
Why are my Macbook's internal speakers not available?
5822
How can I get sound working on Bootcamp + Windows 8.1?
100809
Internal speaker (Audio) is not working in Ubuntu 20.04 LTS after upgrading from Ubuntu 18.04 LTS
101009
Ubuntu 16.04 won't output sound to Bluetooth headphones
24115
Headphones microphone is not working