Ut vos es usura a laptop per Ubuntu, vos mos forsit animadverto a pugna icon near clock, vel a vox plug icon si vos have is plugged in:

Vos may non volo vox plug icon exhibeo sursum ut vos have computer plugged in, vel vos may have a misconfigured installation qua is usquequaque ostendo sursum. Aut via, suus’ a simplex change.

Navigo ut Ratio \ Preferences \ Vox Procuratio

Hic vos can paro ut pugna/ vox icon ero propono.