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Normally, the audio works properly in Linux Mint and Ubuntu. Immediately: out of the box.
But not for some computers; there are number of possible reasons for that. Here I will treat some of the most common causes.
Fix it like this (item 4, left column).
In certain rare cases, Ubuntu or Linux Mint has a problem with the presence of multiple active sound cards. Then it's therefore best, to have only one active sound card.
Solution: disable the on-board card (and / or the phone modem) in the BIOS. After you reboot your computer, the sound will come entirely through the PCI card.
If you can't find the disabling option of the on-board sound card (and / or the phone modem) in the BIOS, search the support section of the website of your motherboard builder (or laptop builder) for the manual for your motherboard.
a. Install pavucontrol by means of the application Software (Ubuntu) or Software Manager (Linux Mint).
b. Now launch pavucontrol (in Ubuntu: from the Dash). Check the position of the sound channel sliders.
Note: don't put any slider higher than 90% (risk of distortion).
Tip: It may be that the firmware of the soundcard is flawed, so that the slider for the master volume is under a different channel label than usual. Experiment a bit with combinations of open channels....
Every six months there's a new version of Ubuntu and Linux Mint, each time with a new Linux kernel. The drivers for hardware, are embedded in the kernel.
a lot more of them on this website!
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