Ubuntu – No Sound in ASUS ZenBook 14 UX433FN after installing ubuntu 18.04


I recently bought ASUS ZenBook 14 UX433FN which came with preloaded Windows 10 Home. I used it for a few days and everything was working perfectly fine. Then I uninstalled Win 10 and installed Ubuntu 18.04 LTS. And I could hear no sound. I tried many things found online but nothing worked. I tried installing 16.04 LTS as well but the same problem showed up. Unlike reported by many it doesn't show dummy output as audio output.What should I do?

Best Answer

I have an asus zenbook 14 ux433FN. Faced the same issue with Ubuntu 18.04 (it comes with the kernel 4.15). I upgraded to kernel to 4.20 through the "ukuu" utility and the sound/headphones seem to work fine.

Here are the commands that in case you need to update the kernel

  1. Check your kernel version

    uname -r

  2. install ukuu by following this link: https://ubuntoid.com/install-latest-ubuntu-kernel-ukuu/

  3. update the kernel with ukuu

    sudo ukuu --install v4.20

  4. reboot and check your kernel version

Note: I would also like to point out that the suspend function would not work in ubuntu 18.04 for ASUS ZenBook 14 UX433FN. It would eat up all your battery even if you are in suspend mode. The solution to that can be found in the following link: Ubuntu 18.04 - Dell XPS13 9370 no longer suspends on lid close