Go to terminal via Applications-Accessories.
Enter the following:
Enter your log-in password when prompted.
sudo gedit /etc/modprobe.d/alsa-base
A new window will open with the alsa-base file.
At the bottom of the file enter:
Save the file and exit the editor.
options snd-hda-intel probe_mask=8 model=lenovo
In terminal enter
to exit terminal.
you may need to restart the PC for the code to take effect.
You can copy the code here by using Ctrl+C and Ctrl+V to paste (Ctrl+Shift+V in terminal).