Linux mint no sound and installer freezing

Happened to me today after a month of struggling:
The installer on a live usb was freezing right after i clicked continue after checking if i had enough disk space and an active internet connection.
The culprit was my windows disk (a crucial ssd 250gb) where a hidden partition created by windows 10 was hindering the install process. I deactivated the ssd in the BIOS and proceeded to install linux mint without any problem (strangely that didn’t do it with ubuntu nor fedora). I activated it after the install, and done a

gksu update-grub

After that, I had the bad surprise to not have sound (well, I had sound, but only thanks to my lcd screen via the Display port).

inxi -Ax

Displayed my sound cards correctly:

Audio:     Card-1 Intel Device a170 driver: snd_hda_intel bus-ID: 00:1f.3
           Card-2 NVIDIA Device 0fbb driver: snd_hda_intel bus-ID: 01:00.1
           Sound: Advanced Linux Sound Architecture v: k3.19.0-32-generic

Tried numerous things, but the only one that worked was thanks to this:

in particular the part:

sudo apt-add-repository ppa:ubuntu-audio-dev/alsa-daily
sudo apt-get update
sudo apt-get install oem-audio-hda-daily-lts-vivid-dkms

Now i have my real soundcard detected, and it works just fine.