Yesterday I did a system upgrade by running
sudo apt-get update && sudo apt-get -y dist-upgrade on my laptop, a Lenovo G50-80 which only runs
ubuntu 16.04 as my operating system of choice.
Everything from thereon went crazy, in a sense that my internal microphone could no longer work and the problem is that I discovered that while being interviewed using the zoom application as it so happened that I could hear my interviewer but they could not hear me(which was gut-wrenching, to say the least).
I tried all solutions suggested here and many other solutions from other blogs and none of them worked for me.
This morning I turn my machine and I cannot seem to access my system settings and so my frustrations continue.
and I would like to know if I can reinstall my os(which will hopefully fix the microphone issue among others) on
/dev/sda1 without affecting the data on
/dev/sda5 or do I have to backup all the data on these drives before doing that.