Newbie: How to report a bug? Installing KiCad makes Ubuntu 18.04 unbootable

[Zachrey Helmberger]

I finally figured out how to use the Ubuntu Live USB stick and get a command prompt and ran e2fsck -fcck /dev/sda1 and found some badblocks but even after doing this, Ubuntu became unbootable after installing KiCad. I installed 18.04 again by choosing "dual boot" or something like that that made me make a 2nd partition of the disk. I installed 18.04 on it and installed restricted-codecs (forgot to click on the button for the codex on the USB install). I installed Slack and rebooted and powered off numerous times with the installation on the new partition and it was working great!!
Then I installed KiCad using
sudo apt install kicad
sudo apt-get update
sudo apt install kicad
??
This produced a useless schematic editor. The "crosshair" cursor tracks all over the schematic and you cannot find esp8266, CP2102 or other stuff. will need to purge this and do the full install.
sudo apt purge kicad



To do a "full install", whatever that means, you need to do 
sudo add-apt-repository --yes ppa:js-reynaud/kicad-5.1
sudo apt updatesudo apt install --install-suggests kicad

I tested the app and it worked great. Then I restarted laptop and got the dreaded flickering ubuntu logo (blank screen->ubuntu loading logo -> blank screen etc) and it would never stop flashing.