Had same problem today. I had new LG Gram 15Z980. Have been using for a couple of days only with W10 that came installed by default. Today I've installed Linux Mint 19.1 and just after installing from live USB, the first reboot started making strange noise.
As soon as I heard that I just power off and power on again. Randomnly after rebooting from Mint some strange sounds appears even before reaching booting screen, in the LG logo screen. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1763994 Title: LG Gram sound issues after rebooting Ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1763994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs