acpi=off is the only way to USB Live Ubuntu/Lubuntu, which eventually shows up only 1 processor (for i7 6700HQ), no power option, no brightness control etc. There are couple of people suffering from the same,
Unable to run Ubuntu on a MSI laptop without disabling ACPI
Sony VAIO laptop SVF11N11CLB not start Ubuntu 16.04 without acpi = off
Booting Ubuntu with "acpi=off" grub parameter
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1336451
How to resolve the issue? Such that processor, power options, brightness control and other ubuntu options are normalized. Such things need to be sorted out.
nouveau.blacklist = 1
without any positive outcome. The only thing which worked wasacpi=off
. I have also tried Lubuntu/ Scientific Linux7.2/ Mint, onlyacpi=off
works. – CR7 May 14 '16 at 11:05nouveau.modeset=0
was the solution, notnouveau.blackslist=1
. – CR7 May 15 '16 at 10:52