I tried to install several versions of Ubuntu several months ago on my laptop that is a new omen 15-dc1049nl with Nvidia gtx 1660ti, with windows 10. I tried the 18.04.3, the 19.10 and the 19.04 version of Ubuntu. The only that worked was the 19.04, I don't know why. So I have used this version until today, this morning I decided to try again the installation of 18.04, actually the 18.04.4. But again after prepared the usb pen with Rufus software I had the same following error:
What do I do wrong? Reading online I read that could be an error due to the fact that the acpi is not turned off. Or can it be a problem of incompatibility with my pc?