SOLVED Problem was linux support with my SSD (Western Digital Blue SN500). As far as I understood, latest kernel comes with support for Samsung devices, but noone talks about WD.After a big research found that there is some sort of timeout that have to be changed for these devices.So, on the grub boot screen, press 'e' and edit the line that ends with 'quiet splash ---' to 'quiet splash nvme_core.default_ps_max_latency_us=5500', and that's all.Finally I have to add that param to the grub config file so I dont have to add it on every boot.Everything else appear to be working fine, almost what I have already tested.
Hi! I'm new to the community, so please sorry if I made a mistake on this post. I recently bought a Inspiron 5575 which cames with AMD Ryzen5 + Radeon Vega8. It has a 1TB HDD with windows 10 pre-installed. I bought a WD BLUE SN500 NVME SSD 256GB, installed on it and wanted to install ubuntu there having a dual boot. Besides any EFI config, I just wanted to launch the "Try ubuntu", so I made a USB boot with ubuntu iso using Rufus, turn on laptop, press F12 and select USB to boot with. Grub screen appear and select "Try ubuntu", splash screen appear and after a few seconds it hangs. Do it all over again but this time pressed 'e' on the grub screen and change boot params from "quiet splash ---" to "nosplash noacpi noapic". Boot start, and after a few seconds it hangs on "Begin: Preconfiguring networking" after a few more seconds, appear some errors that worried me: "TSC found unstable after boot [...] Broken BIOS" Attached an image where you can see the last boot lines. I have read many documents here about dell and ubuntu dual boot, but no one match my symptoms. Hope someone could point me on this.   [IMAGE]
Installing Ubuntu 18.04 on Inspiron 5575