Boot – Fix Laptop Rebooting After Selecting Grub Entry on Live USB

Possibly related items

The following question has the same exact behaviour as me. They suspected bad USB drives, but that is not my case as I have been trying 5 different ones I have laying around. They work on other laptops I own (older models).

• Live USB hangs after selecting GRUB menu entry — new PC
• https://www.reddit.com/r/archlinux/comments/tixdun/cant_boot_live_usb_on_new_laptop/ (someone very recently had the same issue as me, on the same model)

What are my PC specs?

I have two laptops, same behaviour:

• Asus Flow X13 (2021). Nvidia 3050, AMD Ryzen 9 5900HS, 16 gb ram
• Asus Flow X13 (2021), Nvidia 3050Ti, AMD ryzen 9 5900HS, 32 gb ram

What happens?

1. I plug in my newly created Ubuntu USB drive to my machine
2. I boot from the USB drive, I select "Ubuntu" from the grub menu
3. I get a blank screen. After a few seconds, the machine just reboots. Removing grub entries like "quiet", shows me text saying: Booting command list, but no more output.

What have I tried?

• I have tried to modify the grub boot entry on the live USB by pressing e and then add items like nomodeset, modprobe.blacklist="nouveau", nouveau.modeset=0 – that in hope for it being GPU related. No luck.
• I have tried both of my laptops, with same behaviour
• I have downgraded my BIOS from v409 to V408. No luck.
• Made 190% sure that Secure boot is off.
• Tried 5 different USB drives
• Been using different tools to flash the Ubuntu images; Rufus, Balena Etcher, YUMI, UUI
• Been trying 20.04, 21.04 and 21.10 with same results.
• Linux mint 20.3 boots without issues from Live USB.

My question

I am in a situation where I am lost on where to go next. I have tried to get all the information I possibly can. What is Ubuntu doing differently from Linux mint? How can I proceed to identify the issue?