My company recently purchased the XPS 9310 2-in-1 for me which had Windows home on it. This is a development machine, so I wiped the drive and installed Ubuntu 20.04 LTS. I have no need for Windows on this system. It was installed using LVM and LUKS.

The issue is that the laptop will just randomly freeze out of nowhere. When this happens, nothing works and I am forced to do a hard-poweroff by holding the power button for 10 seconds. The trackpad stops responding, the keyboard doesn't work, and the screen just stays completely frozen. There is no specific indication of what causes the freezing, it is 100% random.

I ran the Dell diagnostics from the BIOS, and everything came back A-OK. I am running the latest BIOS, v2.2.1. Secure boot is turned off. I was running kernel 5.8.0.33 (the latest stock kernel in 20.04 LTS).

I have recently updated to Ubuntu 21.04 and installed it using ZFS with encryption. It's using kernel 5.11.0.18 and seems to be running a bit better. However, this morning, it did the same thing and just froze up, causing me to hard-reboot the machine again.

I am at a complete loss as to what's causing the freezing/locking up. The system isn't heating up whatsoever, so it doesn't seem like an overheating issue. If anyone has any insight regarding this, it would be greatly appreciated. I really love this machine when it runs.