Installer frozen, stuck at 100% CPU every time I enter 'Your name'

[vanvugt]

What happened?

On a Surface Laptop 4, every single time I try to install Ubuntu 23.10(.1) it freezes while I type my full name under 'Your name'.

The ubuntu_desktop_installer process is stuck at 100% CPU. It seems to be both the primary thread and the io.flutter.ui thread that are both using 100% CPU.

What was expected?

I can install Ubuntu.

Steps to reproduce

Boot Ubuntu 23.10 from USB. Seems every install option I try results in the same bug and the only common factor is the laptop (Surface Laptop 4).

Workaround

Fill in "Your computer's name" before "Your name".

[vanvugt]

Still happening with noble 20231124, but exactly the same USB stick installs successfully on a Lenovo and on an HP. So I think the bug is rare enough to remove the critical tag.

[phjbouwhuis]

I had the same issue, but installing using only essentials worked for me.

[vanvugt]

Still happening in noble 20240125. Looks like there's some infinite loop in how "Your name" influences "Your computer's name".

[vanvugt]

Hilariously, booting the installation that froze part way through gives me an unthemed blue default GNOME initial boot experience. And following it through works. I get an Ubuntu installation in the end. Minus the hostname because GNOME doesn't ask for that.

Theory: Is this what happens if the install finishes in the background so fast you haven't entered your account details yet?

[vanvugt]

Workaround! Just enter your computer's name before your name. There's something broken in the computer name field if you let it auto-populate (see also #2394 so maybe a buffer overrun?).

[mjburling]

Workaround! Just enter your computer's name before your name. There's something broken in the computer name field if you let it auto-populate (see also #2394 so maybe a buffer overrun?).

Confirming the workaround after experiencing the very same things on my Surface Laptop 3 😉. Thanks!

[vanvugt]

Moved to https://bugs.launchpad.net/ubuntu-desktop-installer/+bug/2056169