Edit: Kubuntu22.04 seems to work. Thanks for your help.
I’ve tried to install plasma onto my new Framework 16. When I installed kubuntu directly, then after the second reboot, my laptop didn’t start up again. It shows the Framework logo, but then nothing. Then I’ve tried to install Ubuntu first, and everything worked, but after installing KDE afterwards and rebooting, I’ve the same problem. Even esc doesn’t bring anything up. What am I doing wrong? Does anybody have experience?
I’ve used Ubuntu/Kubuntu 24.04
Can you be more specific about what happens when you reboot? Does it go to blank screen, a blinking cursor, or just shut itself off? Does the operating system start and just get stuck somewhere in the boot process, or does it not even get that far?
I think F12 is the BIOS key, if that helps. If it attempts to boot the operating system, you can press one of the arrow keys to see the boot log.
It shows the Framework logo for a couple of seconds (but no ubuntu or kubuntu logo), and then the screen just goes black, no cursor, nothing. But the powerbutton glows. If I press esc, nothing happens (Normally, I think it shows the output of the boot process)
I’m not sure what you mean with f12, and I haven’t tried it, but I will probably tomorrow.
From the sounds of it, the OS might not be starting at all, which is a very strange thing to happen after installing a desktop environment. My best guess is that apt uninstalled something important. As other folks said Ubuntu 24.04 is pretty unstable at the moment, so you might have more luck with Fedora, or Ubuntu 22.04 or 23.10. One thing you could try is booting into your (K)ubuntu live medium and running sudo grub-install /dev/sda, to reinstall the bootloader, just in case something broke it.
Pressing F12 while the Framework logo is visible (but before the OS starts) opens the BIOS boot menu. I assumed incorrectly that that is what you were trying to do with Escape. Trying to boot that way might help elucidate why the OS won’t start. You could also get into BIOS settings that way, or boot a USB drive.