What in the world is this screen?

[joneall]

I am trying to install Neon on my wife's computer and it is a mess. After a whole afternoon, I finally booted this. What in the world is it? I had managed to install a year-old version of Neon, but could not change the screen size. So I did a dist-upgrade and when I rebooted, I got this. I cannot log on from this screen. It ignores everything I enter.

This sort of thing is why I want to be damn sure that if I purchase a new computer, I can install KDE on it easilyl

[claydoh]

That is a default, un-themed SDDM login screen. Usually it only shows up when something is broken, usually when someone has installed a Plasma 5 theme for it on Plasma 6. But something else is broken.

Installing and updating from old neon images, I do not recommend. They do not test this sort of situation, and with the number of changes and updates in a year, plus juggling Ubuntu updates to keep some things from replacing neon packages, can make for funky dependency problems.

Now, you can get to a desktop manually if you want to -- ctrl-alt-r3, log in, then enter startplasma-wayland (no sudo!)
So you should be able to try updating, installing any video drivers if it is Nvidia, etc.

Can you provide any basic specs for the computer?

Was the problem an incorrect resolution, or you could not resize/scale it?


Did you try an old ISO because the current one doesn't work?



For new computers, compatibility really hasn't changed a lot, in terms of support.

Intel CPUs and most graphics should Just Work. Ultra current integrated Arc graphics, I am not sure of, and very new CPU releases can sometimes have issues, possibly.
WiFi is the same - Intel is almost always working out of the box. Anything else has a good chance of needing an external driver installed from source code or something.

AMD usually has no issues, but sometimes needs a kernel parameter added to grub for the CPU or the iGPU. Finding which one(s) is the fun part.

Nvidia, well, that seems to still be a crap shoot.

[dk9he]

Hi joneall, just will mention you are not alone here. I've exactly the same issue. It was only possible to type in the passwd, but no Enter was possible, no mouse klick,
means no login. I could just move the mouse around. The last update wasn't too old.
HW: MacBook Pro, until this update KDE neon runs great on this Laptop. The 6.5.1 wasn't a good idea....

Unfortunately, after some reboots with the same result this Loptop didn't power for the moment. Hope I can fix that soon.
Andy