Troubleshooting • Raspberry Pi Os Lite 64-bit Trixie - KDE Plasma issues (CM5)

Hi,
I have an issue with KDE Plasma, when I install it on Raspberry Pi Os lite 64-bit (Trixie) and use it with a CM5. I need some pointers to identify the root cause and solve the issue.

What I would like to do:
I would like to install KDE Plasma on Raspberry Pi Os lite to use it with a CM5 is a light weight Desktop replacement.

What have I done?:
- Install Raspberry Pi Os 64-bite lite on a micro sd card (and in other cases on a nvme SSD)
- Put the card in the carrier with the CM5, start it, install all updates
- Install and run tasksel -> select KDE Plasma
- Install and run lightdm -> choose sddm
- Run raspi-config and set "Boot to desktop"
- Reboot

The problem:
- The system will not boot into the desktop environment. It will just display the "Boot text" (Messages, in which the status of the different software and services is displayed)
- If I try to ssh into the system, it works and I can use the system.

Troubleshooting I already did:
- Test the same process with Bookworm -> It works fine
- Test Trixie (light) with the above steps with a CM4 in another carrier -> It works fine
- Install Trixie with desktop environment and repeat the above steps with a CM5 -> It works fine
- Perform the above steps except "setting the boot mode to desktop". After reboot enter -> The KDE Plasma desktop appears and works fine.

I think, that maybe the login-manager does not start correctly or something like that. But I do not know, how I can troubleshoot the issue any further. Does anyone know, which software may cause the issue o where I can find logs to trace the issue?

Statistics: Posted by PaperCodeDev25 — Thu Feb 12, 2026 2:47 pm — Replies 0 — Views 27

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