Hello,
Edit (Nov. 18, 2025): For users having graphic crash while swapping plasma6-sddm for sddm.
This was tested 15 Nov., 2025 on laptop Vivobook_ASUSLaptop M1605YA, AMD Ryzen 5 7530U with Radeon Graphics. This is an older ROME system originally installed from ISO #3243. This worked for me.
Users that have heavily customized systems may encounter difficulties. Is so remember who did the customizing because we likely will need to know exactly, exactly, what you have done to your system.
I did not do this sooner because I did not have time. Apologies for that. But I had to get some things done with Ecuadoran government and so forth.
Requirements:
I have Searched the forum for my issue and found nothing related or helpful
I have checked the Resources category (Resources Index)
I have reviewed the Wiki for relevant information
I have read the the Release Notes and Errata
OpenMandriva Lx version:
Desktop environment (KDE, LXQT…):
KDE Plasma6
Description of the issue (screenshots if relevant):
Users having problems because of change from plasma6-sddm to sddm.
Relevant informations (hardware involved, software version, logs or output…):
This is a more complex upgrade than we sometimes see. If you want to avoid problems perhaps this will help. Run these commands in order:
sudo dnf clean all
sudo dnf swap plasma6-sddm sddm
If you get a black screen after the above command you will have to shut down the computer, boot in to console mode, login and run:
sudo systemctl enable sddm
And to be sure sddm is enabled run:
sudo systemctl status sddm
reboot
sudo dnf swap plasma6-sddm-theme-breeze sddm-theme-breeze
dnf swap plasma6-sddm-kcm sddm-kcm
rpm -qa | grep sddm
You want to see this output:
$ rpm -qa | grep sddm
sddm-0.21.0-11.znver1
sddm-theme-breeze-6.5.2-1.znver1
sddm-kcm-6.5.2-1.znver1
Now we will upgrade the kernel:
sudo dnf up kernel-desktop
Now we do the rest of the upgrade. For this you must use the dsync or distro-sync command, it is advised to also use the option --allowerasing like this:
sudo dnf dsync --allowerasing --refresh
reboot
Note: On my test system this removed dnfdragora. I don’t care about this as I use the command line for package management. If users wants a GUI package manager install dnfdrake.