[SOLVED] SDDM fails at boot - Debian 9.5 KDE

[L_V]

I did not write "modprobe -a nvidia", but...

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modprobe -a

[Eyvil]

I know, but then I got this messege:

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modprobe: ERROR: missing parameters. See -h.

So I thought you wanted me to think a little bit about how to using the command and adding the missing parameter by myself. Sorry.

[L_V]

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dpkg -l | grep nvidia

Can you try to purge all related to nvidia, then reinstall ?

[Eyvil]

Finally, this was it. Thanks for all your help! The best thing, I've learned some things today.

I'm now using the Kernel from stretch-backports, I hope I didn't regret this decision later.

[L_V]

You're welcome man.