Upgrade from ppa now can't login from plasma

[Mebunto]

Hi, I have a stable system running 12.10 lts. A bunch of upgrades came in from the ppa and now I can't log in from the plasma welcome screen. I can log in at the command line though.

Can anyone advise how to fix?

I have run apt-get -f install but no change

[Guest]

This happened to me also. It turned out that I was missing a couple of packages after the upgrade so try installing
plasma-scriptengines and then kde-workspace if they are missing. That was what fixed it for me anyway.

[Mebunto]

Thanks. How did you find out those packages were not installed? I tried it rebooted and it hasn't worked. Thanks anyway.

[Guest]

Sorry it didn't work for you. I found the info I needed on the launchpad bug pages; maybe a bit more detailed than what I wrote before but probably not anything too different so I don't know how much use it will be. Sadly, I'm no expert so I don't think I can be anymore use - I just know it worked for me. Good luck!

Google for "launchpad bug 1121142" since I'm not allowed to post links yet.

[Mebunto]

great thanks for the quick response. I'll work my way through it. Going out now but I'll report back later.

[Wallace]

Not sure if this will help, but I had a similar problem with 12.04 intermittently booting to command prompt and not gui. I upgraded my Nvidia drivers and it fixed all.

[Mebunto]

I found a likely candidate for where it went wrong:

debconf: unable to initialize frontend: Passthrough
debconf: (Cannot connect to /tmp/qapt-sock: No such file or directory at (eval 24) line 3)
debconf: falling back to frontend: NonInteractive
Unpacking replacement kdm ...
Preparing to replace kde-workspace-kgreet-plugins 4:4.10.1b-0ubuntu1~ubuntu12.0.4.2~ppa1 (using .../kdm_4%3a4.10.2-0ubuntu1~ubuntu12.04~ppa3_amd64.deb) ...
Unpacking replacement kde-workspace-kgreet-plugins ...

I tried to reinstall kde and that didn't work ...

[Guest]

Same issue.

[Mebunto]

https://bugs.kde.org/show_bug.cgi?id=318053

I have filed a bug but no answer

[dequire]

I had a similar issue (I think...) after the 12.04 upgrade to KDE 4.10.2 and selecting the Light DM greeter. Turns out I had to select "Use An Empty Workspace" or something similar the first few times I logged in. Now it all works fine. This probably won't help but I'm posting in case it might. Good luck!

[Mebunto]

Obviously the gods of computing needed a rest. I selected the "default (previous)" option when I logged in and it has worked. I am relived if not really annoyed. Anyway, I will get over it. Thanks to those who tried to help.