1. The logout menu offers me only a logout button.
Buttons for restart,
shutdown, suspend to RAM, and suspend to disk are missing at the moment. I
suppose this is because I'm using gdm instead of kdm, isn't it?
Correct.
2. After
the start of KDE 8 error messages appear. I cannot remember the content,
but they all have the same content, and it wasn't something critical.
The more kde3 related packages you install the more you'll risk finally
tearing holes in the dependencies plus path problems.
This is far from a clean solution and once we have kde3 packages you probably
should reinstall to avoid future problems.
My 0.02.
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