I have similar problems, but I don't even need to switch activities manually. Each time I start KDE, I just have to wait a few seconds and then I get the message
"We are sorry, KDE Activity Manager close unexpectedly.
[...]
Details: Executable: kactivitymanagerd PID: 4627 Signal: Segmentation fault (11)"
It doesn't seem to affect anything. When I close the dialog, activities still work (although I don't use them), but this dialog is kinda annoying.
System: Gentoo Linux AMD64, KDE 4.8.0 (didn't happen with 4.7.4).
I have similar problems, but I don't even need to switch activities manually. Each time I start KDE, I just have to wait a few seconds and then I get the message
"We are sorry, KDE Activity Manager close unexpectedly.
[...]
Details: Executable: kactivitymanagerd PID: 4627 Signal: Segmentation fault (11)"
It doesn't seem to affect anything. When I close the dialog, activities still work (although I don't use them), but this dialog is kinda annoying.
System: Gentoo Linux AMD64, KDE 4.8.0 (didn't happen with 4.7.4).