Meanwhile the problem also occoured if using "Switch from <user>...". Maybe there is some timing issue involved?
Finally i have installed all updates from the x-updates ppa [1] and the problem seems to be gone.
[1] https://launchpad.net/~ubuntu-x-swat/+archive/x-updates
Meanwhile the problem also occoured if using "Switch from <user>...". Maybe there is some timing issue involved?
Finally i have installed all updates from the x-updates ppa [1] and the problem seems to be gone.
[1] https:/ /launchpad. net/~ubuntu- x-swat/ +archive/ x-updates