recently I installed Ubuntu 16.04 on Raspberry Pi 2. Then I wanted to do the Ubuntu updates with the Software Updater. I started the programm but only the pop-up came up with certain checks. The Window with the updates (e.g. Ubuntu core, Libre Office, etc) didn't came up. The pop-up stuck. I had to kill it with the task manager.
So I did apt-get update + upgrade and the updates did install well.
Then in the Software Boutique I installed Software (the alternative to Ubuntu Software Center) + the Ubuntu Software Center itself. Then I wanted to start Software, but nothing happens when I launch the software. I can start the Ubuntu Software Center but I can't type something in the search field. It's kind of inactive. The button are grayed out and nothing happens when I click on them (see screenshots below).
What can I do find the problem all 3 programs have? Software Updater. Ubuntu Software Center and Software.
I assume it doesn't have something to do with xrdp right? That the only additional software that I've installed and xrdp works fine.
Syslog has lots of errors with brltty and Baille (screenshot below). I don't know if it has anything to do with the 3 applications.
Any ideas are very welcome. Thanks