Thank You for reply. - I made the file and placed it where it should be. I logged out and in but but still started in desktop 2.
Then I rebooted but the problem seemed to be worse. Because it took a very long time - several minutes - until the desktop
appeared. And still desktop2. What was very bad I could not start the programs at all - not even a terminal. Panic arose.
- I remembered that I have downloaded and burned the latest distro a couple of days ago. - So I installed the new distro
and I left my home partition untouched. Booted which also took several minutes until the desktop appeared - in desktop2.
Distress and panic! I still could not start programs. Then I remembered that I once made a live USB with pcl on it.
I booted the usb and could update it fully. Then I could remove wmctrl.sh. Furthermore I deleted some caches and other files.
Booted from the hd again, still on 2. I made the the wmctrl.sh again. Put it back. Booted still on2. - No good.
I have different wallpapers on 1 and 2. And still it takes a horrendously long time to boot. - I then introduced a test user and if I log in on this user boot time is normal and and everything ok. - So something must be wrong in my normal home I guess.