This is interesting: I tried to boot linux-image-4.15.0-23-generic again and it did work now and after trying to boot linux-image-4.15.0-24-generic again, this did work as well and everything seems to be fine again...
This is interesting: I tried to boot linux-image- 4.15.0- 23-generic again and it did work now and after trying to boot linux-image- 4.15.0- 24-generic again, this did work as well and everything seems to be fine again...