@elextr not sure why the name says 14.04 but if you use the filter it will list the packages for 18.04/bionic:
https://launchpad.net/~geany-dev/+archive/ubuntu/ppa?field.series_filter=bio...
@laoshaw are you using Wayland? It seems to be causing a fair number of issues. As per #2105 you could try to set the `GDK_BACKEND=x11` environment variable and see if it helps.