Using 17.04 64bit (Unity), I tried skypeforlinux 5.4.0.1 from official repo.
After the first run I closed it to the status indicator. Unfortunately, no indicator is shown, the 3 processes are running and need to be killed manually. If started again by dash, more instances get launched. No way to access the program.
I un-installed and re-installed to no avail.
So, I downloaded Ghetto-Skype, and installed it. It is workable; I still have no indicator, but, I can get to the window by dash (or lock the icon to launcher). Skype test calls are possible, chatting with other PC and Android, also.
electron
,libgnome-keyring
,asar
,nodejs
,npm
andpython
or just downloading the .deb file and installing it with command prompt usingsudo dpkg -i skype_for_linux.deb
and thensudo apt-get install -f