Comment 4 for bug 137205

When I look at where vim searches for plugins, I get

:set runtimepath
runtimepath=~/.vim,/var/lib/vim/addons,/usr/share/vim/vimfiles,/usr/share/vim/vim71,/usr/share/vim/vimfiles/after,/var/lib/vim/addons/after,~/.vim/after

While, in a shell, it seems vim-latexsuite is not installed in a path searched by vim:
# locate latex-suite
...
/usr/share/vim/addons/ftplugin/latex-suite
...

AFAIK, to find vim-latexsuite, vim should look in /usr/share/vim/addons/, which it does not. OR vim-latexsuite should be installed in /var/lib/vim/addons/, which it is not...

Continuing this reasoning, adding the following to my .vimrc should fix it:
set runtimepath+=/usr/share/vim/addons/

Opening a .tex-file after making this modification, things now work...

(Oh, and I had vim-full installed, but vim-latexsuite still did not work for me...)