Vim not working without sudo via ssh

I can no longer use vim on my server via ssh without the sudo prefix.

commands that failed silently (never end) :

touch foo # works fine: I do have writing permissions in that folder
vim foo # fail
vim # fail

everything works with :

sudo vim foo
sudo vim

1 Answer

Ok, here was the issue :

I was logged with ssh -Y option, which enable trusted X11 forwarding, as described in man ssh :

 -Y Enables trusted X11 forwarding. Trusted X11 forwardings are not subjected to the X11 SECURITY extension controls (Debian-specific: This option does nothing in the default configuration: it is equivalent to “ForwardX11Trusted yes”, which is the default as described above. Set the ForwardX11Trusted option to “no” to restore the upstream behaviour.This may hange in future depending on client-side improvements.)

Connecting without that option solved it somehow.