After trying on some gnome extensions my desktop looks like this:
When I maximize something, it fits well to the whole space, but when the desktop is showed, this white line is showed too. It seems like the wallpaper doesn't want to touch the top bar and gives it some space. It happens with all the wallpapers I tried. Someone could tell me what can I do to fix it? It worked well before trying the extensions.
I've noticed that if I turn off "Have file manager handle the desktop" in Gnome advance settings, the bar disappears but icons on the desktop disappear, too. If I change the Gtk+ theme the bar becomes narrower or changes its colour.
The extensions i've tried were "Music Integration, Overlay Icons, Pidgin Integration, Remove Accesibility and Remove User Name" I've uninstalled them one by one but at the end, the annoying white line remains there, even whit all extensions uninstalled. I've tried also to reset Gnome3 to initial settings doing
rm -rf .gnome .gnome2 .gconf .gconfd .metacity but it seems nothing happened at all.
I tried installing a new gnome shell theme, it didn't work either.