vim -g lacks scrollbars and spews critical gtk assertion warnings to the console

[Marius Gedminas]

If I launch gvim using vim -g (or vim, followed by :gui later), the GUI window lacks scroll bars, and spews a bunch of Gtk+ assertion failures to the terminal where I launched vim, every time I close a split window.

To reproduce:

   $ vim -g +'split|q|q' # or vim +'gui|split|q|q'
    ** (vim:9716): CRITICAL **: os_pager_hide: assertion `OS_IS_PAGER (pager)' failed

    (vim:9716): Gtk-CRITICAL **: IA__gtk_widget_hide: assertion `GTK_IS_WIDGET (widget)' failed

    ** (vim:9716): CRITICAL **: os_pager_set_parent: assertion `OS_IS_PAGER (pager)' failed

    ** (vim:9716): CRITICAL **: os_pager_hide: assertion `OS_IS_PAGER (pager)' failed

    (vim:9716): Gtk-CRITICAL **: IA__gtk_widget_hide: assertion `GTK_IS_WIDGET (widget)' failed

    ** (vim:9716): CRITICAL **: os_pager_set_parent: assertion `OS_IS_PAGER (pager)' failed

Compare with:

    $ gvim +'split|q|q'

which produces no warnings.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: vim-gnome 2:7.3.154+hg~74503f6ee649-2ubuntu3.1
ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
Uname: Linux 3.0.0-17-generic i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Wed Apr 4 18:33:38 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
SourcePackage: vim
UpgradeStatus: Upgraded to oneiric on 2011-10-13 (173 days ago)

[Marius Gedminas (mgedmin)]

And here's a screenshot demoing the other half of the problem: when I use :gui (or vim -g) the gvim window lacks proper scrollbars.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.