gdm no longer displays a language list at the login screen (after clicking my username) via clicking the "Languages" drop-down list -> "Other"... It's just BLANK... However, the input languages list is displayed just fine...

I have installed language-support-ar previously, which in turn installed language-pack-ar and language-pack-ar-base. Also, language-pack-en and language-pack-en-base are installed... So what gives?

$ cat /var/lib/locales/supported.d/local
en_US.UTF-8 UTF-8
ar_EG.UTF-8 UTF-8
$ cat /var/lib/locales/supported.d/en
en_US.UTF-8 UTF-8
$ cat /var/lib/locales/supported.d/ar
ar_EG.UTF-8 UTF-8

# locale-gen
Generating locales...
  ar_EG.UTF-8... up-to-date
  en_US.UTF-8... up-to-date
Generation complete.

# apt-cache policy gdm
gdm:
  Installed: 2.27.90-0ubuntu4
  Candidate: 2.27.90-0ubuntu4
  Version table:
 *** 2.27.90-0ubuntu4 0
        500 http://us.archive.ubuntu.com karmic/main Packages
        100 /var/lib/dpkg/status

As a temporary workaround (and for testing), I edited my ~/.dmrc file and changed it's contents from:

~$ cat .dmrc

[Desktop]
Session=LXDE
Language=en_US.UTF-8
Layout=us

to:

[Desktop]
Session=LXDE
Language=ar_EG.UTF-8
Layout=us

and reloaded gdm via /etc/init.d/gdm

GDM then displays Arabic (Egypt) in the languages list upon login... and after reboot, English (US) and Arabic (Egypt) are still displayed when I click on my username because they're now cached as recently used languages..

So why isn't gdm detecting the currently installed Arabic language by itself?

I have reported this on launchpad as well, in case it turns out to be an ubuntu related bug. Though I have a hunch that it isn't ubuntu to blame, since this issue only appeared after dist-upgrade to karmic 9.10 (from jaunty 9.04), and the karmic version is the new gdm (2.27.x) which use the iso-codes list, correct?

Thanks