Pidgin does not appear in the notification area

[Gabor Toth]

After upgrading from Ubuntu 12.4 to 12.10 Pidgin no longer visible in notification area under the menu where the mail and gwibber is. In fact no instant messenger app is visible there.
Even when I start Pidgin does not appear there. It works but the icon does not integrate into the notification area menu.

Gabor

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: pidgin 1:2.10.6-0ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
CheckboxSubmission: 6b64e7968cc8e732e5ad2595b83d27cf
CheckboxSystem: d00f84de8a555815fa1c4660280da308
Date: Mon Oct 29 10:30:53 2012
EcryptfsInUse: Yes
InstallationDate: Installed on 2012-09-26 (32 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: pidgin
UpgradeStatus: Upgraded to quantal on 2012-10-28 (0 days ago)

[Launchpad Janitor (janitor)]

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

[David R. Hedges (p14nd4)]

In 12.10, this could be "fixed" by modifying the dconf setting for systray-whitelist, something like:

gsettings set com.canonical.Unity.Panel systray-whitelist "['all']"

In 13.04, they've broken this entirely: http://askubuntu.com/questions/253800/replacement-for-tray-icons-in-13-04 . I *think* Canonical's answer is that you shouldn't need anything more than the "messaging" indicator (looks like a sealed envelope) that turns blue if you have an unread email or IM or something else, but this is not a suitable replacement for the native Pidgin icon, which let me:
1. See at a glance that pidgin is running (though I acknowledge I can arguably visually scan the dock for a carat by its icon as well)
2. See at a glance whether I have an unread IM (not an unread message from any of the sources this icon aggregates, including email)
3. See at a glance whether I'm marked online or away (without clicking)
4. Easily set an away message with a single click from any screen/workspace/window

I imagine other people had other additional use cases that aren't captured by the very rudimentary functionality of the messaging indicator as well.

This is a regression, a loss of prior functionality.