Why are the printing setting different in Gnome Shell and Unity for Ubuntu 11.10?
I believe this may even be a bug - more than a question. But I want to refine my questions before posting them at Launchpad.
Under Ubuntu 11.10, Unity had a printing menu that looks like this:
Yet in the Shell, it looks rather like this:
I've connected my laptop, a Dell Inspiron 1525, to my University's wireless printing system (LPD). It was very simple under Ubuntu 10.04, and also after upgrading to Ubuntu 11.10. it was quite easy well.
The problem is - under Unity it worked out-of-the-box (just as it was in 10.04), yet under Gnome Shell it didn't.
Furthermore, printing under Shell doesn't send it to print, yet under Unity it prints just fine..
I like both DE - but prefer Shell as of today. Why is the printing issue different..?
You're actually looking at two separate applications. The screenshot at the top is
system-config-printer
(called "Printing" in the shell) and the screenshot at the bottom isgnome-printers-panel
(called "Printers" -- but they may have the same name in your language!). Both are available in both desktop environments.The latter one is probably supposed to replace the former in Gnome 3, but as you have noticed, it isn't as functional as the old one (yet). That explains why both are installed.
I can't explain why printing doesn't work in Gnome Shell. Do you still experience problems if you use system-config-printer to set up your printer in Gnome Shell?
A nice way to get around this is to make the old printer settings launcher visible in Gnome Shell is to edit the launcher directly:
and change the line
NotShowIn=KDE;Gnome;
toNotShowIn=KDE;
.Also, as Timo mentioned above, the name of the new and the old printer settings launchers may be the same, so you may also want to change the line
Name=Printers
to something likeName=Advanced Printer Settings
.Unity and Gnome Shell are not different desktop environments. For both, the DE is Gnome 3, and the configuration of printing and other system things should be done using the same dialogs with both. They're not supposed to provide different configuration tools.
However, the transition to Gnome 3 is not 100% complete. I'm not entirely sure why, but Ubuntu seems to have overridden the new printing dialog, using the old one instead. This is a weird bug that I can confirm. I would assume that there is something in the session definitions that are missing something, and I would be seriously surprised if there was an actual issue with Unity and Gnome Shell themselves. But since the "gnome-shell" package provides the Gnome session, you should still file a bug at that package. In other words, I can confirm that clicking on "printers" in gnome-control-center when you run it from the "Gnome" session is different than doing the exact same thing from the "Ubuntu" session. No doubt it is a bug, but I don't know the cause of it.
As a temporary fix, in order to run the correct dialog while in the Gnome session, press alt+f2 and enter
/usr/share/system-config-printer/system-config-printer.py
@Timo Kluck the gnome shell configure app is invoked with:
gnome-control-center printers
You can edit the printers in gnome shell by running
system-config-printer
changes are carried across desktop environments.But it is a problem that needs to be rectified.