[UIFe] Remove "Force fallback mode" from the system settings

Bug #825250 reported by Pete Goodall on 2011-08-12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
gnome-control-center (Ubuntu)
Sebastien Bacher
Sebastien Bacher

Bug Description

If you go to the GNOME Control Center and start "System Info" there is a Graphics option. Inside there is an option to "Force fallback mode". I have been using this to try using Ubuntu 2D, but the option only works when logging into GNOME Shell. Therefore, to avoid confusion we should not display this option when not using GNOME Shell. Yes, this is somewhat advanced but we have a very technical audience and this could cause a lot of confusion and wasted time.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-control-center 1:3.1.4-0ubuntu5
ProcVersionSignature: Ubuntu 3.0.0-8.10-generic 3.0.1
Uname: Linux 3.0.0-8-generic x86_64
Architecture: amd64
Date: Fri Aug 12 15:30:01 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110728)
 PATH=(custom, user)
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)

Pete Goodall (pgoodall) wrote :
Changed in gnome-control-center (Ubuntu):
assignee: nobody → Canonical Desktop Team (canonical-desktop-team)
importance: Undecided → Medium
status: New → Triaged
Martin Pitt (pitti) wrote :

Alternatively, we could actually make this work for the ubuntu-2d session (unity-2d) as well? I'm fine either way.

Changed in gnome-control-center (Ubuntu Oneiric):
assignee: Canonical Desktop Team (canonical-desktop-team) → Rodrigo Moya (rodrigo-moya)
Pete Goodall (pgoodall) wrote :

I'm fine with making it work for Ubuntu 2D as well. I guess my position is we should either make it work with Ubuntu 2D or not show it when not in GNOME Shell.

Sebastien Bacher (seb128) wrote :

I will have a look to this one

Some notes:
- the code is in cc-info-panel.c
- gnome sessions are "gnome" and "gnome-fallback"
- unity sessions are "ubuntu" and "ubuntu-2d"

Changed in gnome-control-center (Ubuntu Oneiric):
assignee: Rodrigo Moya (rodrigo-moya) → Sebastien Bacher (seb128)
summary: - Remove "Force fallback mode" when not using GNOME Shell
+ [UIFe] Remove "Force fallback mode" from the system settings
Sebastien Bacher (seb128) wrote :

That patch make the code handle the unity and unity-2d sessions, it's not enough though since the feature write a key which is used only when gnome-session has no --session argument used, or in Debian and Ubuntu our session all use --session, it means the feature is broken under gnome-shell or unity, I would suggest just dropping it and use the login screen selector.

Sebastien Bacher (seb128) wrote :

Debian patch, I suggest we use that for Oneiric:

" * 90_force_fallback.patch: new patch. Disable the “forced fallback
     mode” switch, since we already provide a xsession file for it in

the feature doesn't even work under gnome-shell current because as explained in the previous comment it only work if you don't specify a session but use the system default one

Jeremy Bicha (jbicha) wrote :

+1 from the Docs Team; we don't document this button. It doesn't work and it's not worth trying to make it work at this point in the release cycle. In fact, it seems GNOME has moved the session chooser button from the GDM login screen to hiding in this out-of-the-way location which makes things less user-friendly in my opinion.

Sebastien Bacher (seb128) wrote :


Changed in gnome-control-center (Ubuntu Oneiric):
status: Triaged → Fix Committed
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package gnome-control-center - 1:3.1.92-0ubuntu6

gnome-control-center (1:3.1.92-0ubuntu6) oneiric; urgency=low

  * debian/patches/90_force_fallback.patch:
    - Debian patch, disable the “forced fallback mode” switch, since
      we already provide a xsession file for it in gnome-session-fallback.
      The option is also incompatible with how sessions rare started in
      Debian or Ubuntu (using gnome-session --session) (lp: #825250)

  [ Jeremy Bicha ]
  * debian/patches/10_keyboard_layout_on_unity.patch: Fix capitalization
  [ Rodrigo Moya ]
  * debian/patches/10_keyboard_layout_on_unity.patch:
    - Use a different icon for region panel, since it was the same than
  * debian/patches/04_add_theme_selection.patch:
    - Ignore not-installed themes (LP: #856824)
    - Add Adwaita to the list of available themes (only shown if installed)
 -- Sebastien Bacher <email address hidden> Fri, 23 Sep 2011 18:07:49 +0200

Changed in gnome-control-center (Ubuntu Oneiric):
status: Fix Committed → Fix Released
Dmitry Shachnev (mitya57) wrote :

Why didn't you remove the whole "Graphics" tab? Now it shows "Driver" which is also present in "Overview" tab and "Experience" which doesn't make sense on Ubuntu.

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