I had the same problem. It seems that when I choose a color in the control panel it writes something like: rgb(78,154,6) in the primary color field of the scheme org.gnome.desktop.background
Changing this by any hexdecimal number fix the problem. It is worth to be mentionned that I installed the gnome3 ppa before removing it with the ppa-purge command. I don't know if the problem was present before this or not. Hope that help, nbl -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1173818 Title: Unable to set solid colors and gradients as desktop background in gnome-control-center Status in “gnome-control-center” package in Ubuntu: Confirmed Bug description: Only black background is coming ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: gnome-control-center 1:3.6.3-0ubuntu24 ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8 Uname: Linux 3.8.0-19-generic x86_64 ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 Date: Sun Apr 28 06:35:00 2013 ExecutablePath: /usr/bin/gnome-control-center InstallationDate: Installed on 2013-02-12 (74 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MarkForUpload: True SourcePackage: gnome-control-center UpgradeStatus: Upgraded to raring on 2013-04-26 (1 days ago) XsessionErrors: (nautilus:1696): GLib-GObject-CRITICAL **: g_object_set: assertion `G_IS_OBJECT (object)' failed (nautilus:1696): GLib-GObject-CRITICAL **: g_object_set: assertion `G_IS_OBJECT (object)' failed (gnome-control-center:2169): gnome-control-center-unity-WARNING **: Could not load /usr/share/themes/Adwaita/index.theme: No such file or directory (gnome-control-center:2169): gnome-control-center-unity-WARNING **: Could not load /usr/share/themes/Adwaita/index.theme: No such file or directory usr_lib_gnome-control-center: activity-log-manager-control-center 0.9.4-0ubuntu6.1 deja-dup 26.0-0ubuntu1 gnome-control-center-signon 0.1.6bzr13.04.05-0ubuntu1 gnome-control-center-unity 1.2daily13.04.09-0ubuntu1 indicator-datetime 12.10.3daily13.03.26-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1173818/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
