Right now on my machine, with the default wallpaper: timestamp of the cache: $ ls -l ~/.cache/wallpaper/zoom_1920_1080__usr_share_backgrounds_warty-final-ubuntu.png -rw-r--r-- 1 didrocks didrocks 392625 2011-04-19 09:23 /home/didrocks/.cache/wallpaper/zoom_1920_1080__usr_share_backgrounds_warty-final-ubuntu.png
timestamp of the source image (0.31.9) $ ls -l /usr/share/backgrounds/warty-final-ubuntu.png -rw-r--r-- 1 root root 231208 2011-03-23 23:34 /usr/share/backgrounds/warty-final-ubuntu.png So, I created ubuntu-wallpapers 0.31.9ppa1 with a totally new wallpaper (still warty-final-ubuntu, expressing all my artistic creation writing "BRAND NEW!" on it ;) You can find it in my ppa: https://launchpad.net/~didrocks/+archive/ppa When I install it, I see the wallpaper changing, showing a nice "Brand New!". That's also confirmed by the timestamps: $ ls -l ~/.cache/wallpaper/zoom_1920_1080__usr_share_backgrounds_warty-final-ubuntu.png -rw-r--r-- 1 didrocks didrocks 670582 2011-04-19 09:30 /home/didrocks/.cache/wallpaper/zoom_1920_1080__usr_share_backgrounds_warty-final-ubuntu.png $ ls -l /usr/share/backgrounds/warty-final-ubuntu.png -rw-r--r-- 1 root root 713318 2011-04-19 09:28 /usr/share/backgrounds/warty-final-ubuntu.png Any hint? This should reproduce the upgrade case (we are using nautilus in the gnome session, but it's calling the same library, and if, after this, I try to start gdm (using g-s-d), I see the new wallpaper as well. Can you try with the wallpaper asset in my ppa (I only changed warty- final-ubuntu.png) For Jonathan, here is the screenshot :) PS: the exact same code is now in GNOME3 (I ported it, but no change at all in the logic) and there is no bug opened against it. ** Attachment added: "Wallpaper after the upgrade." https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/746028/+attachment/2065751/+files/wallpaper.png -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/746028 Title: Edubuntu: Wallpapers are not updated on upgrade to Natty -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs