On Ubuntu 10.4 with NVIDIA drivers I have dual monitors setup with TwinView. How do I configure a single wallpaper to span both monitors? Right now the same wallpaper is replicated on both monitors.
You can't. Lucid Lynx (your Ubuntu version) has lost this capability, and a bug has been filed.
Seems like there is a temporary fix already:
- Set desired wallpaper as you usually do
- Execute this command in the console:
gconftool-2 --set "/desktop/gnome/background/picture_options" --type string "spanned"
- Do the dance
Update for future searchers: As of Ubuntu 10.10 (Maverick), you now have the "Span" option in the Appearance/Wallpaper Control Panel. For best results, be sure to create your wallpaper to be the exact pixels of your displays combined.
E.g. for two 1280x1024 monitors, use a wallpaper with size 2560 x 1024 -- otherwise it will scale and center your wallpaper to fit.
I have posted a script over in the Ubuntu forums and linux questions forums that addresses this problem (at least in my case) that uses imagemagick to resize 2 background images and stitch them together, and then change the background on a timer. Both images are random from an index file the script creates.
In my case it is for Twinview where both monitors are at the same resolution.