Public bug reported:
I've installed Lubuntu 12.10 on a system with four displays arranged
horizontally totalling 6160 pixels horizontal resolution. I created a
wallpaper image that places a different picture on each screen. The left
two screens are not displayed correctly. See attached images (both
scaled to 1/3 size).
It seems like there is some kind of strange layering issue. If I click
on the desktop on the leftmost screen, I get the result shown in the
screenshot. If I then click on the second-left screen (that shows the
incorrect image), anywhere on the desktop that's showing the incorrect
picture (i.e. roughly the right half of the screen), the wallpaper
changes, so that both screens are displaying the picture that should be
shown on the leftmost screen, identically (the second screen's wallpaper
is not visible anywhere). The other screens' wallpapers display fine.
This is using "Tile the image to fill the entire screen" setting in
Desktop Preferences; other settings don't let the image span all four
screens correctly.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: lubuntu-desktop 0.45
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
Date: Fri Feb 22 11:14:26 2013
InstallationDate: Installed on 2013-02-22 (0 days ago)
InstallationMedia: Lubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
MarkForUpload: True
SourcePackage: lubuntu-meta
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: lubuntu-meta (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug quantal
** Attachment added: "Wallpaper image as it should appear"
https://bugs.launchpad.net/bugs/1131822/+attachment/3541868/+files/bgbug.jpg
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https://bugs.launchpad.net/bugs/1131822
Title:
Wallpaper displayed incorrectly on multiple screens
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