Incorrectly positioned user interface elements with dual-screen setup and different screen resolutions

[Nightfall]

When an external screen (1920x1080) is attached to my netbook (1024x600), the user interface elements on the netbook's login screen are positioned incorrectly: The user selection/password entry box is located near the lower right corner of the screen instead of centered; shutdown/... buttons are not displayed.
Positioning on the external screen is correct - user selection in center, shutdown/... buttons in lower right corner.

It looks as if for both screens, 1920 x 1080 was taken as reference for user interface element positioning.

(Might be a general lightdm problem, did not test other greeters ...)

Potentially related: during boot, Plymouth's Kubuntu logo is displayed correctly (centered) on both screens; shortly before switching to the login screen, on the netbook screen it moves to the lower right corner.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: lightdm-kde-greeter 0.3.2.1-1ubuntu3
ProcVersionSignature: Ubuntu 3.11.0-17.31-generic 3.11.10.3
Uname: Linux 3.11.0-17-generic i686
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: i386
Date: Thu Feb 27 14:34:09 2014
InstallationDate: Installed on 2014-02-05 (22 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1)
MarkForUpload: True
SourcePackage: lightdm-kde
UpgradeStatus: No upgrade log present (probably fresh install)

[Harald Sitter (apachelogger)]

That'd be a setup problem I guess. Witht he bigger screen being duplicated to the smaller screen the sizing is off. If the screens were not duplicated appropriate layout would happen.

[penalvch (penalvch)]

Nightfall, thank you for reporting this and helping make Ubuntu better. Saucy reached EOL on July 17, 2014.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases

Is this an issue in a supported release?

[Nightfall (someoneelse)]

This (misplaced elements on login screen) is still an issue with Kubuntu 14.04.1 (now with a 1366x768 laptop screen).

[penalvch (penalvch)]

Nightfall, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal as it will automatically gather and attach updated debug information to this report:

apport-collect -p xorg 1285678

Please ensure you have xdiagnose installed, and that you click the Yes button for attaching additional debugging information.

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]