This was fixed in quantal with the following commit: http://cgit.freedesktop.org/xorg/xserver/commit/?id=1bf81af4a6be1113bcc3b940ab264d5c9e0f0c5d
The only thing is you need to specify the panning resolution when using the scale parameter. For example, instead of using the following to scale a 1024x600 netbook screen: xrandr --output LVDS1 --scale 1.25x1.25 you need to use: xrandr --output LVDS1 --panning 1280x750 --scale 1.25x1.25 ** Also affects: xorg-server (Ubuntu Precise) Importance: Undecided Status: New ** Also affects: xorg-server (Ubuntu Quantal) Importance: Undecided Status: New ** Also affects: xorg-server (Ubuntu Raring) Importance: Low Status: Triaged ** Changed in: xorg-server (Ubuntu Quantal) Status: New => Fix Released ** Changed in: xorg-server (Ubuntu Raring) Status: Triaged => Fix Released ** Changed in: xorg-server (Ubuntu Precise) Status: New => Triaged ** Changed in: xorg-server (Ubuntu Precise) Importance: Undecided => Low -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/883319 Title: xrandr --scale restricts area in which mouse moves Status in X.Org X server: Confirmed Status in “xorg-server” package in Ubuntu: Fix Released Status in “xorg-server” source package in Precise: Triaged Status in “xorg-server” source package in Quantal: Fix Released Status in “xorg-server” source package in Raring: Fix Released Bug description: in kubuntu (and ubuntu) 11.04 i used to enlarge my laptop screen like so xrandr --output LVDS1 --scale 1.2x1.2 this worked fine: the desktop scaled to larger size correctly . After upgrading to 11.10, in kde the desktop still resizes correctly, but the movement of the mouse is restricted to an area equal to the screen size *before* issuing the scaling command. .. Ie let's say the mode is 1366x768 and I do xrandr --output LVDS1 --scale 1.2x1.2 the screen size changes to 1640x922 but the mouse moves in an area the size of 1366x768 in the top left of the screen and then 'hits a wall' preventing it to move. I also tried ubuntu 11.10 with gnome: here the screen also resizes, but I have the same issue with the mouse, and the extended area of the desktop is black... Some time ago there was a similar issue, which was resolved later. Now it seems to be back... jos@samsungsucks:~$ lsb_release -rd Description: Ubuntu 11.10 Release: 11.10 jos@samsungsucks:~$ xrandr --version xrandr program version 1.3.5 Server reports RandR version 1.3 To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/883319/+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