x2x uses geometry of "from" server for "to" server

[Konstantin]

I have a laptop with an external screen set up as dual head display. The screens have different resolutions, so the desktop is not rectangular, but has a "dent" since the vertical resolution of the built in screen is less than the one of the other.

I use x2x to connect to another computer that has only a single screen. I du this by

ssh -X other_computer_name x2x -west -to :0.0

x2x uses the general shape of the dual head setup (from server) and assumes it on the single head (to server). The result is, that there is a section of the screen, that is not accessible with the mouse.

note that x2x seems to get the resolution right, but applies the shape of one desktop to the second in a scaled fashion.

I tried to illustrate it using ascii art (use a font with fixed width).
This is the first screen setup:

********************* ***************
* * * *
* * * *
* * * *
* * * *
* * ***************
*********************

This is the second screen. The "XXXX" mark the area the mouse can not reach.
*********************
* *
* *
* *
* *
* XXXXXXXXX*
*********************

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: x2x 1.27.svn.20060501-4
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
Uname: Linux 3.2.0-25-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
Date: Fri Jun 15 13:30:15 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
SourcePackage: x2x
UpgradeStatus: No upgrade log present (probably fresh install)

[Konstantin (list-kseiler)]

Launchpad messed up the ascii art. So I added it as an attachment.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Luc.Deschenaux (luc-deschenaux)]

I have a vertical screen on the left and an horizontal screen on the right.

When I switch inputs for the screen on the right and I ssh x2x to the corresponding machine, I can only reach an area equal to the shape of my two screens, rescaled to fit into the screen on the right.

[Hil (sargenthp)]

I noticed that I am unable to get to the last couple pixels of my bottom and right screen.

Makes it hard to use Cario Dock when I cannot get to the bottom of the screen to show the dock.

Also the mouse accelleration is much faster on the "to" display, especially moving left to right vs up and down.