This is a counterpart to fakexinerama, but for XRandR. It hooks into libXrandr and replaces a certain, configurable monitor configuration with two virtual monitors, each of half the original's size.

You may use, redistribute and modify this program under the terms of the GNU General Public License (GPL) Version 3, in the version available under the URL http://www.gnu.org/licenses/gpl.html#.

You'll want to use this library if you have a multi-head setup, but a crappy video driver which tells RandR that there is only one big monitor, resulting in wrong window placement by window managers. Matrox Tripple Head 2 Go et al. are other candidates, where there really is only one big monitor, but you'd want to split it anyway.

With slight modifications, this library is also suited for developers willing to test multi-head behaviour without multiple monitors. Keep in mind that this library right now can not do more than split the monitor vertically in half.

Adjust the #DEFINE lines at the top of libXrandr.c to your configuration. The library will split the first screen it finds which has the resolution you supply there vertically in two. You might also have to adjust the path to the real libXrandr.so file.

Then compile using make. You will need the XRandR and X11 development packages for your distribution. Place the resulting library file and symlink in a library directory of higer priority, as /usr/local/lib. Run ldconfig to update the ld cache.

Enjoy :-)

• Make this configurable, allow more than one split, allow horizontal and not-in-half splits
• I have a memory leak in the append_fake_-methods which I don't know how to fix right now: I can't free the old allocated space for some reason, so it is likely mine is not freed either..

• https://gist.github.com/phillipberndt/7688785 For my version of Fake xinerama, based on Kris Maglione's version