If you are a user of a package which is based upon libsdl and you have an graphic driver, which supports XRandR, you probably noticed, that this is currently not supported in Debian.
I found that annoying and therefore prepared packages, which support XRandR and - what is more - have it activated on default (which differs even from the upstream sources). The reason given why it isn't activated on default is, that there are problems with KDE, but I as an KDE user wasn't able to reproduce them (with Debian testing), so I'll guess, they are no longer present (but don't complain if they are still present for you, you've been warned!).
SDL_VIDEO_X11_XRANDR=0
or deinstall this
version of the package.Please note, that the packages below were updated and now contain two additional bug fixes; see libsdl1.2_1.2.13-4+nmu2_i386.changes for details.
$ gcc --std=c99 -o sdl_fs_test -lX11 -lXrandr -lSDL
-Wl,--as-needed sdl_fs_test.c