Tested kscreen/libkscreen1 1.0.2.1-0ubuntu0.1 from saucy-proposed. I only have one monitor here (an old 1280x1024 vga one), unplugged that one. Updated the two packages through ssh. Plugged in the monitor, 1280x1024 was the detected/set resolution, in other words correct. Going to the Display and Monitor settings and changing the resolution also works without having the System Settings crash on me.
Tested kscreen/libkscreen1 1.0.2.1-0ubuntu0.1 from saucy-proposed. I only have one monitor here (an old 1280x1024 vga one), unplugged that one. Updated the two packages through ssh. Plugged in the monitor, 1280x1024 was the detected/set resolution, in other words correct. Going to the Display and Monitor settings and changing the resolution also works without having the System Settings crash on me.