When i boot into my system which use this monitor: http://www.samsung.com/us/computer/monitors/LS24PUHKFV/ZA-specs set the OS the resolution correctly to Full HD. This scale is wrong on my display, the sides are cut-off, when i trigger spectacle, the screenshot app, display that the screen in the correct way. Here are my sys specs: https://gist.github.com/anonymous/9dfa08247d958273cab5
All works fine, once i set the resolution to 1650 x 1050
Please attach your xorg log and dmesg output.