lxrandr is described as 'LXRandR is the standard screen manager of LXDE. It manages screen resolution and external monitors. You can plug in another screen into LXDE or choose to use a big screen projector. Local screen and extenal screen can be used at the same time' and is an app in the OS & Utilities category. There are four alternatives to lxrandr for Linux and Windows. The best alternative is arandr, which is both free and Open Source. Other great apps like lxrandr are driconf (Free, Open Source), Xdiagnose (Free, Open Source) and Dell Display Manager (Free).
DRIconf is a configuration applet for the Direct Rendering Infrastructure. It allows customizing performance and visual quality settings of OpenGL drivers on a per-driver, per-screen and/or per-application level.
Dell Display Manager enhances everyday productivity through comprehensive management tools giving you optimal front of screen experience, efficient display management and easy, effortless multitasking.