driconf is described as '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'. There are more than 10 alternatives to driconf for Linux and Windows. The best alternative is feh, which is both free and Open Source. Other great apps like driconf are hwinfo (Free, Open Source), WattmanGTK (Free, Open Source), arandr (Free, Open Source) and cpuid (Free, Open Source).
feh is an X11 image viewer aimed mostly at console users. Unlike most other viewers, it does not have a fancy GUI, but simply displays images. It is controlled via commandline arguments and configurable key/mouse actions.
read-edid is a pair of tools (originally by John Fremlin) for reading the EDID from a monitor. It should work with most monitors made since 1996 (except for newer ones with 256-byte EDID's - WiP), assuming the video card supports the standard read commands (most do).
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.