I'm writing this short piece in hope it helps some people who have trouble finding their monitor in xf86config utility.
Todays modern day electronics industry is more or less based on taking one manufacturer's product and rebranding it to their own name. Ex: Dell -- Dell is a big player in the hardware re-branding game, most of their peripherals are re-branded equipment. (Monitors, scanners, printers etc.)
Unfortunately what occurs is that your specific "Dell" monitor or another Manufacturer's monitor is not listed in the xf86config database yet, and you may to guess the correct horizontal and vertical frequencies of your monitor. Which if done wrong could severely limit your use of the monitor or by overestimating it's abilities destroying it.
Fortunately the US and other countries I believe require most electronic communication devices, including monitors, to be inspected by the FCC or similar organization. By having these devices checked by the FCC, and subsequently passed, they are issued a FCC ID which uniquely identifies the real
manufacturer. So in order to determine what your monitor can real handle you must look up the FCC ID which is printed on the back of the monitor(usually). Using the FCC ID you can lookup the actual manufacturer and possibly use that as the manufacturer listed in the xf86config monitor database. FCC-ID lookup(https://gullfoss2.fcc.gov/prod/oet/c...ericSearch.cfm
). If that manufacturer is not listed Google the FCC ID to find your monitor under another brand.
Using my monitor as an example:
FCC ID: MDZAT897
Cybermax CX900N (According to the exterior of my monitor)
Amtran Technology Co Ltd (Actual Manufactuer)
MaxTech XT-9881 (Re-brander that was listed in xf86config database)
Hopefully this (not so small anymore) post may help people get the most out of their monitor that they paid so much for.