Question: I have HP ELiteBook , this problem has become a routine headache for me (after every 20, 25 minutes\_ - While using, suddenly everything hangs and black out goes around and then a message pop at the task bar below that display driver stopped ...and successfully recovered but the hangs and black screen continues and then the Blue Death Screen comes" and then i have no other option but to restart

Is this a driver problem ? Hardware problem ? what should I do Please be specific , no stories and theories

Answer: 
I had the same issue with mine, so I contacted apple support. when you are in System Preferences>Displays - hold the option key while clicking on scaled, all the resolutions will appear again. I hope this helps!
I had the same problem on my 3840x1024 Matrox TripleHead2Go display. After upgrading to Mavericks, it detected the display as 1280x1024 with no option in Display Preference to select my previous resolution.

I solved the problem by installing "[SwitchResX](https://www.macupdate.com/app/iphone/8355/switchresx)" which allows me to manually define customised resolution for each display.