Thank you for taking a look.
Just recently, my wife's external monitor for her notebook won't display the PC desktop after using the FN F3 keys like usual. External monitor seems to be fine. Power works fine. It shows the desktop on the monitor for about two seconds before going black.
I've done everything, reinstall drivers, reboot, delete monitor items in Device Manager and reboot, and actually, I did manage to get it working once after that last action. But then my wife ended up putting the computer on sleep (which seemed to prompt the problem before) then, it still cut out after about two seconds. Cables are fine, power supply is fine. It just started happening. It seems like monitor troubles like this are frequent. Some miscellaneous setting in XP always goes awry for no reason after sleeping...
Here's some additional info:
- Mitsubishi Diamondcrysta RDT231WLM-D display monitor
三菱電機 三菱ディスプレイ：ワイド液晶ディスプレイ RDT231WLM-D 主な特長
- Kohjinsha notebook PC running Windows XP SP3
Until now, there has never been a compatibility problem.. At a loss to explain this. Even fiddling with the onboard graphics utility does nothing.
Any help would be greatly appreciated.
Thank you again for reading this far.