Very recently my desktop decided to suddenly downgrade my lovely 1680x1050 resolution to a paltry 1024x768.
The monitor in question is a 22" Digimate L-2280WD. I'm currently using it on a Windows 7 x64 Pro build with 8GB RAM and a 1GB GTX 460. Monitor is connected to GPU via DVI-I cable.
Now while I boot instead of the fancy Windows 7 loading screen (the one with part of the Microsoft logo flying into the centre) I get a green loading bar akin to Windows Vista's. Upon login I am unable to increase resolution beyond 1024x768. Can't do it on Windows Control Panal nor on nVidia Control Panel.
Device Manager lists the Monitor as a 'Generic Non PnP display', but the Display Adapter lists a GTX 460, which means my GPU is ok. I know this because I can still play Steam games fine without a hitch, only everything looks magnified because of the resolution downscale.
I've TRAWLED the web in search of a solution. One was to clean reinstall GPU drivers. Driver Sweeper- nope. Latest nVidia drivers - NOPE.
Another suggestion was to System restore before the monitor conked out. I remembered the day before I installed some Microsoft Keyboard/Mouse macro software, as well as an update to the Intel Management Interface Engine, both via Windows Update. Inevitably, System Restore didn't solve ANYTHING.
Before you ask, my motherboard doesn't have an IGP, nor an option to enable the GPU in my Intel i3-2100. So no need to delve into the BIOS for that then.
Next, I got out of my way to replace the DVI-I cable with another one, freshly bought from Amazon. Still showing 1024x768.
I was going to update the monitor drivers, but the official Digimate manufacturer's website doesn't even HAVE the drivers for it.
In addition, I've read up on causes of Windows reporting Generic non PnP, and found out that it MAY be a courrupted EDID. Again, I WAS going to reflash the EDID (being aware of the risks), but upon looking at the registry via Phoenix EDID Designer, it came up with the following 3 hardware IDs
ACR refers to a different monitor I used with the PC, NVD presumably refers to the nVidia display drivers, and CVT weirdly lists as some random monitor.
You’d think that DGM would be somewhere in the list. But no, not a single mention of my monitor. So without an EDID to flash with, I am pretty much out of ideas.
So, could anyone suggest some different ideas before I have to break out the tweezers to clip off a couple of pins on the DVI cable, or before I decide maybe it’s better to buy a new monitor?