Hello, I'm just trying to get it to run om my GPD Win 2. I've tried using dgvoodoo2 without success. Anyone have any advice or tips? I've gotten everything else I want running. I just want this last thing. Thanks in advance.

You've tried running windowed and resolution switches? When you say 1/3 of the screen is missing, do you mean a portion is offscreen? Or that the full screen isn't utilized? Or that a portion of the interface doesn't render (black rectangle blocking part of the view)?

Sorry, forgot to upload the screenshot. 1/3 of the screen is black. it displays fine in windowed. It's just a problem in fullscreen.

Maybe use windowed and make the window fullscreen - not the perfect solution, I know, but good enough?

I have quite similar issue (on first GPD Win, but it's the problem with plenty of games on GPD devices).

I'm personally using dxwnd, to "force" screen resolution 640x480 on full screen (mostly because I can launch the game in higher resolution, but then objects are so small that playing is a bit uncomfortable for me).

Other option is dgvoodoo. But if I remember correctly, it will launch the game in native resolution for GPD Win.

Here you can download dxwnd:
https://sourceforge.net/projects/dxwnd/

And here dgvoodoo:
http://dege.freeweb.hu/

One important thing - if you'll decide for dxwnd, remember to launch it in admin mode (easiest way is to go to properties of shortcut and tick launching in admin mode).

I also have such problem with many GOG games on GPD Win. Where is the problem? Same games on my DELL notebook with Intel graphic do not have such problem!! so maybe some driver or what??

Sadly, the problem is caused by "native" screen resolution of GPD Win. In theory the default screen res. is 1280x720 (which by itself can cause troubles for games requiring such screen resolutions as 1024x768). However, by some reason "native" screen ratio for GPD Win is not "landscape", but "portrait", so in effect for most full-screen software GPD Win is working rather in resolution 720x1280, which causes the fact that screen is "cutted".

I didn't found reasons of why producer decided for such weird step (as well as more technical details about this issue), but the point is that all full-screen games with limited screen resolution capabilities can have those issues. It's much easier to deal with DOS games, since it's usually enough to change graphic mode from overlay to Direct3D or OpenGL (works for me in most cases). Windows games are more difficult to deal with, for them usually good solution are mentioned dgvoodoo and dxwnd. And sometimes some graphic-modifications allowing to launch game in any resolution (but it's not available for all games).

I have game Unreal GOLD running on GPD win2 and does sadly me it has half-black problem can't find windows resolution option support for OpenGL?

Are you able to run the program windowed?

I've heard that it is possible to solve these types of issues. Something to do with tricking the machine into thinking there are multiple monitors. I have an RCA windows tablet that I've been trying to figure out the same issue. I might be mistaken, but I think it has to do with the fact that the portrait orientation is usually set as the default for tablets and therefore it generates the resolution in portrait first and then flips it into the landscape orientation (which explains why the chunk of the screen would be missing).

I'll post the solution here if/when I figure it out.