thanks for your estimation and the link. Indeed, there are some interesting issues (e.g. disabling touchscreen). But in our case the resolution does not stay at 1280x1024, it changes to 800x600! The graphics card does not seem to understand, that our monitor does not support 800x600. It would be a big step for me to have black borders around the 800x600.
1.) So, this graphic-card does support hardware upscaling?
2.) Can you tell me something about how the driver decides exactly, what options are there in that scaling-combo-box in the driver's GUI?
3.) What registry entries influence the scaling decisions?
Please leave this thread open, til I checked touch-screen settings and ensure that this is really the same problem. A solution is very important for us.
Our controllers support different options of scaling but do not support upscaling. These options will appear on the Graphics Control Panel depending on the resolution set. See image below.
About the Registry Entries I regret to say we do not handle information about this because playing with the registry keys may cause problems on the computer but perhaps any other user can provide information as per their own experiences.