image size too large for 10.2 " screen

[TheOldPresbyope]

The manufacturer (OrigenAE) is using a technology developped by a compagny called EETI.
They provide a driver  for different OS:  https://www.eeti.com/drivers_Linux.html

I have installed the 'eGTouch_v2.5.11703.L.ma" linux driver on the very last version of moode (on a USBRidge signature)
The touch screen functionnality is working but is quite slow ...
 
The chapter 8.3 of the programming guide is about setting resolution but it does not modify anything for me.
image size is still too large

The xrandr command result is :'Can't open display'  !!!


The forum does not allow me to attach a pdf file (EETI_eGTouch_Linux_Programming_Guide_v2.5o.pdf)
This file is included into the tar.gz file of the linux driver

I must also say that this problem occurs immediatly during the boot

Sorry, no. The EETI driver is all about the touchscreen as an input device. Nothing to do with it as a display device.

I don''t know what to make of your first post where you said "The screen is connected via a VGA  /HDMI adapter." What is a VGA /HDMI adapter? What is the actual interface to the touchscreen?

It's perhaps uncommon but there are LCD screens out there which lie about their "native" resolution, especially those from anonymous Asian manufacturers which get boxed, labelled, and sold by some other entity. After all, those numbers reported by xrandr and its ilk come from the firmware in the display's HDMI interface---just something some contract programmer inserted into it.

What happens if you boot Raspberry Pi OS itself on your Pi with the touchscreen attached? Do you get the same overlap? I'm thinking you will, but there's always the chance that we'll learn something.

One heat-it-and-beat-it solution is to play with displaying images of differing geometries to figure out what the native screen geometry is and then set that manually in moOdeOS.

Not my cup of tea. More than 20 years ago I spent way too much time in the lab manually configuring Unix workstations for the big displays we invested in. Looked great when I was done but what a waste of my time.

Regards,
Kent