I wanted to report back and say thank you for providing the INF file.
Thanks to your help, I finally managed to get the Cedarview graphics (Atom N2600/N2800 series) working properly under Windows XP.
Here is what happened and what solved the issues:
Removed the previous Intel driver completely
Switched the system to VGA
Logged in locally (not via RDP)
Ran the IEGD installer (it froze, but the driver files were already deployed)
Forced a reboot
After reboot, the driver initialized correctly and Full HD output became available
Disabled the “Default Monitor” entry to fix the unwanted dual‑monitor state
Now the system runs at 1920×1080 without problems.
HDMI still shows the BIOS screen but goes black when Windows loads, which seems to be a known limitation of Cedarview + IEGD, but VGA works perfectly for my use case.
Your INF file was the key to getting this working.
Thank you again for taking the time to share it.
If you need any details about the steps I followed, I’d be happy to provide them.