I have an old Dell Vostro 1700 running Debian Trixie. It has an NVidia G86M (GeForce 8400M) graphics chip. I installed the NVidia 340 driver (which is difficult to find).
I attached a HP 14" monitor to the VGA socket. When I booted, it came up with side-by-side displays. I could move windows from one to the other. When I closed the cover and re-opened it, instead of waking up, it re- started X, but this time with displays mirrored. I ran nvidia-settings to move the HP monitor. It complained about not being able to set a mode. I've tried many times since without success. I tried running the KDE Display Settings, but that put it into a restart-X loop. Any ideas? Van Snyder
