Re: [Regression] Wrong resolution on external monitor from >185.19
I'm afraid your bug report is missing the verbose mode validation log that I requested. Please make sure you started X with the command "startx -- -logverbose 6" or enabled the "ModeDebug" option before generating the bug report.
However, there is one clue in your bug report file: the driver first started with the mode "nvidia-auto-select" mode, and then later switched to the metamode "DFP-0:1280x800+0+0,DFP-2:1920x1080+1280+0". Did you do that intentionally? If not, it's possible that your desktop environment is changing the screen resolution after you log in. This is typically a problem with GNOME desktops.