Comment 20 for bug 82312

Thanks for the update flabdablet... until I read your comment, it didn't occur to me that my post wasn't really that informative.. I guess I was just focusing on getting people back up and running.

First of all, as far as I know, there is absolutely no reason to run the legacy drivers, so please don't... glad it worked for Michael Asher, but the 440-go isn't on the legacy list, so that might be a bad idea overall.

The issue here is obviously very simple: we're defaulting to the wrong display, which is why the DFP is actually turned off, not just blank or corrupt (like when encountering other problems nvidia binary driver setup on a Latitude C840 / Inspiron 8200)

Option "UseDisplayDevice" "DFP"
conveniently tells x.org what display to use, which is why the display works on your 8200, not to mention why the display works on my C840.

just to be clear since i'm sure a decent few people will be skimming through here: please do not just download other people's xorg.conf file (like flabdablet's or my own) and replace yours with them. it's pretty much a bad idea to just go copying entire xorg.conf files from other people, as they covers quite a few settings. (such as the resolution, my xorg.conf is for a 1400x1050px screen, flabdablet's is for a 1600x1200px screen.. and both our notebooks were available with either screen.) It's a much better idea to read the xorg.conf file and compare the options in appropriate sections with the options in your own xorg.conf file.

To clarify on the instructions I posted above, the commands are intended to
A. reset xorg.conf to a defaults file,
B. have nvidia set it's defaults,
C. splice in the UseDisplayDevice option.

hopefully that clears up a little bit about where the problem lies and what my instructions do, for those who may be a little shaky on either...