My VDU setup is as follows:
I have a Windows 7 machine with three physical VDUs and 2 logical ones. My machine only supports 2 screens, so we have put in a Displayport splitter. Now my pc thinks it has one 1920x1080 and one 3840x1080 screen even though I in fact have three 1920x1080 VDUs. This works just fine when I am logged in, but not so well when I am at the login screen (see attached picture).
I have made a background picture that is 3840x1080 and this seem to work fine when the 3840 is set as the main screen, but I would rather have the 1920-screen as main screen. That also works fine when I'm logged in with the exception of the background. Then the background on the 3840-screen looks like the supplied login screen sample. That is strange really.
So to recap, When the 1920-screen is main screen it looks weird both when I am logged in and when I am at the login screen. When I set the 3840-screen as main screen it looks fine when I am logged in, but the login-screen looks a bit weird. Also, since the middle of the 3840 screen comes just where the two physical monitors meet, error messages, warnings and pop-up windows show just there and divided in two.
So my question is this: Is there some way I can get a 3040x1080 login screen background and have the 1920-screen as main screen (with the Windows bar and menu button etc)? The file that I use as login screen background now is actually 3080x1080, but WIn7 doesn't seem to take notice and compresses it. I have made a background3840x1080.jpg file and put in the c:\windows\system32\oobe\i
ctory, but that didn't do anything.