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In 2000/XP/Vista it was easy to set a wallpaper for the logon screen, either manually through tools like Logonstudio or simple registry changes by hand on prepared installation images or through custom group policies.
In Windows 7 all this works as usual, but the secondary (or any additional) monitor is just black. The mouse pointer is visible on it but no matter what settings I can't get the logon wallpaper to tile (or stretch or fill or whatever) over onto it.
This makes it hard to OEM/company brand the installation for multi-monitor users. More annoying is the fact that it looks officially supported to brand the logon wallpaper in Windows 7 - as it's made extremely easy... apart from this little catch. XP and Vista has no problem tiling or stretching the logon wallpaper over multiple monitors.
Here in 2014, this situation still exists in Windows 8(.1). :) – Ƭᴇcʜιᴇ007 – 2014-11-20T14:03:20.223
For branding purposes you might want to consider a screensaver solution, I don't think there is any easy way to get the wallpaper to tile. – Tamara Wijsman – 2010-11-06T00:00:59.640
I have triple, and only shows 2 on bootup, with one with the logon window. I think that's normal due to the graphics card settings not loading till logon right? Correct me if I'm wrong on that. – SheldonH – 2009-10-26T21:55:12.097
Well I get the same problem if I log on and then just lock the computer - after logging in and everything initializing fine. – Oskar Duveborn – 2009-10-27T14:40:59.650
I wonder if the Win7 logon/lock screen simply isn't using the graphics driver for security reasons (secure screen)? It could make sense though it's very graphic in nature and renders nicely at high resolutions which seems a bit weird if that were the case (and the fact that it worked in Vista which seems to have the same secure screen otherwise) – Oskar Duveborn – 2010-06-11T07:58:42.877