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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.

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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. –  g00p3k Oct 26 '09 at 21:55
    
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 Oct 27 '09 at 14:40
    
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 Jun 11 '10 at 7:58
    
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. –  Tom Wijsman Nov 6 '10 at 0:00
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6 Answers 6

I'm afraid this is not possible, as far as I'm aware the login GINA screens are only written for a single display source, thus preventing you doing what you are intending to do.
There may be some obscure tool out there to do it but I'm certainally not aware of one and have not come across one in over 6 months of looking, albeit on and off. ( I was trying to do the same on some of our Designers PC's)

on the plus side though there are many open source GINA's out there. perhaps there is one that suits our needs. i was reading an interesting article about them earlier: http://www.windowsitpro.com/article/security/pgina-open-source-gina-replacement.aspx

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+1 for making me aware of pGina, thanks! –  Steffen Opel Feb 17 '11 at 13:11
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I believe you cannot display any logon wallpaper on the secondary (or third, etc.) monitor. The logon screen is only designed to show on the primary.

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Well that blows, it worked so well in Vista... one wonders why they didn't just turn the other monitors off then - but nooo, they decided to display a black background on them. Brilliant! Not ^^ –  Oskar Duveborn Dec 30 '09 at 14:36
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This is truly a limitation of Windows 7, introduced in Vista - it used to work in XP.

Even the DisplayFusion developers say :

The Windows 7 logon screen has no dual-monitor capability whatsoever, so we can't even develop a custom solution for it.

Your only option for screen lock (not logon) is a product such as the Clear lock freeware.

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I just did this today. I downloaded an image meant to span across 2 monitors, i right clicked on it and "Set as desktop background", the image position needed to be Tile, and it worked like a charm. Check THIS out as a reference.

EDIT: You meant logon screen, sorry!

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Yes but it doesn't seem to work for the logon wallpaper (where you enter your username and password at login or when Windows is locked)... it gets squised onto the first/primary monitor and the others turn black. –  Oskar Duveborn Aug 17 '09 at 14:40
    
I think the workaround mentioned in that link is for RC btw because I remember having to do that before for the desktop wallpaper - but it worked right away in RTM ^^ –  Oskar Duveborn Aug 17 '09 at 14:42
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(edit: just saw you mentioned LogonStudio already)

I don't think this is possible...although LogonStudio might work (although I've never been able to get it to work correctly with Win7.

There was mention for a while of including support for multiple monitors but the login GINA screens are only written for a single display source IIRC so it would be difficult to do what you want.

Again, you may look at LogonStudio and perhaps Ultramon.

I know that DisplayFusion allows for different backgrounds and extended taskbar but it won't do what you are asking (I run it on Win7 now).

It may also come down to the video driver software supporting "stretched" monitors (instead of clone or dualview support, something that turns 2 monitors into one big resolution)...but that may look ridiculous if the Login pics are stretched across two different monitors.

Hope that helps a little (perhaps?)...

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Launch logon studio vista (vista version required) in compatibility mode for Server 2003 and it will work on Windows 7 - including the stupid browse button ^^ –  Oskar Duveborn Aug 22 '09 at 10:28
    
Still of course, Windows 7 blatantly refuses to stretch the wallpaper over any secondary monitors - it's weird as Vista did it flawlessly... :/ –  Oskar Duveborn Aug 22 '09 at 10:29
    
Perhaps it should be migrated to superuser... –  Oskar Duveborn Aug 23 '09 at 14:00
    
Even in compatibility mode it (logonstudio) doesn't work for me in 64bit. I still can't come across anything other than a single post saying that WINLOGON was only written with a single primary display as its focus, so it won't show on both monitors just the primary. –  TheCleaner Aug 26 '09 at 14:42
    
Logonstudio Vista version should work fine in x64 Vista, compat mode needs the specific Server 2003 option set for some reason and the only thing that does is enable the browse for image-button. I guess I will have to take a photo of my Vista multi-monitor computers with logon wallpaper across all monitors ^^ –  Oskar Duveborn Sep 19 '09 at 14:35
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As a counterpoint to this question, something you may not have considered, logon screen images are sometimes not such a good idea.

If you ever perform remote support, or your users log in remotely using Remote Desktop Connection (or a similar alternative) then you'll have plenty of time to regret that logon screen image while you wait for it to paint the screen.

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Point taken ^^ Though I don't let the remote desktop client draw background images by policy anyway... at least not when using RDP and ICA - no idea how stuff like VNC handles that but I don't use'em so.. meh ;) –  Oskar Duveborn Oct 13 '09 at 13:29
    
RDP doesn't draw background images unless you explicitly tell it to. –  Django Reinhardt Nov 9 '09 at 17:13
    
VNC can be told to ignore them too. –  ThatGraemeGuy Dec 2 '09 at 20:38
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