Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

How can the DPI setting be changed for the Logon Screen in Windows 8.1?

Microsoft has added per-user DPI settings. But this means that there is no adjustable DPI setting for the Lock/Logon screen.

You can change the DPI setting to be the same across all displays and this does affect the icons and font on the lock/logon screen. However, it does not affect any app/program that can run on the lock/logon screen.

I use a 44" flat screen TV for my monitor on my desktop. Big enough for me to sit in my recliner and use my computer. I use the on-screen keyboard most of the time. (I don't want to keep a keyboard next to me.)

The problem is that with the new DPI setup the on-screen keyboard takes up nearly half the screen, which is too big.

I tried looking through the registry to see if I could find a setting for it. In the key HKEY_USERS\.DEFAULT\Control Panel\Desktop there is a string value named LogicalDPIOverride with a value of -1. I have a feeling this is where I can fix the issue. I tried changing the value to 0 and to 1 with no change in the result. Instead I noticed that after logging out and back in the -1 value was back in the registry.

How can I change this default DPI? Can I use the LogPixels string that worked for DPI in Windows 7?

Here are two Screen shots, one of the Lock Screen and one of the Logon Screen:

lock screen screenshot

logon screen screenshot

share|improve this question
The on screen keyboard is exactly the same size in both of these screenshots. So there's no problem demonstrated here! – Michael Hampton Nov 4 '13 at 23:58
I guess the keyboard should be smaller? It takes up half the screen and it should be a different size. – Kevin Panko Nov 4 '13 at 23:59
The screens are to show you the auto scaling when I'm logging in. I was hoping to find a way to turn off auto scaling for the logon desktop. It isn't affected by the settings from accounts. The new per-user settings Microsoft has implemented make it so no account can change logon. – jmc302005 Nov 5 '13 at 0:33
Also it says right in my question it is too big. – jmc302005 Nov 5 '13 at 0:34

In order for LogicalDPIOverride to work you need to set value larger than 1.

For example on Macs with retina screen you'd need to set it to 2 - which will result in 200% UI scaling.

share|improve this answer

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .