Windows 7 moves/resizes windows on monitor power cycle

Anonymous

I have a new W7 ultimate install on a new PC (AOpen DEX4501 w intel GM45 graphics). I have installed the latest Intel graphics drivers 8.15.10.2202, and all relevant windows updates.

It is connected via HDMI to a Grundig Misuro HD TV. My resolution is set to 1600x900, windows recommended resolution is 1920x1080 but this displays badly so I don't use it.

When Windows sleeps, or I turn off (then later on) the monitor, most windows are moved/resized to the upper left with the lower right at 1024x768.

Firefox, Excel(2003),Explorer windows resize/move, Outlook(2003) did not move/resize.

I have a Samurize (Gadget like) display on the right which someimes get relocated to the top left, but not this morning. The windows resize/move also happens when Samurize is not running.

I have found three other entries related to this;

They don't seem to have been resolved for a long time.

This is a Windows monitor power managment issue, can it be fixed please it is very annoying.

I won't be recommending W7 to others with such issues outstanding.

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Anonymous

I have found a work-around.

Using Sysinternals ProcessMonitor I found that Windows was accessing the following Registry path;

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers\Configuration

My system had three entries;

DELF003YY7707BR0MUL_30_07D7_6A^9A3774EB79DEE3E3E38496CC7DF4D936

QHD32000001_31_07D6_D5^63E1ABDD175E7871DCAEB710418A0F75

SIMULATED_8086_2A42_00000000_00020000_1010100^CDE365D1B3F0942F0CF38BFB8E127AB4

Under each is a tree called "00" two of the keys are

PrimSurfSize.cx

PrimSurfSize.cy

Under "00" was another branch also called "00" two of the keys are;

ActiveSize.cx

ActiveSize.cy

The first two of the configs (ie DELF00... & QHD3...) the above keys were 1440x900,

so they were not involved.

The third (SIMULATED...) were set to 1024x768.

I changed these to 1600x900 and the problem was solved.

Further I changed resolution (via control panel) to 1920x1080, the moving/resize issue returned,

but the lower right corner was set to 1600x900, ie the SIMULATED... settings.

So for some reason one of the configs does not get set correctly.

I don't know why there are three configs, I have only ever used one monitor.

Hope this helps someone out there...

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236 additional answers

Anonymous

2015-08-06T12:25:45+00:00
YES!

this resolves my issue with window positioning, with some extra additional work:

setup:

Single Dell 4K monitor connected via displayport DP

NVIDIA GTX 760 connected via DP

Intel i5 4960K, Z97

Windows 8.1

I found a ton of monitor configs in registry (migrated my windows from a laptop install so lots of legacy profiles).

I tried the initial fix of forcing 3840x2160 just on my dell monitor profile within the registry, however that did not work.

My fix:
1. I backed up the entire "configuration" registry keys, and deleted all of the monitor profiles.
2. Turn off monitor and turn back on; a new profile will have been created. turn off and turn on again to make sure the SIMULATED profile is also created.
3. Apply MichaelAtOz's fix with manual input of your desktop resolution (3840 x 2160 for example) and make sure the STRIDE entry is 4x multiple of your horizontal resolution (eg 3840*4 = 15360 STRIDE).
4. make sure the monitor profile and the simulated profile key entries match (my simulated one had different keys for Flag, Hsync, Vsync, and VideoStandard); just copy the values from the proper 00 profile.
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Anonymous

2015-08-03T22:43:19+00:00

Same for me. I do not have the option of a "simulated" screen in my registry on Win10.

Heres how it looks like for me: http://i.gyazo.com/5b273dec9fcbc0460d784a9f9d651c2f.png

I assume that ACR is my Acer screen and SAM is my Samsung TV, the resolutions fit them as well.

Both MS monitors though are on 1024x768, so these might be the simulated ones I think?

I don't know if that might cause heavy issues if I just try and still I don't know what "Stride" means, do I have to change that as well or just the resolution itself?

Best regards
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Anonymous

2015-08-02T23:24:49+00:00

Unfortunately this seems not to work on Windows 10.
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Anonymous

2015-07-23T18:52:16+00:00

Thank you for this helpful information.

For others experiencing this problem, I used this to solve the issue on a Win8.1 machine with an ASUS PB287Q 4K monitor and GTX 970 video card that was having the same issue of windows moving and resizing when the machine went to sleep.
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