Windows 7 moves/resizes windows on monitor power cycle

Anonymous
2010-10-08T22:13:48+00:00

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.

Windows for home | Previous Windows versions | Devices and drivers

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Anonymous
2010-10-09T02:55:58+00:00

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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  1. Anonymous
    2015-12-31T19:55:51+00:00

    I use 2560x1440 monitor.  When I install windows 10, I encountered this problem and was able to fix by editing registry entries posted by MichaelAtOz.  However, after November update the problem come back and I could not fix the problem by editing registry again.  Then, I found out that Windows turn on scaling from 100% to 150% briefly when the monitor is detected by using chrome remote desktop and watch what happen during monitor power cycle.  I was able to fix this by changing the following setting

    Control Panel > Display > set a custom scaling level > set to 100%

    That was all I need to do to fix the second time.  It is different problem with the same symptoms.

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  2. Anonymous
    2016-01-11T23:32:58+00:00

    Noting that this fix still works under Windows 10 however I only needed to touch the entries:

    PrimSurfSize.cx

    PrimSurfSize.cy

    In my scenario we have two Dell 4k monitors, each connected to it's own ASUS NVidia GTX970 who are connected via SLI so that we can drive each monitor at 60hz.

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  3. Anonymous
    2016-01-12T20:05:15+00:00

    I have found a workaround that works for me (probably not perfect for everyone)

    If I change the Sleep Button Action (in Advanced Power Settings -> Power buttons and lid) to hibernate instead of sleep the  windows are restored correctly after it wakes. (Or hibernate some other way if you like!)

    I hope this helps some people

    All the best,

    Ash

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  4. Anonymous
    2016-01-13T22:27:05+00:00

    I use 2560x1440 monitor.  When I install windows 10, I encountered this problem and was able to fix by editing registry entries posted by MichaelAtOz.  However, after November update the problem come back and I could not fix the problem by editing registry again.  Then, I found out that Windows turn on scaling from 100% to 150% briefly when the monitor is detected by using chrome remote desktop and watch what happen during monitor power cycle.  I was able to fix this by changing the following setting

    Control Panel > Display > set a custom scaling level > set to 100%

    That was all I need to do to fix the second time.  It is different problem with the same symptoms.

    This worked for me nicely. To everyone who has this problem i'd recommend doing this and in addition to fixing your registry.

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