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

2015-11-18T19:22:25+00:00

I could be wrong, but the common theme seems to be Display Port connections.

Although my Thinkpad T440s has a DP, I experience this issue with the laptop's own monitor, not with an external one.

BUT after the latest Windows 10 major update (1511) I am no longer experiencing this issue. Did they fix it? Is this a coincidence? Will it happen again tomorrow? I don't know, but I will keep this post updated.
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Anonymous

2015-11-18T17:45:04+00:00

I use an LG 31MU97 4k monitor with an NVidia GTX 970 card. In the end, the only thing that I could get to work for me was the two cable setup I mentioned earlier. This will not necessarily work for everyone, but it has worked for me for a couple of months now.

Interestingly, this problem has been reported on Mac OS (http://forums.macrumors.com/threads/nmp-windows-resize-after-waking-from-sleep.1757688/), so it is not limited to Microsoft Windows. It has been reported on multiple kinds of monitors, different video cards, and various versions of Windows. I could be wrong, but the common theme seems to be Display Port connections.
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Anonymous

2015-11-18T07:43:05+00:00

Similar setup as you. I have the Dell P2415Q and NVIDIA GTX 970.
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Anonymous

2015-11-18T02:29:16+00:00

I doub't its a Dell problem. Lots of people have the issue and the list of monitors mentioned is quite varied. I'm running Acer 4k monitors and I've had the problem from the day I set them up. The suggestions I've seen so far involve upgrading drivers (I'm using an nVidia card), the registry settings, re-install Windows, adjust display adapter settings etc.

In my case, the registry settings came closest to fixing it but after a while the windows start doing their thing again and position themselves all over the place after my PC wakes up. I haven't been able to get the registry hack to permanently fix the issue. Gets worse if you have mutliple monitors on 2k+ resolutions because you have to re-apply the settings for each monitor's registry entries.

I still don't know how this hasn't even been acknowledged as an issue.

Edit:

Just wanted to add, the guy who figured out the registry settings fix deserves some serious credit for finding out what settings are actually being used. In my case I tried to do the same thing - use SysInternals Process Monitor to figure out what settings are being used and what the values are (see screenshot below). This helped me eliminate some of the guesswork I had to do because I'm running 3 monitors. But as mentioned, my settings seem to change every now and then and I end up having to update them again which is super annoying.
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