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Help Interpreting Windows Registry - Graphics Drivers


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#1 rushbikes

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Posted 03 October 2016 - 09:09 PM

OS: Win10

Graphics: Intel HD Graphics 4600

Monitor: Dell P2715Q (connected DisplayPort to mDP)

 

Every time my monitor sleeps and subsequently wakes up, all windows are resized (smaller) and moved to the top left corner of my monitor. Seems to be a common problem voice across the internet with most solutions pointing to editing the Registry. For example...

___________________________

 

In this register tree:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers\Configuration\

there is at least an entry per monitor; I had a DELxxxxxxxxxx and an ACRxxxxxxxxxx one, and under the 00 node, there are two parameters to check out there:
PrimSurfSize.cxPrimSurfSize.cy and Stride.

These should match your current monitor.

A little below you should see these entries:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers\Configuration\SIMULATED_xxxxxxxx

inside, you will also find under the 00 node, and those parameters pointing to the old sizes. Use the values from above, and also change under the remaining 00 node the ActiveSize.cx &ActiveSize.cy entries to match. Log off or restart and voila!

 

Source: http://rcaloca.blogspot.com/2014/12/windows-changing-size-position-after.html

___________________________

 

But here's my problem...I've only ever had one monitor (the Dell P2715Q) yet my Registry shows 12 entries:

 

DEL40BDV7WP956B736L_18_07DF_D4^3E1BBFAD2D2BBBE8EB5038006175E214

DEL40BDV7WP956B736L_18_07DF_D4+SIMULATED_8086_0412_00000000_00020000_10101^5B695E95157B3E316D788E0132977D1B

DEL40BDV7WP956B736L_18_07DF_D4+SIMULATED_8086_0412_00000000_00020000_1010100^C96209F0BD71F374E60367A00065A913

MSBDD_LGD02D80_00_07DA_84_8086_0126_00000000_00020000_0^C9257F7727FF42D1856F4CC7AD14E249

MSBDD_NOEDID_8086_0412_00000000_00020000_0^B878EC6511B7FF6F798A951FDBC58C6E

MSH062E0_00_07DB_C6^182FDC0875F0A76803E4A9848A8C1EA7

MSNILDEL40BDV7WP956B736L_18_07DF_D4_1414_008D_FFFFFFFF_FFFFFFFF_0^5EE5FF374E23BFC5B626E1C7ECEDA6BF

MSNILNOEDID_1414_008D_FFFFFFFF_FFFFFFFF_0^030B4FCE00727AC1593E5B6FD18648D6

NOEDID_8086_0412_00000000_00020000_1010100^E68BD8849E45F4596BC57FB33F16C596

SIMULATED_8086_0412_00000000_00020000_10101^7C3565F513628868817E7771EE340E58

SIMULATED_8086_0412_00000000_00020000_1010100^9DC0F72234047B2D0046209C40C68EB2

SIMULATED_8086_0412_00000000_00020000_30E03^F934C7E92A21D6DD00CCE41AA27AFF48

 

How do I know which of these to edit? Fair to assume some of these registries are inactive?



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#2 rushbikes

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Posted 03 October 2016 - 09:46 PM

I should clarify, it's when Windows puts the monitor to sleep I believe rather than a monitor setting. If I turn the monitor off and back on, there's no issue with the windows rescaling/moving.


Edited by rushbikes, 03 October 2016 - 10:06 PM.





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