troubleshooting Question

Disable Windows 7 Auto-Resolution with Projectors

Avatar of arthurh88
arthurh88 asked on
ComponentsPeripheralsWindows 7
6 Comments2 Solutions4063 ViewsLast Modified:
As soon as I plug in my digital tv to my laptop via an RGB Cable, windows forces my laptop resolution to change.  Then, any issues on the TV will cause my laptop to flash back and forth between resolutions (as soon as I unplug the monitor, for example, windows changes my resolution again).   I do not want this. How do I tell windows 7 to stop "detecting" whether or not I have a monitor plugged?

I want to manually set my resolutions at all times and have Windows stop auto-changing it for me, no matter what monitor I have plugged in.  Thanks


By the way:  changing this key to 0 does not work-

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\TMM

UseIViewHelper = 0  
(setting this key does nothing at all, my laptop still auto-changes my resolution at will when other monitors are connected/disconnected)

I want to force my laptop into one resolution, and let the external device deal with it.
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