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Author Topic: How to force W7 to re-detect my plug & pray monitor  (Read 4020 times)

broadstairs

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How to force W7 to re-detect my plug & pray monitor
« on: June 20, 2017, 08:06:35 AM »

I have my only windows system running 24x7 for the weather station and the monitor is connected via a KVM switch. Normally this works fine when I manually power cycle or re-boot it with the monitor connected. However in a power cut situation with the monitor switched off it simply loads a generic monitor but uses a resolution which is not compatible with the actual monitor when it is powered on. Now I can get round the resolution issue easily but the generic driver does not show the actual resolution I need.

So my question is how can I force a detection of the monitor without having to re-boot. I've tried using device manager but it does not detect it.

Stuart
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broadstairs

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Re: How to force W7 to re-detect my plug & pray monitor
« Reply #2 on: June 20, 2017, 09:15:11 AM »

This any good?
https://superuser.com/questions/544586/windows-7-detect-new-secondary-monitor-without-rebooting

I'll try the graphics adapter trick shown there and see if it works. Certainly the device manager rescan does not find the monitor.

Stuart
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broadstairs

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Re: How to force W7 to re-detect my plug & pray monitor
« Reply #3 on: February 21, 2018, 10:26:30 AM »

Just realised I never updated with my work-around. I have TightVNC installed on the PC and accessing via that from another PC allows me to see the desktop and reset the monitor resolution. I know it's not much good if you don't already have VNC set up but it worked for me.

Stuart
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