Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Primary display cut off after KVM returns

14 Oct 2010   #1

Windows 7 x64
Primary display cut off after KVM returns

Since yesterday's Windows 7 patch, my primary display (left-side, on DVI, not connected to my single-VGA-monitor type KVM) loses signal from my Nvidia GT 240 when I switch my KVM's focus back to my Win7 system, and my second display (right-side, on VGA, connected to my KVM) becomes the only display (with Start button and all) as if I had disabled my left-side display. When the KVM is switched to another sytem, my left monitor gives me access to the primary Win7 display via a second mouse and keyboard and this still works fine - until I switch back to Win7. When I enter the Screen Resolution tool and click the Detect button, my dual-view configuration is instantly restored.

This problem did not occur before the latest patch install, which required a shutdown. Is this a known problem? Is there any way to prevent my primary monitor from being cut off when returning the KVM focus to my Win7 system?

My System SpecsSystem Spec
16 Oct 2010   #2

Windows 7 x64

I moved this thread to the Windows Update and Activation topics:
After update, primary display cuts off after KVM return
My System SpecsSystem Spec

 Primary display cut off after KVM returns

Thread Tools

Similar help and support threads
Thread Forum
Primary display corrupts when watching YouTube videos.
I originally posted this elsewhere but have yet to receive a reply, so I'm going to do a direct copy/paste, hence there being another post compressed into this one at the bottom. --- I'm not sure whether this is down to a driver update, a Windows update or something else. It's been happening...
Graphic Cards
Desktop picture resolution differs from primary display
Hi, I am fairly new to windows 7. I have it installed on a laptop with a screen resolution of 1440x900 with a Nvidia GeForce 9400M. My second display is a Samsung Syncmaster with a resolution of 1680x1050. Everything is working okay but the standard Windows 7 wall paper seems to be displaying...
Graphic Cards
How can i set my NVIDIA GT 525M as primary display
Hi all, i have Dell inspiron n5110. My drivers : When i click Screen resolution : and it's using the integrated Intel instead of the Geforce 525M :
Graphic Cards
After update, primary display cuts off after KVM return
This problem seems to be a stumper - 4 days and no replies. Does anyone know if this is more likely an Nvidia issue? --------------------------- Since the 10/13 Windows 7 patch, my primary display (left-side, on DVI, not connected to my single-VGA-monitor type KVM) loses signal from my Nvidia GT...
Windows Updates & Activation
Primary display moves
Gigabyte GA-P35-DS3L, E2180 CPU, EVGA 7600GT graphics, Windows 7 Professional, Samsung 22" LCD connected via DVI, Dynex 46" TV connected via HDMI If the TV is on and I boot the PC, all is well. If the TV is off, and I boot the PC, then turn the TV on, the TV becomes my only display. I have to...
Graphic Cards
Not dectecting LG r590 notebook 3D 120hz primary display
I have a LG R590 laptop the i5 with 4 gb ram 500gb hdd and the Nvidia GT 335M screen card. I bought the laptop for gaming and loaded win 7 ultimate 64, Now i can not ajust my screen brightness and windows only picks up a generic pnp 60hz display. Pease help me to get windows to dectect my 120hz...

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 08:59.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App