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Windows 7: Wrong screen resolution on startup

23 Apr 2016   #1

Windows 7 Home Premium 32-bit
Wrong screen resolution on startup

I have my Windows 7 computer hooked up to my monitor (and mouse, keyboard, and speakers) through a KVM switch (I wonder if this is the root of the problem). When I boot up, I'd say about 10-25% of the time the screen resolution is wrong.

If I right click on the desktop and then click on Screen resolution, the window that pops up should say:

Display: S200HQL
Resolution: 1600 x 900

But when the resolution is wrong it says:

Display: (Default Monitor) on
Resolution: 800 x 600

Rebooting has always (so far) corrected the problem. Is there a way to permanently fix this? And do you think my suspicion that this is being caused because of going through a KVM switch is right? (This problem also occurred once after the computer feel asleep.)

My System SpecsSystem Spec
24 Apr 2016   #2
Mellon Head

Win 7 Pro x64/Win 10 Pro x64 dual boot

The problem is that your monitor is not being detected all the time at start up. It's most likely due to the KVM. Have you tried using the system without the KVM for a while and seeing if it has the problem over a number of boots? It may just be that your KVM is switching to the other computer while you're booting. I have a KVM at work that is notorious for that. Or the KVM might be faulty.
My System SpecsSystem Spec
24 Apr 2016   #3

Windows 7 Home Premium 32-bit

I don't think the KVM is faulty. When I boot this computer up, the first thing I do is push the "Computer 2" button on the KVM. The light has never switched back to Computer 1 while the computer was booting up. (Nor are there any problems when both computers are up and running.)

I was hoping there was a setting, or something I can do or change that would help the problem. But if not, the problem is bearable, even if a bit annoying.
My System SpecsSystem Spec

24 Apr 2016   #4

Windows 7 pro 64-bit sp 1

It's not that it is faulty but devices aren't portrayed correctly through KVMs. For me devices have only shown up as generic objects by the computer. You have to realize that you aren't connecting a monitor to the computer but the switch. Perhaps they don't have the capability to correctly transmit that information.
My System SpecsSystem Spec
25 Apr 2016   #5

Windows 7 Home Premium bit

I run multiple comps through kvm to one monitor via vga (to a 4-3 monitor, 21" Eizo). individual comps to diff monitors hdmi or dvi. the vga conn ties them all together, use with 16-9 monitor(s). One comp -> hdmi, one dvi, = 4 comps, 2 monitors.
(Even have a two port kvm plugged into the four port kvm, = five comps, one of 'em only on vga, this one I'm using now) (I greatly prefer the 21" [4-3] monitor for web surfing)

Only problem I have ever had was when I tried using a kvm with usb conns for k & m. Never a problem with ps-2 plugs.

My System SpecsSystem Spec

 Wrong screen resolution on startup

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