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Bootvid.dll BSOD when switching KVM-2 computers-multiple builds
I have 2 computers which I control with a KVM. One computer has Windows 8.1, the other is currently on build 10166 but have tried last 3 builds and problem exists on all and series of events exactly the same no matter the build. Problem did not exist on earlier builds of Windows 10 as I have been testing Windows 10 since last fall..
System #1 Dell Precision T1500-Intel I5-quad core-8 gb ram- Geforce 210 graphics- dual boot Windows 8.1 & Windows 7.
System #2 HP Quad Core AMD-8gb ram-Geforce 8400 GS graphics Windows 10 build 10166 (upgraded from Windows 7)
Iogear 2 port KVM with audio
The first time I switched between the 2 computers Win10 blue screened indicating problems with bootvid.dll, pshed.dll, and atmfd.dll (Adobe Type Manager). . I ran SFC which found and fixed atmfd.dll and atmlib.dll. Now, when I switch the kvm I blue screen with errors left only in bootvid.dll and pshed.dll. This will happen every time I switch KVM. I have no problems with the Windows 8.1/7 computer.
Here's what I've tried:
Downloaded and installed latest video card drivers from Nvidia
Ran second SFC no errors.
Ran Memtest-no errors.
Ran chkdsk-no errors.
I have gone so far as to do a fresh install of Windows 7 on System #2 and then upgraded to build 10166 again but problem persists.
I have tried a second KVM switch.
Moved my husband's computer into my office and upgraded his Windows 7 to Windows 10. He has same video card, dual core Intel cpu 4 gb ram. Get exactly same error on his computer.
I have no problem switching Windows 8.1 or Windows 7 with either kvm switch, only Windows 10.
The only thing I haven't yet done is a fresh install of Windows 10.
I've spent at least 40 hours trying different builds and reinstalling from backup and am at my wits end. I can't understand why this did not occur in earlier builds. I can't figure out if it is a problem with the native vga driver in Windows 10 or with the Nvidia driver. Each of the video cards use the same 341.44 driver. It's going to be a bad deal if the Windows 10 RTM will not work with a kvm switch. Any of you guys have any ideas. I've exhausted all of mine.
Last edited by lgentry; 12 Jul 2015 at 13:58.