Locking Screen Resolution with KVM

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Locking Screen Resolution with KVM

I have a MacBook Pro 15" running 10.4.8. I have a Iogear DVI KVM attached to the DVI port. The monitor attached to the KVM is a Gateway FPD2485W 24" LCD with optimal resolution of 1920x1200. The Mac performs wonderfully at this resolution.

The problem I have is that when I switch away from the Mac with the KVM for more than a moment and then switch back, the Mac reverts to 1024x768 with a "KVM Monitor" profile in the Display Prefs. If I press "Detect Displays" after switching back, it once again properly recognizes my Gateway and then switches to the correct 1920x1200 resolution.

Is there any fix for this? Is there any way to "lock" the DVI port resolution somehow, or maybe to modify the "KVM Monitor" profile so it allows 1920x1200 resolution as well? Any other options to fix this? It is annoying to have to have the Mac detect the monitor and maximize my windows every time I switch back to it.

Any help is appreciated!
T.

MacBook Pro 15", Mac OS X (10.4.8), IOGear KVM

Posted on Mar 6, 2007 10:34 PM

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Answer 1

Mar 31, 2007 4:51 PM in response to teknishn

I'm sorry, I've been investigating this as well. I use an ioGear KVM with VGA, the one that's shaped like the Mac mini I use it with. It has gotten worse. I find that I simply have to turn off sleep altogether, or else I find I'm switching to a blank screen on the mini. Sometimes I solved the problem by touching the sleep button and then waking it up. It seems to be in a forgetful coma.

Other irritations: if I'm away from the mini for a while, when I go back, there is the Bluetooth "wizard," looking for the USB keyboard and mouse. When I'm running Windows in Parallels, the problem is worse, freezing up Windows.

By turning off sleep, I've ameliorated the problem greatly. But I still will return to, in my case, not a 1280x1024 screen, but 640 x 480. Then it blacks out, and when it returns with my default setting, windows are only half as high: the desktop may be 1280x1024, but Safari looks like 1280x512. Grr.

PowerMac G5 Dual 2.0 Mac OS X (10.4)

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