The screen goes out of sync, how can I fix this?

when I start the server, the screen goes out of sync, how can I fix this?. The server has no video card.

What do you mean by 'out of sync'?
Try running the 'kickstart' using Send UNIX Command or while logged in to that server (ssh etc):
sudo /System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/Resources/k ickstart -restart -agent -menu -console
You might also want to trash /Library/Preferences/com.apple.windowserver.plist from the server..

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