Black Box ServSwitch manual Your on-screen display is not synchronized

CHAPTER 8: Troubleshooting

Your video is OK in low-resolution mode, but you can’t get into high-resolution mode.

A. If you’re using XGA, you must use coaxial cables (see Section 3.2.3 and Appendix B).

B. Check your video driver or control panel. It might not be set up correctly for your desired resolution.

Your on-screen display is not synchronized.

There might be a sync mismatch between a CPU and the monitor; for example, perhaps the CPU is sending video with composite sync or sync on green and the monitor only accepts horizontal or vertical sync. Change the settings of the CPU or monitor so that the two are compatible. If this is not possible, swap in a different monitor that can handle all of your CPUs’ synchronization types.

The Matrix ServSwitch doesn’t work with your docking station.

The Matrix ServSwitch does not support most docking stations for portable computers.

The Matrix ServSwitch doesn’t work with your dongle-protected software.

The Matrix ServSwitch does not support most dongles (the devices required to be inserted into the keyboard line by some software for copy protection).

The Matrix ServSwitch doesn’t work with your IBM ThinkPad.

The Matrix ServSwitch supports only “stream mode” (continuous) mouse data. It doesn’t support the “prompt mode” (burst-on-request) method for handling mouse data that some older IBM ThinkPad models use, regardless of whether the ThinkPad is connected to the Switch directly or through a docking station (and see the text under “The Matrix ServSwitch doesn’t work with your docking station” above).

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