How to fix a Samsung SyncMaster 400MX-3 Monitor when the display does not appear on the system information chart?
- AAmy GonzalezAug 11, 2025
If the display you want to control isn't showing up on the system information chart for your Samsung Monitor, here are a few things to check: * First, ensure the RS232C cable is properly connected to the correct serial port. * Second, make sure no other display is connected with a duplicate ID, as this can cause data collision and prevent the display from being shown. * Finally, verify that the display ID is within the range of 0 to 99. If needed, change the ID using the Display menu.