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Hi

 

I have a laptop : the ZD8000 with radeon x600 and a 17" 1440x900 LCD panel

 

Installed 10.4.8

 

I have a situation with the external display

 

The 1440x900 is working on the internal ; but the external display (also 1440x900 LCD 20" on my desk) reports a 1152x864 input signal . The actual image appears to be the correct 1440x900 but is overshoots (parts of the image are outside the monitor's edges)

 

Is there a way to get the correct external panel output ? I think it somehow misreads the DDC info the monitor sends to the PC , or the PC which sends wrong DDC info to the external screen .

 

 

I don't want dual screen or expanded screen or whatever it is called . Just the same image as the internal screen has

 

 

Does anyone know how I can tell the monitor on the external port that my signal is 1440x900 ?

 

EDIT: I used a breakoutbox to disable all DDC communication between monitor and PC . Still the same . The width of the image appears to be within boundaries ; the heigt is not . I suspect a wrong frequency ... not much ... 59 Hz instead of 60 or so

Edited by Paradroid2
  • 4 weeks later...
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