Monitor displays Cable disconnected


 
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Operating Systems Solaris Monitor displays Cable disconnected
# 1  
Old 02-18-2006
Monitor displays Cable disconnected

Hi all
This is my first post in this forums. I hope some one can help me with this

my Sun Ultra 60 worked fine couple of months back when i used a dell (1280x1024). i move to a MN last month n bought a new sony monitor with (1280x1024) but when i connect it to the box it monitor displays "cable disconnected".

thanks
venu
# 2  
Old 02-23-2006
From Sunsolve:
Quote:
Sun's Sbus framebuffers are able to detect what frequencies and
resolutions the monitor is able to run at. This is done through
the use of several pins on the card connector.

The most likely reason why a non-Sun monitor is not working
with one of our framebuffers is because the monitor is not
correctly reporting the resolutions it can handle, so the
framebuffer is using a default scan rate/resolution which
the monitor cannot handle.



Resolution: Top

A video cable needs to be fashioned up to report the resolution(s)
the monitor supports. The SRDB article entitled "Sun Class B Monitor
Connector (13W3) Pinout information" will be of some use here.

The pinout specifies that pins 3, 4, 8 & 9 return the information
about the resolutions the monitor supports. The pins need to be
connected following the guidelines in the table below.

As an example, to tell the framebuffer that the monitor supports
a resolution of 1280x1024 at 76 Hertz, pins 3 & 9 should be
connected to pin 4, and pin 8 should be left unconnected.


Sense Pin (Resolution) Allocation

Code Scan Rate Pin 3 Pin 8 Pin 9
Sense 2 Sense 1 Sense 0
-------------------------------------------------------------------
7 No Monitor N/C N/C N/C

6 1152x900 76Hz N/C N/C Sreturn

5 Reserved N/C Sreturn N/C

4 1152x900 76Hz N/C Sreturn Sreturn

3 1152x900 66Hz Sreturn N/C N/C

2 1280x1024 76Hz Sreturn N/C Sreturn

1 1600x1280 76Hz Sreturn Sreturn N/C

0 Reserved Sreturn Sreturn Sreturn
-------------------------------------------------------------------
Sreturn = Logic ground, Pin 4
N/C = Not Connected

Also take a look at this thread which may be helpful (if you get a dumb terminal, you might be able to change to whatever your monitor is trying to use)

Last edited by RTM; 02-23-2006 at 03:19 PM..
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