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On Wed, 21 Jul 1999 14:57:20 +0200 (SAT), Sun wrote:
> Erik Mouw writes:
>  > BTW: The 13W3 connector *is* standard, but the pinout *is not*! Be careful
>  > that you have a VGA --> 13W3 connector for Sun, the ones for NeXT, SGI,
>  > and PowerPC won't work.
> Hmmmm.... Interesting, as I've connected a Sun 21" (Year old model) to 
> an SGI (Indy) via the 13w3 adapter with trouble...
> You mean that I could perhaps have damaged my monitor or the SGI
> Indy??

Very unlikely. I did the same without damaging anything. 

Maybe this helps: Try to find two 13W3 cables, two 13W3 --> 4x BNC
adapters (R, G, B, CSync; came with lots of old Sparc IPCs), and three BNC
adapters with 2x male on each side. Connect the monitor in the following
way (sorry for the long line):

Indy ==> 13W3 cable ==> 13W3-4xBNC ==> 3x 2xBNC male  ==> 4xBNC-13W3 ==> 13W3 cable ==> SUN monitor
13W3                     adapter        connect R,G,B      adapter                       13W3
                                       but *not* CSync

In this way you will only connect R, G, and B. The Indy will detect that
the monitor doesn't use CSync and will it will switch to Sync-on-Green. It
also won't detect the monitor type, so it will switch to 1024x768@70Hz.

Assuming you'r running IRIX 5.x or 6.x, login as root, do "/usr/gfx/setmon
1280x1024_76" to switch to 1280x1024@76Hz (see /usr/gfx/ucode/NG1/vof/ for
other video modes). You will have another resolution, but X won't use it.
Log out, rlogin/telnet to the machine, become root, and do
"/etc/init.d/xdm stop ; /etc/init.d/xdm start" to re-initialize X. I hope
your Sun monitor is autosync... ;-)

This works for me with a standard 19" Iiyama monitor, YMMV of course.


J.A.K. (Erik) Mouw, Information and Communication Theory Group, Department
of Electrical Engineering, Faculty of Information Technology and Systems,
Delft University of Technology, PO BOX 5031,  2600 GA Delft, The Netherlands
Phone: +31-15-2785859  Fax: +31-15-2781843  Email J.A.K.Mouw@its.tudelft.nl
WWW: http://www-ict.its.tudelft.nl/~erik/

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