29 Aug
2007
29 Aug
'07
4:06 a.m.
I have the following: SPARCstation 2 with GX card (1M mappable, rev 7),
SGI GDM-20E21 monitor (Trinitron, OEM from Sony) and 13w3 cable. Obviously
they don't work together - the pinouts are said to be slightly different
in SGI and Sun. Now, is there any easy way - cut some wires, connect
the others - to make this work?
--
If you cut off my head, what would I say? Me and my head, or me and my body?
29 Aug
29 Aug
8:15 a.m.
On Wed, 29 Aug 2007 13:06:22 +0200
Edward Tomasz Napierala <trasz at FreeBSD.org> wrote:
I have the following: SPARCstation 2 with GX card (1M
mappable, rev
7), SGI GDM-20E21 monitor (Trinitron, OEM from Sony) and 13w3 cable.
Obviously they don't work together - the pinouts are said to be
slightly different in SGI and Sun. Now, is there any easy way - cut
some wires, connect the others - to make this work?
Connect the C-Sync signal from
the Sun via an 330 Ohm resistor to the
green signal. This will generate Sync-On-Green. If you are familar with
a soldering iron you can solder the resistor on the bottom side of the
GX PCB directely at the connector. Maybe you have to break the 10 extra
pins in the 13W3 cabe, because the SGI monitor may ground the pin that
caries the C-Sync signal. The pinout for the coaxial RGB-Pins is the
same on Sun, SGI und IBM.
--
tsch??,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/
3:05 p.m.
On 29/08/2007 16:15, Jochen Kunz wrote:
On Wed, 29 Aug 2007 13:06:22 +0200
Edward Tomasz Napierala <trasz at FreeBSD.org> wrote:
> I have the following: SPARCstation 2 with GX card (1M mappable, rev
> 7), SGI GDM-20E21 monitor (Trinitron, OEM from Sony) and 13w3 cable.
> Obviously they don't work together - the pinouts are said to be
> slightly different in SGI and Sun. Now, is there any easy way - cut
> some wires, connect the others - to make this work?
Connect the C-Sync signal from the Sun via an 330 Ohm
resistor to the
green signal. This will generate Sync-On-Green. If you are familar with
a soldering iron you can solder the resistor on the bottom side of the
GX PCB directely at the connector. Maybe you have to break the 10 extra
pins in the 13W3 cabe, because the SGI monitor may ground the pin that
caries the C-Sync signal. The pinout for the coaxial RGB-Pins is the
same on Sun, SGI und IBM.
And for HP.
For reference, here are the Sun and SGI 13W3 pinouts:
13W3-SGI
================
pin A1 - Red/R-Gnd
pin A2 - Green/G-Gnd
pin A3 - Blue/B-Gnd
pin 1 - monitor type 3
pin 2 - monitor type 0
pin 3 - Composite Sync
pin 4 - H Drive
pin 5 - V Drive
pin 6 - monitor type 1
pin 7 - monitor type 2
pin 8 - digital gnd
pin 9 - digital gnd
pin 10 - sync 2 (may be ground on some SGIs, eg Indy)
13W3-SUN
================
pin A1 - Red/R-Gnd
pin A2 - Green/G-Gnd
pin A3 - Blue/B-Gnd
pin 1 - n/c
pin 2 - n/c
pin 3 - sense 2
pin 4 - sense ret
pin 5 - Composite Sync
pin 6 - n/c
pin 7 - n/c
pin 8 - sense 1
pin 9 - sense 0
pin 10 - C-Sync ret
The pin layout is:
() 1 2 3 4 5 () ()
6 7 8 9 10
For SGIs, the monitor sense pins are (MSBit first) pins 7, 6, 2. Hi-end
machines want pin 1 Grounded, Indigo2 and Indy want it NC. Gnd means
zero, NC means 1
For Indy, Indigo2:
MonID monitor guessed
110 Single Scan 1024x768 60Hz 15"
101 Dual Scan 1280x1024 & 1024x768 60Hz 16"
100 Idem 19"
011 MultiScan 1280x1024 & 1024x768 21"
010 1280x1024, 76Hz, 16" (82 kHz line freq.)
001 DM-20 MultiScan 1280x1024 76Hz 19" or Single Scan Sony 1280x1024 72Hz
000 1280x1024 60Hz only
111 yields no monitor attached. Default to lowest res / lowest vertical
refresh (if nvram variable ``monitor'' not set to ``H'')
for hi-End SGI graphics cards:
MonID
111 No monitor
110 Single Scan 1024x768 60Hz 15"
010 MultiScan 16"
001 MultiScan 19"
--
Pete Peter Turnbull
Network Manager
University of York
15 Sep
15 Sep
1:03 p.m.
On 0829T1715, Jochen Kunz wrote:
Works beautifully, thanks ;-)
(Photos here: http://pin.if.uz.zgora.pl/~trasz/sun+sgi/)
--
If you cut off my head, what would I say? Me and my head, or me and my body?
I have the
following: SPARCstation 2 with GX card (1M mappable, rev
7), SGI GDM-20E21 monitor (Trinitron, OEM from Sony) and 13w3 cable.
Obviously they don't work together - the pinouts are said to be
slightly different in SGI and Sun. Now, is there any easy way - cut
some wires, connect the others - to make this work?
Connect the C-Sync signal from
the Sun via an 330 Ohm resistor to the
green signal. This will generate Sync-On-Green. If you are familar with
a soldering iron you can solder the resistor on the bottom side of the
GX PCB directely at the connector. Maybe you have to break the 10 extra
pins in the 13W3 cabe, because the SGI monitor may ground the pin that
caries the C-Sync signal. The pinout for the coaxial RGB-Pins is the
same on Sun, SGI und IBM.
6073
days inactive
6090
days old
3 comments
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participants (3)
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jkunz＠unixag-kl.fh-kl.de -
pete＠dunnington.plus.com -
trasz＠FreeBSD.org