Changing sync settings on Sun GDM20E20 Monitor

[Courtleigh Duquesne Cannick]

I'm using a Sun (Sony) GDM20E20 monitor on an Ultra 30 with Creator 3D.

The monitor was previously being used on a PC.

On boot up, it doesn't sync to the Creator card's 1280x1024x67hz output.

The only way I can get it to work is to reconfigure the card output to SVGA.

I've tried manipulating the settings from the monitor front panel without
success. I'm unable to locate a manual for this monitor.

Does anyone have experience with this multisync monitor on a Sun system?

[Rich Teer]

On Wed, 30 Oct 2002, Courtleigh Duquesne Cannick wrote:

> I'm using a Sun (Sony) GDM20E20 monitor on an Ultra 30 with Creator 3D.
>
> The monitor was previously being used on a PC.
>
> On boot up, it doesn't sync to the Creator card's 1280x1024x67hz output.

It might work better @76 Hz...

--
Rich Teer

President,
Rite Online Inc.

Voice: +1 (250) 979-1638
URL: http://www.rite-online.net

[ger...@gtconnect.net]

In article <THIv9.168577$%d2.58117@sccrnsc01>,

"Courtleigh Duquesne Cannick" <ccan...@imlab.org> writes:
> I'm using a Sun (Sony) GDM20E20 monitor on an Ultra 30 with Creator 3D.

I use the same monitor and switch back and forth all the time.

> The monitor was previously being used on a PC.

Irrelevant...

> On boot up, it doesn't sync to the Creator card's 1280x1024x67hz output.

not sync up in what way? And why is it at 67 Hz?

> The only way I can get it to work is to reconfigure the card output to SVGA.

Have a look at the output of eeprom and ffbconfig -prconf
There may be something there...
As Rich says use resolution setting: 1280x1024x76
Works for me.

[Henry van Cleef]

In article <Pine.GSO.4.44.021029...@grover.rite-group.com>,

Rich Teer <ri...@rite-group.com> wrote:
>On Wed, 30 Oct 2002, Courtleigh Duquesne Cannick wrote:
>
>> I'm using a Sun (Sony) GDM20E20 monitor on an Ultra 30 with Creator 3D.
>>
>> The monitor was previously being used on a PC.
>>
>> On boot up, it doesn't sync to the Creator card's 1280x1024x67hz output.
>
>It might work better @76 Hz...
>

Just for reference, I am looking right now at the screen of a Sun
GDM20E20 monitor connected to an ffb+ card on an Ultra 10.

prtdiag shows:
Bus Freq
Brd Type MHz Slot Name Model
--- ---- ---- ---- --------------------------------
----------------------
0 UPA 110 30 FFB, Double Buffered SUNW,501-4788

ffbconfig -prconf shows:
Monitor Sense ID: 4 (Sun 19" monitor)
Monitor possible resolutions: 1024x768x77, 1024x800x84, 1152x900x66,
1152x900x76, 1280x1024x67, 1280x1024x76, 960x680x112s,
960x680x108s
Current resolution setting: 1280x1024x67

And pushing the leftmost button on the monitor shows 71.6Khz/67Hz.

The monitor is on a KVM switch and has no trouble switching between
this card, the on-board graphics on a U5, and a U1 and SS20 with TGX
cards.

Don't know if this says anything beyond saying another GDM20E20 is
running 1280X1024X67.

Hank