[rescue] Sun 13w3 to VGA to HDMI

[john ferguson]

Message: 2
Date: Mon, 11 Oct 2021 14:46:32 -0400
From: john ferguson<jferg977 at aol.com> To: rescue at sunhelp.org Subject: [rescue] Sun 13w3 to 
VGA to HDMI Message-ID: <7eecc651-014b-185b-e923-ce7b86acf891 at aol.com> 
Content-Type: text/plain; charset=utf-8; format=flowed The idea of 
replacing my big HP hdmi and vga with a new monitor with pip was 
probably crazy. The very nice new Samsung UHD monitor has two HDMI ports 
and a Display port which works well with the Nvidia 1070X on the PC. I 
had thought that installing a VGA to HDMI converter between the cable 
which with the correct dip switch settings worked just fine in exporting 
1152x900 at 76Hz to the HP referred to above would work on the new 
monitor. But no-joy. It looks like the VGA to HDMI converter must synch 
at 60 Hz.B I looked through the offerings on the net and couldn't find 
any that if they specified input requirements listed 76 or 66 Hz which 
is what I believe the SPARCstation10's output is limited to. Has anyone 
done this successfully and if so, how did you do it? john 
------------------------------ Message: 3 Date: Tue, 12 Oct 2021 
03:00:44 +0200 From: Malte Dehling <mdehling at gmail.com> To: The Rescue 
List <rescue at sunhelp.org> Subject: Re: [rescue] Sun 13w3 to VGA to HDMI 
Message-ID: <20211012010044.gbsmwi4a4kqhallt at x230> Content-Type: 
text/plain; charset=us-ascii Hi John, On Mon, Oct 11, 2021 at 02:46:32PM 
-0400, john ferguson wrote:

> It looks like the VGA to HDMI converter must synch at 60 Hz.B  I looked
> through the offerings on the net and couldn't find any that if they
> specified input requirements listed 76 or 66 Hz which is what I believe
> the SPARCstation10's output is limited to.

I have no experience with such converters but would be interested in
hearing more if you can get this to work.

In case the issue is really syncing at 60Hz, you might be able to get
your SS10 to ouput that.  What frame buffer do you use?

Cheers,
Malte

-- Malte Dehling <mdehling at gmail.com>
The FrameBuffer is a TGX which from the documentation supports 
1024x768x60 which should work fine. Machine is a Sparc10 running 4.1.4. 
I would have thought that I could reset the default using setenv, but if 
I can, it isn't obvious.
I need to read up on EEPROM reprogramming.
Yikes.
best,
John