Setting up a VAXstation

[Peter C. Wallace]

On Tue, 2 Oct 2007, Sridhar Ayengar wrote:

> Date: Tue, 02 Oct 2007 16:45:42 -0400
> From: Sridhar Ayengar <ploopster at gmail.com>
> Reply-To: "General Discussion: On-Topic and Off-Topic Posts"
>     <cctalk at classiccmp.org>
> To: General Discussion:  On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
>     ;
> Subject: Re: Setting up a VAXstation
> 
> Peter C. Wallace wrote:
>>> BTW, if it's a GPX it's limited to 1024x864, and if it's an SPX, it can do 
>>> 1280x1024, which your multi-sync monitor should be capable of.  I might be 
>>> remembering incorrectly, and if I am, someone please correct me.
>>> 
>> 
>> SPX will do 1024x1280 I think at 66Hz and maybe 72 Hz with a crystal 
>> change.
>
> Yes, but I wasn't getting into refresh rates.  The fact remains that the GPX 
> can't do anything other than 1024x864, which isn't well supported by 
> monitors.
>
> Peace...  Sridhar
>

Actually CRT monitors rarely care about resolution, only horizontal and 
vertical frequencies. AFAICR GPX and the mono VR262 ends up being something 
like 48 KHz horizontal (which is standard) and ~55 Hz vertical, which gives me 
a headache but should be in range for any decent Multisync monitor.

For GPX and SPX, you do need a monitor that can do Sync On Green (SOG), For 
example the Sony 400PS on my desk works fine with GPX output (got a VS2000 
connected ATM)


Peter Wallace