Subject: Re: Putting GDM-17E10 monitor in power-save mode?
To: Jason Thorpe <thorpej@nas.nasa.gov>
From: Aaron Brown <abrown@eecs.harvard.edu>
List: port-sparc
Date: 09/25/1996 19:34:15
> On Wed, 25 Sep 1996 18:58:17 -0400 
>  Aaron Brown <abrown@eecs.harvard.edu> wrote:
> 
>  > Well, if it is anything like the monitors and video on the SS20, to 
>  > turn the monitor off you have to kill the horizontal and vertical
>  > synch signals to the monitor. This has to be done by the video
>  > adaptor in the pizzabox, and thus by the video driver. On the SS20,
>  > I've figured out how to turn it off, but not back on :-)
>  > I don't think NetBSD supports this yet, unless I'm missing something...
> 
> I think the TCX driver in post-1.2 does ... I thought I saw something
> about it when I peered at the driver..

Yup, you're right. I missed this...

Unfortunately, the cg14 on the SS20 doesn't have the same register set as the
tcx. There seem to be two registers each to control hsync and vsync. I can
zero them out to turn off the monitor, but I haven't figured out what
to write into them to restore power (the old values don't work). Makes
it kind of hard to use :-)

--Aaron