[mythtv-users] 9400GT PCI - No Overscan - Odd!

[Tortise]

----- Original Message ----- 
From: "Allen Edwards" <allen.p.edwards at gmail.com>
To: "Discussion about mythtv" <mythtv-users at mythtv.org>
Sent: Saturday, September 19, 2009 7:22 PM
Subject: Re: [mythtv-users] 9400GT PCI - No Overscan - Odd!


On Fri, Sep 18, 2009 at 7:35 PM, Tortise <tortise at paradise.net.nz> wrote:
> Been mucking around trying to get a mythbuntu jaunty box to behave as a
> front-end and managed to uninstall the nvidia glx and then the box would not
> start X. Tell it to restart X, press cancel and it started into some damn
> thing which was X like but apparently not nvidia X, according to NVIDIA X
> Server Settings the NVIDIA X driver was not being used. Display said it was
> running at 800x600. As it is can still remote in using VNC so I am assuming
> some sort of X was running, Xorg was running as a process.
>
> The odd thing was there was no overscan that was expected normally even at
> this resolution. This was over component into a 32" semi-HD CRT.
>
> Can anyone make sense of that as I was still expecting overscan, certainly
> from a default desktop?
>
> Can we exploit that somehow? I imagine the answer is if you want vdpau (I
> do on this box) then one has to run nvidia's glx >= 180.xx.... Still odd
> that there was no overscan!

Overscan is an S-Video thing.  Is that what you were using to drive
your semi-HD CRT?

Allen

Hi Allen

"This was over component into a 32" semi-HD CRT."  

Component is the big brother to S-Video and it also generally lumbered with overscan.

"Semi-HD" means the TV takes in 720p and 1080i, but downscales these to something in between SD and HD.