[mythtv-users] video curiosity, point me to the right mailing list
Jay R. Ashworth
jra at baylink.com
Wed Sep 12 01:36:50 UTC 2007
On Mon, Sep 10, 2007 at 09:24:25PM -0400, Chris Ribe wrote:
> Unless there is a way to compensate for the image distortion before
> it gets to the monitor, that is. The problem with the monitor is
> that the red gun traces a line that is something like 7*sin(x/1920)
> lines above/below where it should be where x is the number of
> pixels from the left edge of the screen.
> In theory, if could just apply a filter to the red channel in X
> or the video driver, I could coax a reasonable picture out of my
> set without needing to fix the convergence. I'm intrigued by this
> possibility mostly because it is a much cooler solution than buying
> a remote. (If i just wanted an easy solution, I wouldn't be using
> So, where should I start looking for ideas on how to accomplish
> this? I have one frontend with an nvidia 5200 graphics card, a
> macbook, and a frontend that needs a new video card (I had been
> hoping to use the integrated 945G video, but it is VGA out and my
> monitor only has a DVI input), so I am pretty flexible when it
> comes to video drivers.
Your math says it's a one-channel vertical linearity problem.
But, as great a guy as I think you are, Chris: you're nuts. :-)
Buy the remote.
If for no other reason: you're going to lose vertical resolution -- in
one color channel. That can't end well.
This is kind of like my instinct to make aliases for all the ways I
mistype unix commands...
Jay R. Ashworth Baylink jra at baylink.com
Designer The Things I Think RFC 2100
Ashworth & Associates http://baylink.pitas.com '87 e24
St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274
More information about the mythtv-users