Can we please expand on this firewire use for a comcast box?<br>
<br>
I was under the impression this was used as a comm channel for the
mythbox to send signals to change channels and such much like a similar
usb connection. Am I wrong?<br><br><div><span class="gmail_quote">On 10/11/05, <b class="gmail_sendername">Robert Denier</b> <<a href="mailto:denier@umr.edu">denier@umr.edu</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Tue, 2005-10-11 at 13:56 -0400, R. Stavros Bezas wrote:<br>> Robert,<br><br>> In regards to the "1:1 pixel mapping" idea you suggested: Do you have<br>> any more information regarding this so I can look further into it, I
<br>> am curious to find out more about it.<br><br>1:1 mapping only applies to discrete devices like lcd's and dmd (digital<br>micromirror device). Thanks to google I now know that is what DLP uses.<br>(This is difference between a technical article read years ago and
<br>something useful.)<br><br>At any rate those devices have some real physical resolution since there<br>is a discrete number of elements. Perhaps it is 1920x1080. I don't<br>know. What you want to do is set your graphics card to that physical
<br>resolution and use a dvi/hdmi cable to send it to your tv.<br><br>Now the key to 1:1 pixel mapping is your sending digital data for say<br>coordinate 100,500 over that dvi cable. That data should only be used<br>to change the intensities associated with the 100,500th element. That
<br>is all there is to it. One would think it would be obvious and work<br>everywhere there is a digital connection, but it doesn't.<br><br>The vizio I have, for one, I couldn't get it to work with the hdmi<br>connection, but apparently many tv's take that digital signal and
<br>rescale it and make it fit the available pixels, hence even if you input<br>the exact size for your xorg.conf file, you get something that is<br>slightly smeared on your screen.<br><br>How do you determine if this is happening? Well create a png file that
<br>is composed of a black and white lines arranged vertically. Black lines<br>for the even numbered lines, and white for the odd or visa versa. Show<br>that on your tv and if it looks even and uniform then you have 1:1
<br>mapping, if not, then not.<br><br>Again, if its mostly video your showing, I doubt you can really tell<br>from a few feet away. You might tell with text, and well it will be<br>obvious with that kind of prepared image. In general though a 1:1
<br>mapping should make things a little sharper than it otherwise be when<br>sent from a computer.<br><br>Note that you may not be able to manage your full resolution as a 1:1<br>mapping. The panel I'm getting is 1366x768 and I've read reports that
<br>you can do 1360x768 and throwing away 6 lines.<br><br>At any rate good luck..<br><br>-Robert<br><br><br><br><br><br><br><br><br>_______________________________________________<br>mythtv-users mailing list<br><a href="mailto:mythtv-users@mythtv.org">
mythtv-users@mythtv.org</a><br><a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users">http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</a><br><br><br></blockquote></div><br><br clear="all"><br>-- <br>Phil Strong
<br>Synergetic Data Systems<br>(w) 240 793 6565<br><a href="mailto:pstrong@synergetic.us">pstrong@synergetic.us</a>