Comments on: Using MythTV to display HD recordings on an HDTV set http://blog.matthewgast.com/2008/01/03/using-mythtv-to-display-hd-recordings-on-an-hdtv-set/ A former physicist tries to make sense of technology Wed, 19 Nov 2008 11:58:32 +0000 http://wordpress.org/?v=2.5.1 By: Joseph Brower http://blog.matthewgast.com/2008/01/03/using-mythtv-to-display-hd-recordings-on-an-hdtv-set/#comment-33146 Joseph Brower Fri, 01 Feb 2008 05:06:04 +0000 http://blog.matthewgast.com/2008/01/03/using-mythtv-to-display-hd-recordings-on-an-hdtv-set/#comment-33146 By adding 120 Hz as a refresh rate and overriding the information from the display, I could push a 1080i signal to the TV. However, what I found is that a 720p signal on MythTV looked awful when converted by MythTV to 1080i. There is some loss of picture quality when displaying a 1080i signal as 720p, but it is much less noticeable. Therefore, I will stick with 720p until I can figure out how to switch video modes on the fly between 1080i and 720p. I don't quite understand what you did to add 120Hz as a refresh rate and such. Could you please either e-mail me ur xorg file with that or let me know what you did? Either way, e-mail will prolly be the best way to get a hold of me. By adding 120 Hz as a refresh rate and overriding the information from the display, I could push a 1080i signal to the TV. However, what I found is that a 720p signal on MythTV looked awful when converted by MythTV to 1080i. There is some loss of picture quality when displaying a 1080i signal as 720p, but it is much less noticeable. Therefore, I will stick with 720p until I can figure out how to switch video modes on the fly between 1080i and 720p.

I don’t quite understand what you did to add 120Hz as a refresh rate and such. Could you please either e-mail me ur xorg file with that or let me know what you did? Either way, e-mail will prolly be the best way to get a hold of me.

]]> By: Chris Stevens http://blog.matthewgast.com/2008/01/03/using-mythtv-to-display-hd-recordings-on-an-hdtv-set/#comment-30475 Chris Stevens Mon, 07 Jan 2008 16:34:54 +0000 http://blog.matthewgast.com/2008/01/03/using-mythtv-to-display-hd-recordings-on-an-hdtv-set/#comment-30475 The FX5200/5500 cards incroeectly report the pixel clock at 135.0. You can override this in xorg.conf with: -------------------------------------------- Section "Device" Identifier "Generic Video Card" Option "ModeValidation" "NoMaxPClkCheck" Driver "nvidia" EndSection -------------------------------------------- This then allows the modes specified to be handled (or at least not rejected due to max clk). The FX5200/5500 cards incroeectly report the pixel clock at 135.0.
You can override this in xorg.conf with:
——————————————–
Section “Device”
Identifier “Generic Video Card”
Option “ModeValidation” “NoMaxPClkCheck”
Driver “nvidia”
EndSection
——————————————–
This then allows the modes specified to be handled (or at least not rejected due to max clk).

]]> By: Surfing the Luminiferous Ether » Blog Archive » Fixing small font displays on MythTV HD displays http://blog.matthewgast.com/2008/01/03/using-mythtv-to-display-hd-recordings-on-an-hdtv-set/#comment-30397 Surfing the Luminiferous Ether » Blog Archive » Fixing small font displays on MythTV HD displays Sun, 06 Jan 2008 17:57:35 +0000 http://blog.matthewgast.com/2008/01/03/using-mythtv-to-display-hd-recordings-on-an-hdtv-set/#comment-30397 [...] I recently upgraded to an HDTV set, and I am finally displaying the HD recordings on my MythTV system in HD glory. Like most of my tasks with MythTV, though, it wasn’t just a straightforward connection to the HD set and away we go. [...] [...] I recently upgraded to an HDTV set, and I am finally displaying the HD recordings on my MythTV system in HD glory. Like most of my tasks with MythTV, though, it wasn’t just a straightforward connection to the HD set and away we go. [...]

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