[mythtv-users] Phillips HDTV - xorg.conf - cannot see EDID

[Mark Goldberg]

Dave Wrote:

>I have connected it to my ASUS M2NPV-VM motherboard with DVI and
>component output.
>
>I connected it to the HDMI input on the TV via a DVI to HDMI converter
>from the PC.
>
>I have attempted multiple mods to my xorg.conf file based on lots of
>different posts I can find on the internet. Unfortunately, I don't
>really know what I am doing and it is not recognizing the EDID output
>from the TV.


This may actually be a hardware problem with the M2NPV-VM. I have seen
a suggestion to add a resistor
to the motherboard as it has insufficient pullup or pulldown (don't
remember which) on the line to get
the EDID back from the monitor. I did not want to do that.

I solved it by using ModeValidation options and specifying the limits
manually. The following subsections
work really well at 1080P using a DVI to HDMI cable to a Plasma. Using
more than one mode for different
sources does not work. After switching modes using xRandr, the
reciever card never locks onto a signal again.
I don't know why they should interact, but it looks so good at 1080p
and the 6150 video scales well enough
at 1080p that I'm not too worried about it.

The Modeline is tweaked for the specific monitor. The ModeValidation
options causes the driver to not
provide any internal modes and use the ones I specify. Be careful to
specify modes that work.

The M2NPV-VM switches from the component output in text mode to the
DVI in graphics mode. I have both
connected to the TV so I can see it boot up, and if it fails to go
into graphics, I can see the errors in text mode.





Section "Monitor"

    Identifier     "Monitor0"
    ModelName      "Plasma"
    HorizSync       15.0 - 96.0
    VertRefresh     20.0 - 160.0
    ModeLine "NTSCDVD5994p" 27.0 720 736 800 858 480 484 492 525
    ModeLine "NTSCDVD5994i" 13.5 720 736 800 858 480 484 492 525 Interlace
    ModeLine "ATSC-720-59.94p" 74.176 1280 1320 1376 1650 720 722 728 750
    ModeLine "ATSC-1080-59.94i" 74.176 1920 2008 2064 2200 1080 1082
1088 1125 Interlace
    ModeLine "ATSC-1080-59.94p" 148.352 1920 2008 2064 2200 1080 1082 1088 1125
    Option "DPI"   "60 x 60"
   Option         "ConnectedMonitor" "DFP"
   Option         "UseDisplayDevice" "DFP"
   Option         "UseEDID" "FALSE"
   Option         "ExactModeTimingsDVI" "TRUE"
   Option         "DynamicTwinView" "FALSE"
EndSection

Section "Device"
    Identifier     "Videocard0"
    Driver         "nvidia"
    Option         "NvAGP" "3"
    Option "ConstantDPI" "FALSE"
    Option "UseEvents" "TRUE"
    Option "ModeValidation" "AllowInterlacedModes , NoVertRefreshCheck
, NoDFPNativeResolutionCheck, NoVesaModes , NoEdidModes ,
NoXServerModes , NoPredefinedModes"


EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Videocard0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Viewport    0 0
        Depth       24
        Modes      "ATSC-1080-59.94p" "NTSCDVD5994p"
    EndSubSection
EndSection

Note that as far as I know Nvidia driver 100.14.11 is the last one
that does not give you the "pink screen of death".
You can install this on a late kernel using instructions at
http://www.linuxinsight.com/nvidia-linux-driver-100.14.11-and-linux-kernel-2.6.23.html




Good Luck

Mark Goldberg