[mythtv-users] No picture on hdtv from nvidia fx5200 dvi to hdmi

[Tim Shannon]

I still have no picture. There is a green line at the top of the screen that
shows up when the mythbox starts, then the tv goes blue, because it can get
a signal.

My startx --verbose 6 Xorg.0.log file is here
http://docs.google.com/Doc?id=ddjgs48j_18d3zr8ghh if anyone wants to see it.

The first thing that caught my eye was this:
 Code:

(II) NVIDIA(0): Frequency information for Philips (DFP-0):
(II) NVIDIA(0):   HorizSync   : 31.000-80.000 kHz
(II) NVIDIA(0):   VertRefresh : 47.000-85.000 Hz
(II) NVIDIA(0):     (HorizSync from EDID)
(II) NVIDIA(0):     (VertRefresh from EDID)
(II) NVIDIA(0):
(II) NVIDIA(0): --- Building ModePool for Philips (DFP-0) ---
(II) NVIDIA(0):   Validating Mode "1920x1080":
(II) NVIDIA(0):     1920 x 1080 @ 60 Hz
(II) NVIDIA(0):     For use as DFP backend.
(II) NVIDIA(0):     Mode Source: EDID
(II) NVIDIA(0):       Pixel Clock      : 148.50 MHz
(II) NVIDIA(0):       HRes, HSyncStart : 1920, 2008
(II) NVIDIA(0):       HSyncEnd, HTotal : 2052, 2200
(II) NVIDIA(0):       VRes, VSyncStart : 1080, 1084
(II) NVIDIA(0):       VSyncEnd, VTotal : 1088, 1125
(II) NVIDIA(0):       H/V Polarity     : -/-
(WW) NVIDIA(0):     Mode is rejected: PixelClock (148.5 MHz) too high for
(WW) NVIDIA(0):     Display Device (Max: 135.0 MHz).

And doing some research I found this option:
Option "ModeValidation" "NoMaxPClkCheck"

with the comment that Quote:
  The FX5200/5500 cards incroeectly report the pixel clock at 135.0.
. I have a FX5200, so that sounded promising, but still no change.

Farther down in my log, you'll see that the highest resolution mode that is
valid is:

 Code:

(II) NVIDIA(0):   Validating Mode "1360x768":
(II) NVIDIA(0):     1360 x 768 @ 60 Hz
(II) NVIDIA(0):     For use as DFP backend.
(II) NVIDIA(0):     Mode Source: EDID
(II) NVIDIA(0):       Pixel Clock      : 85.50 MHz
(II) NVIDIA(0):       HRes, HSyncStart : 1360, 1424
(II) NVIDIA(0):       HSyncEnd, HTotal : 1536, 1792
(II) NVIDIA(0):       VRes, VSyncStart :  768,  771
(II) NVIDIA(0):       VSyncEnd, VTotal :  778,  795
(II) NVIDIA(0):       H/V Polarity     : -/-
(II) NVIDIA(0):     Mode is valid.

So just to test out the theory that valid modes should work, I wiped my xorg
file clean, started up the nvidia settings manager, and set my screen to
that specific mode. I saved the settings to my xorg.conf file, and rebooted
the machine.

Still nothing. I'm started to think that it wasn't a driver issue, but maybe
some weird issue with my tv, so I downloaded a firmware update for my tv and
installed it. Wiped my xorg, and reset it with nvidia-xconfig, and still
nothing.

I'm not quite sure what I should try next.  Does anyone have a link that
describes how I can use the EDID info from the Xorg.0.log file and manually
set the mode line in the xorg file?



<http://docs.google.com/Doc?id=ddjgs48j_18d3zr8ghh>
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