hello,<br>
after reading the mythtv wiki re: modelines (here:
<a href="http://www.mythtv.org/wiki/index.php/Modeline_Database" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.mythtv.org/wiki/index.php/Modeline_Database</a>), I am more
confused than ever.<br>
I have a new Samsung LN-T3253H TV that is connected to my Nvidia
fx5200. The TV claims to support a variety of resolutions in "PC
mode", including 1360 x 768 which it calls "optimal". The TV
specs say 720p and the native resolution is billed at 1366x768.<br>
<br>
My display is working basically out of the box with a fresh install of
Ubuntu 64-bit 7.10 using Nvidia binary drivers (although I had to cut
the resolution down to 1024x768 to get a display). The real
problem is that the TV emits a faint high-pitched
whistle ... ONLY when connected to my mythtv box (it is connected
via the VGA cable). The loudness of the whistle depends on what's
on the screen (more whitespace = quieter whistling). It does not
whistle when watching regular TV from a cable box via HDMI. <br>
<br>
This caused me to wonder whether my refresh rates (or something else)
is set wrong. A google
search and the mythtv modeline database does not have an entry
for my particular TV model. I am afraid that maybe I could break
my new tv if the settings are wrong. The TV manual has a list of
"factory optimized" refresh rates for various resolutions, but I can't
tell how (or whether) I'm supposed to translate these into a custom
modeline.<br>
<br>
So, two questions: <br>
1. am I supposed to be using a custom modeline or not? <br>
2. If yes to # 1 ... how to create one? The TV docs give only one
value for hsync and vsync per resolution, but modelines seem to have 8
of them.<br>
3. the wiki was ambiguous about whether the "Nvidia modepool
settings" concept applies when using VGA output, or does it just relate
to component / dvi? (If I understand the wiki correctly, the
Nvidia drivers have preset modelines so there is no reason to create
your own lines.)<br>
<br>
More of my configuration and additional error messages are below if
needed. xorg seems to failing in trying to detect "EDID
settings", not sure if that's relevant to my problem. Any
guidance at all would help me.<br>
<br>
Thanks,<br>
<span class="sg">
Mary<br>
<br>
nvidia drivers version: 100.14.19<br>
<br>
</span>in the xorg.0.log file, there is a message of "unable to read EDID
settings from display CRT-0" Why does it think my flat panel is a CRT?
Could this be part of my problems?<br>
<br>
also in xorg.0.log, it indicates a pixel clock of 135, but none of
the recommended settings in my tv's manual go higher than 85. No clue
how or whether to change this.<br>
<br>
My xorg.conf [as I edited it to scale down the resolution to get a working screen]:<br>
<br>
# nvidia-xconfig: X configuration file generated by nvidia-xconfig<br>
# nvidia-xconfig: version 1.0 (buildmeister@builder26) Wed Sep 12 14:29:17 PDT 2007<br>
<br>
# xorg.conf (xorg X Window System server configuration file)<br>
#<br>
# This file was generated by dexconf, the Debian X Configuration tool, using<br>
# values from the debconf database.<br>
#<br>
# Edit this file with caution, and see the xorg.conf manual page.<br>
# (Type "man xorg.conf" at the shell prompt.)<br>
#<br>
# This file is automatically updated on xserver-xorg package upgrades *only*<br>
# if it has not been modified since the last upgrade of the xserver-xorg<br>
# package.<br>
#<br>
# If you have edited this file but would like it to be automatically updated<br>
# again, run the following command:<br>
# sudo dpkg-reconfigure -phigh xserver-xorg<br>
<br>
Section "ServerLayout"<br>
<br>
# Uncomment if you have a wacom tablet<br>
# InputDevice "stylus" "SendCoreEvents"<br>
# InputDevice "cursor" "SendCoreEvents"<br>
# InputDevice "eraser" "SendCoreEvents"<br>
Identifier "Default Layout"<br>
screen 0 "Default Screen" 0 0<br>
Inputdevice "Generic Keyboard"<br>
Inputdevice "Configured Mouse"<br>
EndSection<br>
<br>
Section "Files"<br>
EndSection<br>
<br>
Section "Module"<br>
Load "glx"<br>
Load "v4l"<br>
EndSection<br>
<br>
Section "InputDevice"<br>
Identifier "Generic Keyboard"<br>
Driver "kbd"<br>
Option "CoreKeyboard"<br>
Option "XkbRules" "xorg"<br>
Option "XkbModel" "pc105"<br>
Option "XkbLayout" "us"<br>
EndSection<br>
<br>
Section "InputDevice"<br>
Identifier "Configured Mouse"<br>
Driver "mouse"<br>
Option "CorePointer"<br>
Option "Device" "/dev/input/mice"<br>
Option "Protocol" "ImPS/2"<br>
Option "ZAxisMapping" "4 5"<br>
Option "Emulate3Buttons" "true"<br>
EndSection<br>
<br>
Section "InputDevice"<br>
Identifier "stylus"<br>
Driver "wacom"<br>
Option "Device" "/dev/input/wacom"<br>
Option "Type" "stylus"<br>
Option "ForceDevice" "ISDV4"# Tablet PC ONLY<br>
EndSection<br>
<br>
Section "InputDevice"<br>
Identifier "eraser"<br>
Driver "wacom"<br>
Option "Device" "/dev/input/wacom"<br>
Option "Type" "eraser"<br>
Option "ForceDevice" "ISDV4"# Tablet PC ONLY<br>
EndSection<br>
<br>
Section "InputDevice"<br>
Identifier "cursor"<br>
Driver "wacom"<br>
Option "Device" "/dev/input/wacom"<br>
Option "Type" "cursor"<br>
Option "ForceDevice" "ISDV4"# Tablet PC ONLY<br>
EndSection<br>
<br>
Section "Monitor"<br>
Identifier "Generic Monitor"<br>
Vendorname "Generic LCD Display"<br>
Modelname "LCD Panel 1360x768"<br>
Horizsync 31.5-48.0<br>
Vertrefresh 56.0 - 65.0<br>
modeline "800x600@56" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync<br>
modeline "800x600@60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync<br>
# modeline "1280x768@60" 80.14 1280 1344 1480 1680 768 769 772 795 -hsync +vsync<br>
# modeline "1280x720@60" 74.48 1280 1336 1472 1664 720 721 724 746 -hsync +vsync<br>
Gamma 1.0<br>
EndSection<br>
<br>
Section "Monitor"<br>
Identifier "monitor1"<br>
Vendorname "Plug 'n' Play"<br>
Modelname "Plug 'n' Play"<br>
modeline "640x480@60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync<br>
Gamma 1.0<br>
EndSection<br>
<br>
Section "Device"<br>
Identifier "nVidia Corporation NV34 [GeForce FX 5200]"<br>
Boardname "nv"<br>
Busid "PCI:1:0:0"<br>
Driver "nvidia"<br>
Screen 0<br>
EndSection<br>
<br>
Section "Device"<br>
Identifier "device1"<br>
Boardname "nv"<br>
Busid "PCI:1:0:0"<br>
Driver "nvidia"<br>
Screen 1<br>
EndSection<br>
<br>
Section "Screen"<br>
Identifier "Default Screen"<br>
Device "nVidia Corporation NV34 [GeForce FX 5200]"<br>
Monitor "Generic Monitor"<br>
Defaultdepth 24<br>
SubSection "Display"<br>
Depth 24<br>
Virtual 800 600<br>
Modes "800x600@60" "800x600@56"<br>
EndSubSection<br>
EndSection<br>
<br>
Section "Screen"<br>
# <br>
Identifier "screen1"<br>
Device "device1"<br>
Monitor "monitor1"<br>
Defaultdepth 24<br>
SubSection "Display"<br>
Depth 24<br>
Modes "640x480@60"<br>
EndSubSection<br>
EndSection<br>
<br>
Section "ServerFlags"<br>
<br>
EndSection<br>