xf86Crtc.cを眺めるに、

Section "ServerLayout"
Identifier     "single head configuration"
Screen      0  "Screen0" 0 0
InputDevice    "Keyboard0" "CoreKeyboard"
EndSection
  
Section "InputDevice"
Identifier  "Keyboard0"
Driver      "kbd"
Option      "XkbModel" "pc105"
Option      "XkbLayout" "us"
EndSection
  
Section "Modes"
Identifier "HDTV"
Modeline "1920x1080"  148.50  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync
Modeline "720x480"   27.00  720 736 798 858  480 489 495 525 -hsync -vsync
EndSection
  
Section "Monitor"
Identifier "uso800"
Option "Ignore" "True"
EndSection
  
Section "Monitor"
Identifier "KDL40V2500"
HorizSync 15-70
VertRefresh 58-62
UseModes "HDTV"
Option "Enable" "True"
EndSection
  
Section "Device"
Identifier  "946GZ"
Driver      "intel"
#       Driver      "i810"
Option      "AccelMethod" "EXA"
Option      "Monitor-VGA" "uso800"
EndSection
  
Section "Screen"
Identifier "Screen0"
Device     "946GZ"
Monitor    "KDL40V2500"
DefaultDepth     24
SubSection "Display"
Viewport   0 0
Depth     24
EndSubSection
EndSection

こうか。

Monitor-TMDS-1では引き込めなくて、Monitor-VGAで弾いたあげくにEnable True。

で引き込めたあとはEDIDとれるのでModelineもいらないのかな？

しかし、Monitor-hoge OPTIONはいずこで定義してるんだろう。

むずいなぁ。モニタの電源入ってると確かにほぼzeroconfなんだけど。