[mythtv-users] DVI connection overscan

[Piotr Romanus]

On Sat, 14 Apr 2007 14:23:09 -0400, "Raphael" <rpooser at gmail.com> said:
> I also have a DVI-HDMI cable hooked up to my TV, and at first there was 
> an insane amount of overscan. Messing around with the modeline you can 
> get rid of some of it. I used xvidtune and found a modeline I liked.


In my case the modelines that I've tried seem to be ignored. Each time I
try a new modeline I find "No valid modes for "1920x1080_cust" " message
in my Xorg.log:

(**) NVIDIA(0): Option "XvMCUsesTextures" "false
(**) NVIDIA(0): Option "ModeValidation" "NoVertRefreshCheck,
NoMaxSizeCheck, NoEdidDFPMaxSizeCheck, NoMaxPClkCheck"
(**) NVIDIA(0): Enabling RENDER acceleration
(II) NVIDIA(0): NVIDIA GPU GeForce FX 5200 at PCI:1:0:0
(--) NVIDIA(0): VideoRAM: 131072 kBytes
(--) NVIDIA(0): VideoBIOS: 04.34.20.23.aa
(II) NVIDIA(0): Detected AGP rate: 8X
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on GeForce FX 5200 at
PCI:1:0:0:
(--) NVIDIA(0):     Samsung (DFP-0)
(--) NVIDIA(0): Samsung (DFP-0): 135.0 MHz maximum pixel clock
(--) NVIDIA(0): Samsung (DFP-0): Internal Single Link TMDS
(II) NVIDIA(0): Mode Validation Overrides for Samsung (DFP-0):
(II) NVIDIA(0):     NoMaxPClkCheck
(II) NVIDIA(0):     NoMaxSizeCheck
(II) NVIDIA(0):     NoVertRefreshCheck
(II) NVIDIA(0):     NoEdidDFPMaxSizeCheck
(II) NVIDIA(0): Assigned Display Device: DFP-0
(WW) NVIDIA(0): No valid modes for "1920x1080_cust"; removing.
(WW) NVIDIA(0): 
(WW) NVIDIA(0): Unable to validate any modes; falling back to the
default mode
(WW) NVIDIA(0):     "nvidia-auto-select".
(WW) NVIDIA(0): 
(II) NVIDIA(0): Validated modes:
(II) NVIDIA(0):     "nvidia-auto-select"
(II) NVIDIA(0): Virtual screen size determined to be 1920 x 1080
(--) NVIDIA(0): DPI set to (304, 304); computed from "UseEdidDpi" X
config option
(--) Depth 24 pixmap format is 32 bpp
(II) do I need RAC?  No, I don't.


Here is my xorg.conf:



Section "Monitor"
    Identifier     "LN-S4095D"
#    Option         "DPMS"
    HorizSync      30-80
#    VertRefresh    56-75
    ModeLine       "1920x1080_cust" 74.25  1920 2008 2056 2208   1080
1084 1094 1132 +hsync +vsync interlace
#    Option         "ModeValidation" "NoEdidModes"
#    Option         "UseEdidDpi" "FALSE"
    Option          "ModeValidation" "NoVertRefreshCheck,
NoMaxSizeCheck, NoEdidDFPMaxSizeCheck, NoMaxPClkCheck"
EndSection

Section "Device"
    Identifier     "NVIDIA Corporation NV34 [GeForce FX 5200]"
    Driver         "nvidia"
    Option         "XvmcUsesTextures" "false"   
EndSection

Section "Screen"
    Identifier     "Default Screen"
    Device         "NVIDIA Corporation NV34 [GeForce FX 5200]"
    Monitor        "LN-S4095D"

#    Option         "TVStandard"     "HD1080p"  
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
        Modes      "1920x1080_cust"
    EndSubSection
EndSection


I wonder what is wrong with the above modeline.


Piotr