[mythtv-users] Ahh - Evil xorg and modelines

William Munson william_munson at bellsouth.net
Wed Jun 6 17:04:14 UTC 2007


Damian Surr wrote:
> and here's my xorg.conf:
>
>
>   
--------snip--------------
> #ModeLine "1024x768" 118.1 1024 1096 1208 1392 768 769 772 816
> #ModeLine "1024x768" 116.8 1024 1096 1208 1392 768 769 772 815
> #ModeLine "1024x768" 115.7 1024 1096 1208 1392 768 769 772 815
> #Modeline "1024x768 at 60" 64.56 1024 1056 1296 1328 768 783 791 807
> #Modeline "1024x768 at 70" 78.36 1024 1056 1352 1384 768 783 792 807
> Modeline "1024x768 at 75" 85.56 1024 1056 1376 1408 768 782 792 807
> #Modeline "1024x768 at 85" 100.94 1024 1056 1432 1464 768 782 793 807
> #    Modeline "1024x768 at 60" 64.56 1024 1056 1296 1328 768 783 791 807
> # 1024x768 @ 60.00 Hz (GTF) hsync: 47.70 kHz; pclk: 64.11 MHz
> #  Modeline "1024x768_60.00"  64.11  1024 1080 1184 1344  768 769 772 
> 795  -HSync +Vsync
> #    Modeline     "1024x768" 80.71 1024 1080 1192 1360 768 769 772 802
> #    Modeline     "1024x768" 79.52 1024 1080 1192 1360 768 769 772 801
> #    Modeline     "1024x768" 78.43 1024 1080 1192 1360 768 769 772 801
> # Modeline     "800x600" 48.18 800 840 920 1040 600 601 604 626
> # Modeline     "800x600" 47.53 800 840 920 1040 600 601 604 626
> # Modeline     "800x600" 46.87 800 840 920 1040 600 601 604 626
> # Modeline     "768x576" 44.83 768 808 888 1008 576 577 580 601
> # Modeline     "768x576" 43.52 768 800 880 992 576 577 580 601
> # Modeline     "768x576" 42.93 768 800 880 992 576 577 580 601
> # Modeline     "640x480" 30.25 640 664 728 816 480 481 484 501
> # Modeline     "640x480" 29.84 640 664 728 816 480 481 484 501
> # Modeline     "640x480" 29.43 640 664 728 816 480 481 484 501
>     Option         "DPMS"
> EndSection
>
>   
----------snip-----------
> Section "Screen"
>     Identifier     "Default Screen"
>     Device         "nVidia Corporation NV34 [GeForce FX 5200]"
>     Monitor        "BenQ W100"
>     DefaultDepth    24
>     Subsection "Display"
>             Depth       24
>                 Modes       "1024x768"
>     EndSubsection
> EndSection
>   

There is a problem here. In the top snip you define only one active modeline

Modeline "1024x768 at 75" 85.56 1024 1056 1376 1408 768 782 792 807

but in the "Screen" section you tell xorg to use "1024x768" which is not 
defined and is not the same as "1024x768 at 75". Another thing that may be 
an issue is the use of @ in your modeline. I may be all wrong here but 
changing the modeline identifier to "1024x768_75" may make things happier.

Modeline "1024x768_75" 85.56 1024 1056 1376 1408 768 782 792 807


Section "Screen"
    Identifier     "Default Screen"
    Device         "nVidia Corporation NV34 [GeForce FX 5200]"
    Monitor        "BenQ W100"
    DefaultDepth    24
    Subsection "Display"
            Depth       24
                Modes       "1024x768_75"
    EndSubsection
EndSection

---------------------

And since you are grabbing at straws at this point. I will pass along my 
working modelines for my philips HDTV. I also had many problems finding 
a modeline that would work with my set and they may just work for you too..

        ModeLine    "my540p" 37.26 824 944 1048 1104 468 514 528 563 
+hsync +vsync
        Mode "my1080i"
                DotClock 74.52
                HTimings 1640 1888 2096 2208
                VTimings 920 1012 1028 1126
                Flags "-HSync" "-VSync" "Interlace"
        EndMode

The second entry is using an alternative mode specifying format but is 
still perfectly valid. Both are for 16:9 displays and are 60Hz so they 
should work fine for your use.







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