[mythtv-users] New LCD TV - complains about 'mode not supported'

C.T. Paterson i.adore.my.64 at gmail.com
Tue Aug 5 13:24:37 UTC 2008


2008/8/5 David Whyte <david.whyte at gmail.com>:
>
> Cool, thanks for your help.

Happy to pass along what I learned only a few weeks ago.

>
> How do I set the mode in the xorg.conf?  I currently have the
> following, is it correct enough?
>
> Section "Device"
>        Identifier      "Intel Corporation Mobile 915GM/GMS/910GML
> Express Graphics Controller"
>        Driver          "intel"
>        BusID           "PCI:0:2:0"
>        Option          "UseFBDev"              "true"
>        Option          "UseEDID"               "false"
>        Option          "ModeValidation"        "NoEdidModes,
> NoMaxPClkCheck, NoVertRefreshCheck, NoHorizSyncCheck, NoEdidMa$
> EndSection
>
> Section "Monitor"
>        Identifier      "Generic Monitor"
>        Option          "DPMS"
>        HorizSync       28-64
>        VertRefresh     43-60
>        Modeline        "640x480_60.00"  23.86  640 656 720 800  480
> 481 484 497  -HSync +Vsync
>        ModeLine        "1360x768_60.00"  84.72  1360 1424 1568 1776
> 768 769 772 795  -HSync +Vsync
>        Option          "PreferredMode" "1360x768"
> EndSection
>
> Section "Screen"
>        Identifier      "Default Screen"
>        Device          "Intel Corporation Mobile 915GM/GMS/910GML
> Express Graphics Controller"
>        Monitor         "Generic Monitor"
>        Defaultdepth    24
>        SubSection "Display"
>                Depth   24
>                Modes           "1360x768 at 60" "640x480 at 60"
>        EndSubSection
> EndSection
>
> Cheers,
> Whytey

When you set "Modes", you are basically saying you want to use certain
modelines (the driver usually has a bunch of standard ones already
defined - like 640x480).  You can define custom modelines in the
Monitor section and that, essentially, is what you are doing.

So, you've defined a mode called "1360x768_60.00" in the Monitor
section, and you're trying to invoke a mode called "1360x768 at 60" in
the Screen section.  You need to match up these references.

While we're at it - I'm not 100% about the PreferredMode in the
Monitor section, but I imagine those names need to line up as well.

So, pick a name, and go with it consistently in your xorg.conf.

Cheers.

-- 
"My country is the world, and my religion is to do good."
 -- Thomas Paine


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