how to ignore monitor's EDID?

Tomasz Chmielewski mangoo at
Sun Dec 28 08:25:16 PST 2008

David Greaves schrieb:
> Tomasz Chmielewski wrote:
>> Tomasz Chmielewski schrieb:
>>> Right, have it in man radeon as well.
>>> The only side effect is that now KDE4's panel has a 1024 px width when
>>> the session loads, even though the desktop starts with 1280 px width -
>>> and I have to resize it each time.
>>> But I guess that's a question for KDE's mailing list...
>> Well, it is somehow related to the X configuration...
>> With the configuration below, X starts in 1024x768 instead of 1280x1024
>> - why (then, KDE switches to 1280x1024, but the panel stays at 1024 px)?
> Can you pastebin the full log and the full config.

Full config (it's a multiseat setup):

Full log for this card:

>> I even added:
>>     Option "PanelSize" "1280x1024"
>> but it doesn't make any difference - X starts in 1024x768.
>> So - how can I start X in 1280x1024 when I use "IgnoreEDID"    "on" option?
> Did you keep this line?
> modeline        "1280x1024 at lcd" 108 1280 1326 1440 1688 1024 1025 1028 1066

I didn't have it - but I added it and it made no difference.

> AFAIK EDID tells the card about supported modes and timings. Without it you need
> a manual modeline.

Tomasz Chmielewski

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