How to set default monitor mode?

Harald Braumann harry at
Sat May 23 10:35:33 PDT 2009


thanks for the reply. I didn't realise, the monitor section wasn't
associated with the output. I now use Option "Monitor-DVI-0" ... to
associate output with monitor and that works.

 On Sat, 23 May 2009 12:13:01 -0400
Alex Deucher <alexdeucher at> wrote:
> Take a look at this page for more on how to set up monitor sections
> for multiple outputs:
> changing the identifier for your monitor to DVI-0 should do the trick.
> Section "Monitor"
> 	Identifier	"DVI-0"
> 	Modeline "1280x1024_85.00" 157.50 1280 1344 1504 1728 1024
> 1025 1028 1072 +HSync +VSync
> 	Option "PreferredMode" "1280x1024_85.00"
> EndSection
> Section "Screen"
> 	Identifier	"Default Screen"
> 	Monitor		"DVI-0"
> EndSection

If I specify a monitor in the "Screen" section, wouldn't it be natural
to use this monitor's settings as defaults? Or would that create
incompatibilities with legacy systems?
> The xserver mode selection code should probably also be adjusted.
> Picking 1856x1392 by default seems like the wrong choice.

Yes, I used the radeonhd driver once, and if I remember correctly it
picked a more sensible default.

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