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Re: re-probing DDC/EDID

On Thu, 2009-05-21 at 23:38 -0700, perryh_(_at_)_pluto_(_dot_)_rain_(_dot_)_com wrote:
> Is there any way to re-probe the monitor's DDC/EDID while the
> X server is running?
> I don't expect the server to change the settings it is _using_
> without restarting, but would like to get the list of supported
> Modelines for a newly-connected monitor -- as would be generated
> in the course of "Xorg -configure" -- while the server continues
> to run using its old settings.  Of course there would be no need
> to re-probe anything but the monitor, since all other hardware
> remains the same.
> The motivation is to simplify a monitor upgrade from:
> * Log out of X session (restarts X).
> * Disable xdm in /etc/ttys (shuts down X).
> * Xorg -configure.
> * Merge the Modelines from the "Xorg -configure" output into
>   the existing xorg.conf -- using the text-mode console (or
>   restart X with the old settings just to do this merge).
> * Re-enable xdm in /etc/ttys (restarts X).
> * Log in/start new X session.
> to
> * Re-probe monitor.
> * Merge the new Modelines into xorg.conf.
> * Log out / log in (restarts X session using new settings).



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Robert Noland <rnoland_(_at_)_FreeBSD_(_dot_)_org>

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