[Bug 29852] Changing external monitors requires X restart

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=29852

--- Comment #13 from Alex Deucher <agd5f at yahoo.com> 2010-08-30 09:42:27 PDT ---
For the record, this is not a driver bug, but part of the general common randr
behavior.  When you unplug a monitor, randr doesn't turn it off unless you
explicitly tell it to turn it off since you might have disconnected the the
monitor temporarily to adjust a cable or maybe the projector came loose, etc.
and you don't constantly want your desktop resizing or whatever when a cable
comes loose.  Some logic could probably be put into the xrandr cli tool or the
gui tools to explicitly disable monitors when a new monitor is connected to
another output and an old monitor disappears and you only have a limited number
of crtcs.

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