[Bug 49789] External monitor flickers on xrandr or cat /sys/class/drm/card0-VGA-1/status

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=49789

--- Comment #3 from Harald Judt <h.judt at gmx.at> 2012-05-11 08:10:30 PDT ---
Can I somehow find out (log files, whatever), whether the monitor has an EDID
or not, after it has been connected? Because then I could turn off the polling
for the time being, or at least reduce the polling interval.

With regard to the events: I've tried using udev to react to the hotplug
events, but it wouldn't work reliably. It would successfully recognize a
monitor the first time, but fail to trigger on disconnect or later connect
attempts. So unfortunately, my approach was and probably is the only
viable/reliable here to do it automatically.

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