This bug affect me too.
I have a intel graphic card and sometimes when I watch a video or when I login
the screen shakes and changes resolution.
So I decided to switch off the TV output writing a little xorg.conf (before
there wasn't) like this:
Section "Monitor"
Identifier "TV1"
Option "Ignore" "True"
EndSection
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https://bugs.launchpad.net/bugs/617421
Title:
xrandr recognizing TV1 as connected although isn't
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