Upstream says something outside X is probably polling every 30 sec
looking for monitors. This is unnecessary since the kernel
automatically fires events when a monitor gets connected/disconnected.
Best guess is a daemon like upowerd or keventd is running. Look in `ps
aux` to see if you have one of these running, and see if you shut it
down or kill it if the bad behavior stops. If not, look for other
daemons, services, or clients you might be running which could be
polling for monitors and try killing them off one by one to narrow what
is causing the issue for you.
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: Triaged => Incomplete
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https://bugs.launchpad.net/bugs/727979
Title:
Screen flicker approx. every 30 seconds
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