One of those traces - with-displays-applet-gnome-settings-daemon.trace -
is with the displays capplet open, right? And that one works correctly?
It seems that g-s-d is submitting an identical set of RANDR requests;
the differences are in the other events that occur. I suspect that this
might have the same root cause as bug 828623 and bug 861426 and that
this seems to be a timing-related issue in the driver or kernel
(probably the kernel) around modesetting.
** Changed in: gnome-settings-daemon (Ubuntu)
Status: Confirmed => In Progress
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https://bugs.launchpad.net/bugs/820327
Title:
Fn+F7 cycling gives external monitor incorrect resolution on Thinkpad
x220
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