This bug was fixed in the package xorg-server - 2:1.18.3-1ubuntu5
---------------
xorg-server (2:1.18.3-1ubuntu5) yakkety; urgency=medium
* randr-adjust-masters-last-set-time.diff,
randr-do-not-check-the-screen-size.diff:
Fix issues changing display mode on prime setups. (LP: #1586260)
-- Timo Aaltonen <[email protected]> Fri, 27 May 2016 11:51:56 +0300
** Changed in: xorg-server (Ubuntu Yakkety)
Status: Triaged => Fix Released
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https://bugs.launchpad.net/bugs/1586260
Title:
System freeze & no display if set External monitor as primary
(Performance mode)
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