Comment 33 for bug 1615864

Just for the heck of it I tried switching drivers again.

Nvidia (proprietary Tested) driver No difference at reboot or relog.

Nvidia (proprietary) No difference at reboot or relog.

X.Org X Server Nouveau will boot at 1280x720 (720P) Will not save 1920x1080 when changed. Nouveau is unstable with this system.
Video tearing and flashing within a few minuets of any screen changes from a static desktop.

I hope the above information is answering your questions.
I would like to get this resolved soon since it is getting tiresome to have to type the xrander in terminal every time.
I would place it in system startup, but it won't save after added. See Bug #1617129