I filmed my computer boot up to better show what happens. The right monitor is on the integrated video card (the R7), and doesn't show anything initially. The center and left monitor turn on and mirror each other during boot, and show grub and most of the kernel and systemd messages, then at some point all output is sent to the right monitor. I believe the systemd log says something along the lines of "detecting all video cards" at that point.
** Attachment added: "Computerbootup.webm" https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1692437/+attachment/5235238/+files/Computerbootup.webm -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1692437 Title: Monitors on second GPU not working after upgrade to zesty To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1692437/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
