Same problem occurs at 17.04 daily build (details tab shows 16.10 for some reason, even though lsbrelease reports right version string)
** Attachment added: "xorglog1704.txt" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1553441/+attachment/4803960/+files/xorglog1704.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1553441 Title: Only one monitor working at the time (xorg-amdgpu) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1553441/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs