I can confirm, that answer #45 by James McKenna solved the problem for me! James, thank you!
I am running Linux Mint Cinnamon on an Eglobal i7 fanless barebone and the problem drove me nuts. There are two monitors connected to my computer: - Main monitor: LG 21:9 connected with DP - Second monitor: Acer 16:9 connected with HDMI The main monitor wakes up in less than 1 second from suspend mode, the second screen takes up to 5 seconds. Nevertheless all windows were move to the second - the slow! - monitor. Disabling SNA fixed the problem for me! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1295267 Title: Windows change Monitor/Desktop after screen lock To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1295267/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs