Thanks, Christopher, for advising the BIOS update. However, it didn’t improve the situation. The system is still completely frozen when I reopen the display.
The output of 'sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date' is the following: F.39 05/26/2015 ** Changed in: linux (Ubuntu) Status: Expired => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1548850 Title: Suspend-Resume freezes the computer completely To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1548850/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs