On 10/11/2016 01:24 AM, Leonid Isaev wrote: > FWIW, a quick test in a VM doesn't show this behavior. What happens if you run > xscreensaver-command -lock from an xterm? I can lock and unlock after several minutes and all is fine. It's when it has been locked for a day or so with the xterm running that it becomes unresponsive. ACPI issue? -- David C. Rankin, J.D.,P.E.