https://bugzilla.kernel.org/show_bug.cgi?id=199451 --- Comment #6 from Ethan Hsieh (ethan.hsieh@xxxxxxxxxxxxx) --- Failure rate is not 100%. Here is the log that system can suspend successfully. //Press "Suspend button" from UI [ 58.989221] Suspending console(s) (use no_console_suspend to debug) [ 59.933198] smpboot: CPU 3 is now offline //Suspend //System can suspend successfully. //Press USB keyboard to wake up system //Resume [ 59.937275] ACPI: Low-level resume complete [ 59.942637] ACPI: Waking up from system sleep state S3 [ 60.002027] pm_wakeup_dev_event: dev_name=0000:00:14.0 [ 60.057167] PM: early resume of devices complete after 71.506 msecs [ 60.229524] hci_send_acl, hci0 chan ffffa03993668200 flags 0x0000 [ 60.229525] hci_queue_acl, hci0 nonfrag skb ffffa0398dd8b300 len 11 [ 60.229560] hci_send_frame, hci0 type 2 len 11 Please refer to attached file (1_kern.log_4.13) for detailed log. BT device: https://www.logitech.com/en-us/product/multi-device-keyboard-k480 -- You are receiving this mail because: You are the assignee for the bug.-- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html