So after some more investigation it's clear that the problem is inconsistent. Sometimes wake immediately follows suspend, sometimes not. Sometimes it takes a while to wake up, up to a few minutes, other times it's immediate. Occasionally, it seems to suspend fine; or maybe I'm not waiting long enough for the wake.
I noticed also that I can't stop bluetoothd: $ ps aux | grep bluetoothd root 8305 0.0 0.0 36520 4388 ? Ss 11:35 0:00 /usr/lib/bluetooth/bluetoothd -d bbogart 8598 0.0 0.0 22000 1040 pts/2 R+ 11:40 0:00 grep --color=auto bluetoothd $ sudo service bluetooth stop $ ps aux | grep bluetoothd root 8662 2.5 0.0 36520 4324 ? Ss 11:41 0:00 /usr/lib/bluetooth/bluetoothd -d bbogart 8670 0.0 0.0 22000 1088 pts/2 S+ 11:41 0:00 grep --color=auto bluetoothd Why would bluetoothd restart after I've explicitly told it to stop? Now, if I put the stop and start service script in /lib/systemd/system- sleep/, then the NUC does not wake up after hours. The problem persists when: Mouse is switched off (before entering suspend) Mouse is changed to USB (not BT) mode Bluetooth is turned "off" (via blueman applet) Removing bluez may also solve the problem, I'm testing that now. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1823076 Title: Intel NUC (8I3BEH1) wakes up immediately after suspend if Bluetooth is still enabled Status in bluez package in Ubuntu: Incomplete Bug description: After replacing my USB mouse with a BT mouse, I noticed my machine would no longer suspend without immediately waking up. i.e. I suspend and see the light go into the slow fade in and out for one cycle and then goes solid and the display wakes up again. If I disable BT (via blueman applet) suspend works fine. I've fixed this by shutting down the BT service before suspend, and starting it back up on wake, as indicated here: https://askubuntu.com/questions/797590/ubuntu-wakes-up-immediately- after-suspend Perhaps this script should be included in blueZ as suspend issues seem very hard to debug and the immediate wake after suspend could be caused many any number of things. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: bluez 5.48-0ubuntu3.1 [modified: lib/systemd/system/bluetooth.service] ProcVersionSignature: Ubuntu 4.15.0-46.49-generic 4.15.18 Uname: Linux 4.15.0-46-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 CurrentDesktop: XFCE Date: Wed Apr 3 13:16:14 2019 InstallationDate: Installed on 2019-02-09 (53 days ago) InstallationMedia: Xubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) InterestingModules: rfcomm bnep btusb bluetooth MachineType: Intel(R) Client Systems NUC8i3BEH ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-46-generic root=UUID=9c982b36-8142-4719-810a-e06f81cab223 ro quiet splash vt.handoff=1 SourcePackage: bluez UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/15/2018 dmi.bios.vendor: Intel Corp. dmi.bios.version: BECFL357.86A.0051.2018.1015.1513 dmi.board.name: NUC8BEB dmi.board.vendor: Intel Corporation dmi.board.version: J72693-304 dmi.chassis.type: 3 dmi.chassis.vendor: Intel Corporation dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnIntelCorp.:bvrBECFL357.86A.0051.2018.1015.1513:bd10/15/2018:svnIntel(R)ClientSystems:pnNUC8i3BEH:pvrJ72753-303:rvnIntelCorporation:rnNUC8BEB:rvrJ72693-304:cvnIntelCorporation:ct3:cvr2.0: dmi.product.family: Intel NUC dmi.product.name: NUC8i3BEH dmi.product.version: J72753-303 dmi.sys.vendor: Intel(R) Client Systems hciconfig: hci0: Type: Primary Bus: USB BD Address: 00:BB:60:50:92:5D ACL MTU: 1021:4 SCO MTU: 96:6 UP RUNNING RX bytes:1912660 acl:106009 sco:0 events:337 errors:0 TX bytes:12331 acl:74 sco:0 commands:204 errors:0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1823076/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
