bluetooth stack looses connection to bluetooth devices when tlp is installed

[Wolf Rogner]

In Ubuntu Budgie bluetooth connection is lost in regular intervals (5mins).

Thus my mouse stops working, my headset stops playing music.

Reconnecting my mouse takes ages requiring a restart of bluez and reconnecting the mouse.

This issue became worse ever since installing budgie (17.04) in May.

(during writing this, the mouse stopped working again)

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: bluez 5.43-0ubuntu1
ProcVersionSignature: Ubuntu 4.10.0-32.36-generic 4.10.17
Uname: Linux 4.10.0-32-generic x86_64
NonfreeKernelModules: nvidia_uvm wl nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.4-0ubuntu4.5
Architecture: amd64
CurrentDesktop: Budgie:GNOME
Date: Tue Aug 15 23:02:08 2017
InstallationDate: Installed on 2017-05-25 (81 days ago)
InstallationMedia: Ubuntu-Budgie 17.04 "Zesty Zapus" - Release amd64 (20170412)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: Apple Inc. MacBookPro10,1
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-32-generic.efi.signed root=UUID=873566f9-4c01-4dae-8ca9-99c95dfbe269 ro quiet splash vt.handoff=7
SourcePackage: bluez
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/21/2012
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP101.88Z.00EE.B03.1212211437
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-C3EC7CD22292981F
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro10,1
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-C3EC7CD22292981F
dmi.modalias: dmi:bvnAppleInc.:bvrMBP101.88Z.00EE.B03.1212211437:bd12/21/2012:svnAppleInc.:pnMacBookPro10,1:pvr1.0:rvnAppleInc.:rnMac-C3EC7CD22292981F:rvrMacBookPro10,1:cvnAppleInc.:ct10:cvrMac-C3EC7CD22292981F:
dmi.product.name: MacBookPro10,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
hciconfig:
 hci0: Type: Primary Bus: USB
  BD Address: 14:10:9F:D2:25:F8 ACL MTU: 1021:6 SCO MTU: 64:1
  UP RUNNING PSCAN
  RX bytes:21297526 acl:766364 sco:0 events:1617 errors:0
  TX bytes:14741 acl:474 sco:0 commands:583 errors:0

[fossfreedom (fossfreedom)]

just wondering if this is a TLP / bluetooth interaction issue

Can you have a look here - http://linrunner.de/en/tlp/docs/tlp-faq.html#btusb

[Wolf Rogner (war-rsb)]

could be. I already had issues with TLP (related to suspend to RAM).

Must have been introduced with the latest kernel update though (as the former issue has been resolved).

[Wolf Rogner (war-rsb)]

extended measures demonstrate a loss of connection every two minutes on average.

[Wolf Rogner (war-rsb)]

Uninstalling tlp (+tlp-rdw, budgie-desktop-environment, ubuntu-budgie-desktop)
eliminates the issue completely

Also #1711382 does not occure any more (however, I see no relation between the two)

[Wolf Rogner (war-rsb)]

I think, this should be a tlp related issue (didn't know at the time of filing it).

[Daniel van Vugt (vanvugt)]

OK, let's make this just a tlp issue. I don't see any bluez bug here anyway.

[linrunner (linrunner)]

Did you try the workaround from #2? What was the result?

A kernel driver or bluetooth device that does not properly implement power saving cannot be fixed in TLP. Your only option is to disable power saving for the device.