apport information ** Tags added: apport-collected eoan
** Description changed: Hi, I have a bluetooth keyboard that I use for my laptop, which runs Kubuntu 19.04. I noticed though, that a short while after connecting the keyboard, the CPU fan goes on and one of the threads is at 100%. If I open a terminal and type "top", it shows that a process called bluetoothd is taking 12% of the CPU power which is a full thread (100/8=12.5). I'm not sure what it's doing, but it doesn't require that much CPU power to work. If I end the process and restart it, the keyboard works fine and the CPU is calm until it happens again (about 20 minutes later). I reinstalled bluez and even tried recompiling from source, but the problem persists. My specs: Version of bluetoothd: 5.50 Linux Kernel: 5.3.0-46-generic KDE Plasma Version 5.16.5 Thank you, Isaac Cohen + --- + ProblemType: Bug + ApportVersion: 2.20.11-0ubuntu8.8 + Architecture: amd64 + CurrentDesktop: KDE + DistroRelease: Ubuntu 19.10 + InstallationDate: Installed on 2019-12-15 (115 days ago) + InstallationMedia: Kubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) + InterestingModules: rfcomm bnep btusb bluetooth + Lsusb: + Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub + Bus 001 Device 003: ID 0c45:671e Microdia Integrated_Webcam_HD + Bus 001 Device 002: ID 27c6:5301 HTMicroelectronics Goodix Fingerprint Device + Bus 001 Device 004: ID 0cf3:e009 Qualcomm Atheros Communications + Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + MachineType: Dell Inc. Inspiron 3583 + Package: bluez 5.50-0ubuntu5.1 [modified: lib/systemd/system/bluetooth.service lib/udev/hid2hci lib/udev/rules.d/97-hid2hci.rules] + PackageArchitecture: amd64 + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-46-generic root=UUID=dad855bd-aa2f-4675-a8a6-6fa960525f41 ro quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 5.3.0-46.38-generic 5.3.18 + Tags: eoan + Uname: Linux 5.3.0-46-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 05/30/2019 + dmi.bios.vendor: Dell Inc. + dmi.bios.version: 1.5.1 + dmi.board.name: 0WHCP7 + dmi.board.vendor: Dell Inc. + dmi.board.version: A00 + dmi.chassis.type: 10 + dmi.chassis.vendor: Dell Inc. + dmi.modalias: dmi:bvnDellInc.:bvr1.5.1:bd05/30/2019:svnDellInc.:pnInspiron3583:pvr:rvnDellInc.:rn0WHCP7:rvrA00:cvnDellInc.:ct10:cvr: + dmi.product.family: Inspiron + dmi.product.name: Inspiron 3583 + dmi.product.sku: 08CA + dmi.sys.vendor: Dell Inc. + hciconfig: + hci0: Type: Primary Bus: USB + BD Address: AC:D5:64:CC:54:D6 ACL MTU: 1024:8 SCO MTU: 50:8 + UP RUNNING PSCAN ISCAN + RX bytes:47194 acl:2390 sco:0 events:266 errors:0 + TX bytes:3046 acl:50 sco:0 commands:163 errors:0 + mtime.conffile..etc.dbus-1.system.d.bluetooth.conf: 2020-04-07T16:35:14.446062 ** Attachment added: "CurrentDmesg.txt" https://bugs.launchpad.net/bugs/1871695/+attachment/5349944/+files/CurrentDmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871695 Title: Bluetoothd uses 100% of a CPU thread To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1871695/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
