I have the same problem with a Logitech M337 mouse and the 4.15.0-22-lowlatency kernel on my Dell Inspiron 15 laptop.
I also with a different Logitech M337 on the 4.4.15.0-22-generic kernel on an Asus Transformer T300 Chi. Its bluetooth docking station reports zero battery, too. All three bluetooth devices reported credible power levels under their 17.10 systems they were running before upgrading to bionic. Is it a coincidence the two machines have Intel wifi/bluetooth adapters which use iwlwifi-7265D-29.ucode? I can run apport from these two machines if that would be helpful. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1769075 Title: [regression][bionic] Bluetooth keyboard battery reports 0% (in kernel 4.15 and later) Status in bluez package in Ubuntu: Invalid Status in linux package in Ubuntu: Confirmed Bug description: I've recently upgraded to 18.04 from 17.10 and after the upgrade "upower -d" reports always 0% as battery percentage of the bluetooth Logitech K810 keyboard. Which is a bit annoying since I get a KDE warning on the battery. Device: /org/freedesktop/UPower/devices/keyboard_hid_34o88o5do5eo0co2f_battery native-path: hid-34:88:5d:5e:0c:2f-battery model: Logitech K810 power supply: no updated: Fri 04 May 2018 09:20:43 AM CEST (51 seconds ago) has history: yes has statistics: yes keyboard present: yes rechargeable: yes state: unknown warning-level: none percentage: 0% icon-name: 'battery-missing-symbolic' My guess is that the issue is in the bluetooth rather in the upowerd since the reporting in the /sys/devices shows battery level of 0 --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: bnv 1714 F.... pulseaudio /dev/snd/pcmC0D0p: bnv 1714 F...m pulseaudio /dev/snd/controlC0: bnv 1714 F.... pulseaudio CurrentDesktop: KDE DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=e962613c-fc88-4740-8f0a-997838d3c2cf InstallationDate: Installed on 2017-11-02 (185 days ago) InstallationMedia: Kubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017.1) IwConfig: lo no wireless extensions. enp0s25 no wireless extensions. MachineType: Dell Inc. Precision Tower 5810 NonfreeKernelModules: nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic root=UUID=4940c5fe-b600-4f27-8586-c6ac06ccea99 ro vga=773 quiet ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-04-30 (7 days ago) UserGroups: adm cdrom dialout dip kvm lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 05/08/2017 dmi.bios.vendor: Dell Inc. dmi.bios.version: A19 dmi.board.name: 0K240Y dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 7 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA19:bd05/08/2017:svnDellInc.:pnPrecisionTower5810:pvr:rvnDellInc.:rn0K240Y:rvrA01:cvnDellInc.:ct7:cvr: dmi.product.name: Precision Tower 5810 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1769075/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp