Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.16 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.16-rc4 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1753439 Title: Redpine: BLE scanning for nearby beacons per second is too low and result high loss rate. Status in linux package in Ubuntu: Incomplete Bug description: Steps to replicate the issue: 1. Power on the BT device, then change the terminal by "Ctil+F1" or open another putty to ssh SUT. 2.Use command below to discover BLE device. $ sudo stdbuf -i0-o0 -e0 /snap/bluez/current/usr/bin/hcitool lescan --duplicates --passive | perl -nle 'print scalar(localtime), " ",$_' 3. log as attachment. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1753439/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

