I have disabled Wi-Fi and tested a buffered video in Chrome on Youtube
(which is where I stream my music mostly from, though the stuttering and
lag was present in all other applications too), and there seems to be
almost no lagging or clicking at all. There was a lag of perhaps 100 ms
only, but nothing substantial and also not near as frequent as with Wi-
Fi on. I then tested again with Wi-Fi on, and it is stuttering again.
On my system, I use an Intel 6205 Wi-Fi card, but this card does not
have bluetooth on the same card. As seen above, my T430 has a build in
bluetooth USB device (Broadcom BCM20702). Because of this, any online
solutions about Wifi/Bt coexistance may not apply, and I have even tried
them to no effect (Adding modprobe options to enable coexistance on or
off in the iwlwifi driver)
Many thanks for looking into it.
My rfkill list output when wifi was disabled (software switch, not
hardware)
penguin@thinkpadT430 ~ $ rfkill list
0: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
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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/1825639
Title:
Pulseaudio skips some time in the audio buffer, causing a bluetooth
delay and crackling/clicking sound. [Broadcom Corp. BCM20702 Bluetooth
4.0]
Status in bluez package in Ubuntu:
Incomplete
Bug description:
This is the same problem in
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/405294 and
even though I have pulseaudio 12.2 (on Xubuntu 18.10), this problem
persists (this T430 laptop has inbuilt Bluetooth).
This makes listening to music or any audio over Bluetooth almost
unbearable - while it is temporarily fixed by running `pactl suspend-
sink 1 && pactl suspend-sink 0` it soon returns. I have even updated
the BIOS but the problem persists.
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: bluez 5.50-0ubuntu1
ProcVersionSignature: Ubuntu 4.18.0-11.12-generic 4.18.12
Uname: Linux 4.18.0-11-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.10-0ubuntu13.2
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat Apr 20 13:10:59 2019
InstallationDate: Installed on 2018-11-26 (144 days ago)
InstallationMedia: Xubuntu 18.10 "Cosmic Cuttlefish" - Release amd64
(20181017.2)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: LENOVO 2349G4G
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-11-generic
root=UUID=0e4c79dc-6836-4dcb-a54a-2c5842e1f6c1 ro quiet splash vt.handoff=1
SourcePackage: bluez
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/19/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: G1ETB9WW (2.79 )
dmi.board.asset.tag: Not Available
dmi.board.name: 2349G4G
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrG1ETB9WW(2.79):bd02/19/2019:svnLENOVO:pn2349G4G:pvrThinkPadT430:rvnLENOVO:rn2349G4G:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.family: ThinkPad T430
dmi.product.name: 2349G4G
dmi.product.sku: LENOVO_MT_2349
dmi.product.version: ThinkPad T430
dmi.sys.vendor: LENOVO
hciconfig:
hci0: Type: Primary Bus: USB
BD Address: 24:FD:52:8C:5D:82 ACL MTU: 1021:8 SCO MTU: 64:1
UP RUNNING PSCAN
RX bytes:65823 acl:64 sco:0 events:9052 errors:0
TX bytes:15368368 acl:17880 sco:0 commands:101 errors:0
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