Bluetooth headsets are noisy

volker_weissmann · 2020-08-13 21:29:00

Hello,

I have a bluetooth headset (Bose QC35) that works fine on one Arch Linux laptop, but there is an issue if I use it on my desktop: If I play sound, there is a constant noise in the headphones, independent of the sound volume. It does not appear if I use my Laptop.
And yes, I'm using A2DP.

ewaller · 2020-08-14 01:13:01

We assume that the desktop is running Arch Linux, and is the same kernel and desktop environment. Can you verify that?

Are the Bluetooth subsystems identical?

volker_weissmann · 2020-08-14 16:03:25

ewaller wrote:

We assume that the desktop is running Arch Linux, and is the same kernel and desktop environment. Can you verify that?
Are the Bluetooth subsystems identical?

Both run Arch Linux, gnome and the newest kernel (but the problem is not new, I had the same issue with older kernels).

What do you mean with Bluetooth subsystem? bluez is installed on both machines.

ewaller · 2020-08-14 16:15:34

What bluetooth chipset are you using on each machine? Post the output of lspci and of lsusb on each?

volker_weissmann · 2020-08-14 16:33:42

ewaller wrote:

What bluetooth chipset are you using on each machine? Post the output of lspci and of lsusb on each?

Bad desktop:

$ lspci
00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
00:14.0 USB controller: Intel Corporation 9 Series Chipset Family USB xHCI Controller
00:16.0 Communication controller: Intel Corporation 9 Series Chipset Family ME Interface #1
00:1a.0 USB controller: Intel Corporation 9 Series Chipset Family USB EHCI Controller #2
00:1b.0 Audio device: Intel Corporation 9 Series Chipset Family HD Audio Controller
00:1c.0 PCI bridge: Intel Corporation 9 Series Chipset Family PCI Express Root Port 1 (rev d0)
00:1c.2 PCI bridge: Intel Corporation 9 Series Chipset Family PCI Express Root Port 3 (rev d0)
00:1c.3 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d0)
00:1d.0 USB controller: Intel Corporation 9 Series Chipset Family USB EHCI Controller #1
00:1f.0 ISA bridge: Intel Corporation Z97 Chipset LPC Controller
00:1f.2 SATA controller: Intel Corporation 9 Series Chipset Family SATA Controller [AHCI Mode]
00:1f.3 SMBus: Intel Corporation 9 Series Chipset Family SMBus Controller
01:00.0 VGA compatible controller: NVIDIA Corporation GP106 [GeForce GTX 1060 6GB] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GP106 High Definition Audio Controller (rev a1)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
04:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 03)
05:01.0 Network controller: Qualcomm Atheros AR9227 Wireless Network Adapter (rev 01)

$ lsusb
Bus 003 Device 002: ID 8087:8001 Intel Corp. Integrated Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8009 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 004: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 002 Device 003: ID 046d:c05a Logitech, Inc. M90/M100 Optical Mouse
Bus 002 Device 005: ID 045e:02ea Microsoft Corp. Xbox One S Controller
Bus 002 Device 002: ID 0461:0010 Primax Electronics, Ltd HP PR1101U / Primax PMX-KPR1101U Keyboard
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Good laptop:

$ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th
Gen Core Processor Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation Skylake GT2 [HD
Graphics 520] (rev 07)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 /
E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
00:13.0 Non-VGA unclassified device: Intel Corporation Sunrise Point-LP
Integrated Sensor Hub (rev 21)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI
Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP
Thermal subsystem (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP
CSME HECI #1 (rev 21)
00:16.3 Serial controller: Intel Corporation Sunrise Point-LP Active
Management Technology - SOL (rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA
Controller [AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root
Port #4 (rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root
Port #6 (rev f1)
00:1e.0 Signal processing controller: Intel Corporation Sunrise Point-LP
Serial IO UART Controller #0 (rev 21)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller
(rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection
I219-LM (rev 21)
02:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller
(rev 01)
03:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)

$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 138a:0017 Validity Sensors, Inc. VFS 5011
fingerprint sensor
Bus 001 Device 016: ID 8087:0a2b Intel Corp. Bluetooth wireless interface
Bus 001 Device 004: ID 056a:504a Wacom Co., Ltd Pen and multitouch sensor
Bus 001 Device 019: ID 12d1:15c1 Huawei Technologies Co., Ltd. ME906s
LTE M.2 Module
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

ewaller · 2020-08-14 16:38:47

So, the "Good" one is an Intel USB device, and the "Bad" one is a Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) device.

Are these internal or external? I get the impression the laptop is internal, but the desktop is external. If so, you might try the Cambridge Silicon Radio dongle on the laptop and see if the problem follows it.

volker_weissmann · 2020-08-14 17:05:07

ewaller wrote:

So, the "Good" one is an Intel USB device, and the "Bad" one is a Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) device.
Are these internal or external? I get the impression the laptop is internal, but the desktop is external. If so, you might try the Cambridge Silicon Radio dongle on the laptop and see if the problem follows it.

Your impression is right. I took the externel BT adapter from the desktop and plugged it in the laptop. The problem did not appear on the laptop. I then again plugged the external adapter in my desktop and re-paired it. The problem did not reappear on my desktop. I have absolutely no idea why.

Last edited by volker_weissmann (2020-08-14 17:05:33)

V1del · 2020-08-14 20:09:16

USB devices can occasionally have weird power issues that can be resolved by power cycling (as in actually unplugging), have had that happen a few times with usb headphones, never really found out why and it was rare enough that I didn't investigate further.

Arch Linux

#1 2020-08-13 21:29:00

Bluetooth headsets are noisy

#2 2020-08-14 01:13:01

Re: Bluetooth headsets are noisy

#3 2020-08-14 16:03:25

Re: Bluetooth headsets are noisy

#4 2020-08-14 16:15:34

Re: Bluetooth headsets are noisy

#5 2020-08-14 16:33:42

Re: Bluetooth headsets are noisy

#6 2020-08-14 16:38:47

Re: Bluetooth headsets are noisy

#7 2020-08-14 17:05:07

Re: Bluetooth headsets are noisy

#8 2020-08-14 20:09:16

Re: Bluetooth headsets are noisy

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