Wifi(2.4 Ghz) interference with bluetooth earphones.
mishrasatyam opened this issue · 0 comments
mishrasatyam commented
Describe the bug
I am using BCM43142A0-0a5c-21d7.hcd driver. Whenever I run wifi with bluetooth , there is constant interference in audio. When I switch off wifi everything works fine.
Provide info about your system
**uname -a**
Linux satyam-Vostro-2520 5.4.0-39-generic #43-Ubuntu SMP Fri Jun 19 10:28:31 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
**dmesg | grep -i Bluetooth**
[ 16.435151] Bluetooth: Core ver 2.22
[ 16.435173] Bluetooth: HCI device and connection manager initialized
[ 16.435178] Bluetooth: HCI socket layer initialized
[ 16.435180] Bluetooth: L2CAP socket layer initialized
[ 16.435183] Bluetooth: SCO socket layer initialized
[ 17.151470] Bluetooth: hci0: BCM: chip id 70
[ 17.152334] Bluetooth: hci0: BCM: features 0x06
[ 17.168337] Bluetooth: hci0: BCM43142A
[ 17.169329] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0000
[ 18.776533] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0341
[ 18.793487] Bluetooth: hci0: BCM43142A0 Generic USB Class 2 NonUHE @ 20 MHz
[ 32.533470] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 32.533474] Bluetooth: BNEP filters: protocol multicast
[ 32.533484] Bluetooth: BNEP socket layer initialized
[ 149.286285] Bluetooth: RFCOMM TTY layer initialized
[ 149.286297] Bluetooth: RFCOMM socket layer initialized
[ 149.286304] Bluetooth: RFCOMM ver 1.11
[ 4132.682958] Bluetooth: hci0: BCM: chip id 70
[ 4132.683808] Bluetooth: hci0: BCM: features 0x06
[ 4132.699911] Bluetooth: hci0: BCM43142A
[ 4132.700913] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0000
[ 4133.486950] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0341
[ 4133.502982] Bluetooth: hci0: BCM43142A0 Generic USB Class 2 NonUHE @ 20 MHz
[11322.311850] Bluetooth: hci0: BCM: chip id 70
[11322.312857] Bluetooth: hci0: BCM: features 0x06
[11322.328857] Bluetooth: hci0: BCM43142A
[11322.329975] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0000
[11323.119865] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0341
[11323.136021] Bluetooth: hci0: BCM43142A0 Generic USB Class 2 NonUHE @ 20 MHz
[11363.857338] Bluetooth: hci0: BCM: chip id 70
[11363.858335] Bluetooth: hci0: BCM: features 0x06
[11363.874342] Bluetooth: hci0: BCM43142A
[11363.878355] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0000
[11364.658363] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0341
[11364.674405] Bluetooth: hci0: BCM43142A0 Generic USB Class 2 NonUHE @ 20 MHz
**lspci -nnvv | grep -A12 Broadcom**
07:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Dell Wireless 1704 802.11n + BT 4.0 [1028:0016]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at f7c00000 (64-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>
Kernel driver in use: wl
Kernel modules: bcma, wl
09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 07)
Subsystem: Dell RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1028:0558]
**hciconfig -a**
hci0: Type: Primary Bus: USB
BD Address: E0:06:E6:D3:E7:E4 ACL MTU: 1021:8 SCO MTU: 64:1
DOWN
RX bytes:2678 acl:0 sco:0 events:291 errors:0
TX bytes:30022 acl:0 sco:0 commands:290 errors:0
Features: 0xff 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF
Link mode: SLAVE ACCEPT
**lsusb**
Bus 002 Device 003: ID 0bda:0138 Realtek Semiconductor Corp. RTS5138 Card Reader Controller
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 064e:812a Suyin Corp.
Bus 001 Device 003: ID 0a5c:21d7 Broadcom Corp. BCM43142 Bluetooth 4.0
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub