[Internet] Focal fossa - Will bluetooth/WIFI work together?

[leoneiva]

A lot of people have that issue with a lot of distribution(Not only Kubuntu).
When connecting to bluetooth the wifi doesn't work. Keep connected but "0 Bps" or very slow.

But the KDE NEON has the best result.
The interference is weak and both can work together.

Could check it for focal fossa?

I think bt_coex_active could be a clue.
I cant change it. It is aways off on the kernell config.

My wifi is 2.4Ghz

Thanks!!!

=======================================
See KDE NEON kernel config:
Terminal commands
ls /boot/config-* OR cat /boot/config-`uname -r`

https://pastebin.com/UHk1ikR3

------------------------------------------------------------------------------------------------------------------------------
MACHINE:

*-network
descrição: Interface wireless
produto: QCA9377 802.11ac Wireless Network Adapter
fabricante: Qualcomm Atheros
ID físico: 0
informações do barramento: pci@0000:02:00.0
nome lógico: wlp2s0
versão: 31
serial:
largura: 64 bits
clock: 33MHz
capacidades: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuração: broadcast=yes driver=ath10k_pci driverversion=5.3.0-45-generic firmware=WLAN.TF.2.1-00021-QCARMSWP-1 ip=192.168.1.100 latency=0 link=yes multicast=yes wireless=IEEE 802.11
recursos: irq:129 memória:b1000000-b11fffff
------------------------------------------------------------------------------------------------------------------------------
BLUETOOTH
sudo service bluetooth status
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2020-03-31 10:55:56 -03; 7h ago
Docs: man:bluetoothd(8)
Main PID: 779 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 4915)
CGroup: /system.slice/bluetooth.service
└─779 /usr/lib/bluetooth/bluetoothd

mar 31 12:39:51 leonardo-ideapad-330-15IKB bluetoothd[779]: Failed to set mode: Blocked through rfkill (0x12)
mar 31 12:39:51 leonardo-ideapad-330-15IKB bluetoothd[779]: Endpoint registered: sender=:1.45 path=/MediaEndpoint/A2DPSource
mar 31 12:39:51 leonardo-ideapad-330-15IKB bluetoothd[779]: Endpoint registered: sender=:1.45 path=/MediaEndpoint/A2DPSink
mar 31 17:08:28 leonardo-ideapad-330-15IKB bluetoothd[779]: Endpoint unregistered: sender=:1.45 path=/MediaEndpoint/A2DPSource
mar 31 17:08:28 leonardo-ideapad-330-15IKB bluetoothd[779]: Endpoint unregistered: sender=:1.45 path=/MediaEndpoint/A2DPSink
mar 31 17:08:28 leonardo-ideapad-330-15IKB bluetoothd[779]: Failed to set mode: Blocked through rfkill (0x12)
mar 31 17:08:28 leonardo-ideapad-330-15IKB bluetoothd[779]: Endpoint registered: sender=:1.45 path=/MediaEndpoint/A2DPSource
mar 31 17:08:28 leonardo-ideapad-330-15IKB bluetoothd[779]: Endpoint registered: sender=:1.45 path=/MediaEndpoint/A2DPSink
mar 31 17:18:52 leonardo-ideapad-330-15IKB bluetoothd[779]: /org/bluez/hci0/dev_FC_78_96_6B_56_6A/fd0: fd(36) ready
mar 31 18:21:28 leonardo-ideapad-330-15IKB bluetoothd[779]: /org/bluez/hci0/dev_FC_78_96_6B_56_6A/fd1: fd(35) ready
=======================================
rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
5: hci0: Bluetooth
Soft blocked: no
Hard blocked: no

[Don B. Cilly]

Why not get a daily build of 20.04, put it on a USB stick and check it yourself?

[GreyGeek]

Testing a LiveUSB is the best way.
A second way is to lsmod and check to see what driver is being used for your wifi chip. Mine is the ath9k driver.
Then do

modinfo ath9k

but use your driver, not mine.
In the list of "parm"'s you may see one or more related to allowing bt to work with the wifi:

parm: btcoex_enable:Enable wifi-BT coexistence (int)
parm: bt_ant_diversity:Enable WLAN/BT RX antenna diversity (int)

If your list of parms does not contain any bluetooth settings then your wifi chip may not be compatible with bluetooth.