Running Kubuntu 18.10, on Lenovo Y530.
On their own, WiFi connection and Bluetooth speakers work fine. If running both, heavy interference is introduced. This first resulted in both WiFi connection dropping to less than 10% of the speed (and, in some cases, upload failing completely), and BT signal jamming/skipping heavily.
I tried setting options iwlwifi bt_coex_active=N in /etc/modprobe.d/iwlwifi.conf, which completely disabled my BT (EDIT: see below). I then set it to bt_coex_active=0 and removed Blueman (not sure if its removal was important), which solved the WiFi problems, but BT signal is still not working (still skipping heavily) if WiFi is used.
EDIT: I now tried setting it to N again, and it is exactly the same as 0. Not sure why it didn't work before.
On Windows, everything works fine. Also, everything is fine if I connect to the speakers from my phone - meaning it probably isn't the signal itself getting jammed (sadly, my router doesn't support 5GHz, so I cannot check this thoroughly). I tried changing the WiFi channels, but with no effects.
It might be the driver issue, but the same problem occurs when using a WiFi USB adapter. It might be that, although this adapter was stated as "in use" for the connection, it wasn't really used and WiFi was still going over the built-in cart - I have no idea how to check for this.
Here is the output usually requested for these problems, please ask if some more is needed. Thanks!
$ uname -a
Linux mylenovo 4.18.0-13-generic #14-Ubuntu SMP Wed Dec 5 09:04:24 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
$ sudo lshw -class network
*-network
description: Wireless interface
product: QCA9377 802.11ac Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:07:00.0
logical name: wlp7s0
version: 31
serial: 00:f4:8d:ed:2b:99
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath10k_pci driverversion=4.18.0-13-generic firmware=WLAN.TF.1.0-00002-QCATFSWPZ-5 ip=192.168.5.19 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:145 memory:a4200000-a43fffff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:08:00.0
logical name: enp8s0
version: 15
serial: e8:6a:64:49:a5:e4
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:17 ioport:3000(size=256) memory:a4504000-a4504fff memory:a4500000-a4503fff
$ lspci
00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Device 3e9b
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 07)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model
00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10)
00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10)
00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10)
00:15.0 Serial bus controller [0c80]: Intel Corporation Device a368 (rev 10)
00:15.1 Serial bus controller [0c80]: Intel Corporation Device a369 (rev 10)
00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10)
00:17.0 SATA controller: Intel Corporation Device a353 (rev 10)
00:1d.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port 9 (rev f0)
00:1d.4 PCI bridge: Intel Corporation Device a334 (rev f0)
00:1d.5 PCI bridge: Intel Corporation Device a335 (rev f0)
00:1e.0 Communication controller: Intel Corporation Device a328 (rev 10)
00:1f.0 ISA bridge: Intel Corporation Device a30d (rev 10)
00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10)
00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller (rev 10)
01:00.0 VGA compatible controller: NVIDIA Corporation GP107M [GeForce GTX 1050 Mobile] (rev a1)
06:00.0 Non-Volatile memory controller: Sandisk Corp Device 5002
07:00.0 Network controller: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter (rev 31)
08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
$ ethtool -i enp8s0
driver: r8169
version: 2.3LK-NAPI
firmware-version: rtl8168h-2_0.0.2 02/26/15
expansion-rom-version:
bus-info: 0000:08:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no