my WiFi adapter Qualcomm Atheros QCA9565/AR9565 Wireless Network Adapter.doesn't work or even appear in the system settings.I'm using ubuntu 18.04 with a dual boot with windows 10.the WiFi adapter works in windows.
output of lspci -knn | grep Net -A3:
03:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01)
Subsystem: Lite-On Communications Inc QCA9565 / AR9565 Wireless Network Adapter [11ad:0803]
Kernel modules: ath9k
lspci -knn | grep Net -A2
03:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01)
Subsystem: Lite-On Communications Inc QCA9565 / AR9565 Wireless Network Adapter [11ad:0803]
Kernel modules: ath9k
sudo rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
sudo lshw -C network
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: enp2s0
version: 15
serial: 1c:39:47:53:6c:4b
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:-2147483648 ioport:3000(size=256) memory:c1104000-c1104fff memory:c1100000-c1103fff
*-network UNCLAIMED
description: Network controller
product: QCA9565 / AR9565 Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:03:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress cap_list
configuration: latency=0
resources: memory:c1000000-c107ffff memory:c1080000-c108ffff
*-network
description: Ethernet interface
physical id: 1
logical name: enp0s20u1
serial: 76:f5:dc:14:1d:16
capabilities: ethernet physical
configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.239 link=yes multicast=yes
dmesg | grep ath9k
[ 21.252360] ath9k 0000:03:00.0: PCI INT A: not connected
[ 21.252404] ath9k 0000:03:00.0: request_irq failed
[ 21.252423] ath9k: probe of 0000:03:00.0 failed with error -107
Best Answer
Pay you attention command
lspci -knn | grep Net -A2
output contains no lineKernel driver in use
. Just doNext check the wireless module for soft and hard block
As your laptop is Acer, try
Reboot the laptop and try
lspci -knn | grep Net -A2
andsudo rfkill list
again.If nothing helps try No Wifi on Acer Aspire E5 573 on any Linux Platform.
And finally try solution from post #22 from here.
ADDENDUM
Do
Reboot laptop.
ADDENDUM #2
Try
Reboot laptop.