Wifi worked for me in the past with Ubuntu 20.04, but now I realised that it ceased working.
uname -r gives me: 5.11.0-40-generic
sudo lshw -c network
*-network
description: Network controller
product: Qualcomm
vendor: Qualcomm
physical id: 0
bus info: pci@0000:04:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=ath11k_pci latency=0
resources: irq:195 memory:d2100000-d21fffff
*-network:0
description: Ethernet interface
physical id: 3
bus info: usb@8:2.1.4
logical name: enx00249b1063be
serial: 00:24:9b:10:63:be
size: 10Mbit/s
capacity: 1Gbit/s
capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=ax88179_178a driverversion=5.11.0-40-generic duplex=half link=no multicast=yes port=MII speed=10Mbit/s
*-network:1
description: Ethernet interface
physical id: 4
bus info: usb@8:2.1.2.1
logical name: enx0023566c8708
serial: 00:23:56:6c:87:08
size: 100Mbit/s
capacity: 1Gbit/s
capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=ax88179_178a driverversion=5.11.0-40-generic duplex=full ip=192.168.178.22 link=yes multicast=yes port=MII speed=100Mbit/s
lspci | grep Qualcomm
04:00.0 Network controller: Qualcomm Device 1101 (rev 01)
sudo modprobe ath11k_pci (nothing)
sudo dmesg | grep ath
[ 3.989219] ath11k_pci 0000:04:00.0: WARNING: ath11k PCI support is experimental!
[ 3.989261] ath11k_pci 0000:04:00.0: BAR 0: assigned [mem 0xd2100000-0xd21fffff 64bit]
[ 3.989283] ath11k_pci 0000:04:00.0: enabling device (0000 -> 0002)
[ 9.378984] ath11k_pci 0000:04:00.0: failed to register fw indication -110
[ 9.378994] ath11k_pci 0000:04:00.0: qmi failed to send FW indication QMI:-110
[ 36.071947] audit: type=1107 audit(1637394593.677:57): pid=980 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.13" pid=2275 label="snap.snap-store.ubuntu-software" peer_pid=1004 peer_label="unconfined"
[ 36.072157] audit: type=1107 audit(1637394593.677:58): pid=980 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.PolicyKit1.Authority" member="CheckAuthorization" mask="send" name=":1.13" pid=2275 label="snap.snap-store.ubuntu-software" peer_pid=1004 peer_label="unconfined"
[ 36.083139] audit: type=1107 audit(1637394593.689:59): pid=980 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.13" pid=2275 label="snap.snap-store.ubuntu-software" peer_pid=1004 peer_label="unconfined"
[ 36.083304] audit: type=1107 audit(1637394593.689:60): pid=980 uid=103 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.PolicyKit1.Authority" member="CheckAuthorization" mask="send" name=":1.13" pid=2275 label="snap.snap-store.ubuntu-software" peer_pid=1004 peer_label="unconfined"
rfkill list all
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: chris 1775 F.... pulseaudio
/dev/snd/controlC0: chris 1775 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-07-14 (128 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
IwConfig:
lo no wireless extensions.
enx00249b1063be no wireless extensions.
enx0023566c8708 no wireless extensions.
MachineType: Dell Inc. XPS 17 9700
NonfreeKernelModules: nvidia_modeset nvidia
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-40-generic root=UUID=a74d5478-f26a-4529-b9f1-26cb804b6081 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.11.0-40.44~20.04.2-generic 5.11.22
RelatedPackageVersions:
linux-restricted-modules-5.11.0-40-generic N/A
linux-backports-modules-5.11.0-40-generic N/A
linux-firmware 1.187.20
RfKill:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
Tags: focal
Uname: Linux 5.11.0-40-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip docker lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/21/2021
dmi.bios.release: 1.8
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.8.2
dmi.board.name: 03CPGC
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.8.2:bd05/21/2021:br1.8:svnDellInc.:pnXPS179700:pvr:sku098F:rvnDellInc.:rn03CPGC:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 17 9700
dmi.product.sku: 098F
dmi.sys.vendor: Dell Inc.
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1951672
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.