The 5.13.0-20 kernel works on this XPS 13 9310, but you may have to disable/ enable the device in BIOS (Connectivity -> WLAN and UEFI WiFi stack) before it appears again. Also possible that full power cycle does the job but haven't tried that yet. The exact sequence of steps required to reproduce this remains unknown to me but it looks like the failed attempt to load the device driver in the -21 kernel sends the system into a state that requires some BIOS activity.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1950515 Title: WiFi Killer AX500s DBS stopped working in kernel 5.13.0-21-generic on Dell XPS 13 9310 and others Status in linux package in Ubuntu: Confirmed Bug description: In the 5.13.0-21 kernel, the device fails: $ lshw -c network *-network description: Network controller product: QCA6390 Wireless Network Adapter [AX500-DBS (2x2)] vendor: Qualcomm physical id: 0 bus info: pci@0000:72:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=ath11k_pci latency=0 resources: irq:182 memory:a2500000-a25fffff $ lspci | grep Qualcomm 72:00.0 Network controller: Qualcomm QCA6390 Wireless Network Adapter [AX500-DBS (2x2)] (rev 01) $ sudo modprobe ath11k_pci $ sudo dmesg | grep ath [ 4.611544] ath11k_pci 0000:72:00.0: BAR 0: assigned [mem 0xa2500000-0xa25fffff 64bit] [ 4.611573] ath11k_pci 0000:72:00.0: enabling device (0000 -> 0002) [ 4.612103] ath11k_pci 0000:72:00.0: qca6390 hw2.0 [ 10.337672] ath11k_pci 0000:72:00.0: failed to register fw indication: -110 [ 10.337692] ath11k_pci 0000:72:00.0: failed to send qmi firmware indication: -110 [ 39.931711] ath11k_pci 0000:72:00.0: link down error during global reset [ 45.574642] ath11k_pci 0000:72:00.0: BAR 0: assigned [mem 0xa2500000-0xa25fffff 64bit] [ 45.575668] ath11k_pci 0000:72:00.0: qca6390 hw2.0 [ 45.630047] ath11k_pci 0000:72:00.0: failed to set pcie link register 0x01e0c0ac: 0xffffffff != 0x00000010 [ 45.630054] ath11k_pci 0000:72:00.0: failed to set sysclk: -110 [ 45.650253] ath11k_pci 0000:72:00.0: link down error during global reset $ rfkill list all 0: hci0: Bluetooth Soft blocked: no Hard blocked: no In the 5.13.0-20 kernel, the device works: $ sudo dmesg | grep ath [ 4.804410] ath11k_pci 0000:72:00.0: BAR 0: assigned [mem 0xa2500000-0xa25fffff 64bit] [ 4.804440] ath11k_pci 0000:72:00.0: enabling device (0000 -> 0002) [ 4.808036] ath11k_pci 0000:72:00.0: qca6390 hw2.0 [ 5.085678] ath11k_pci 0000:72:00.0: chip_id 0x0 chip_family 0xb board_id 0xff soc_id 0xffffffff [ 5.085684] ath11k_pci 0000:72:00.0: fw_version 0x101c06cc fw_build_timestamp 2020-06-24 19:50 fw_build_id [ 5.258202] ath11k_pci 0000:72:00.0 wlp114s0: renamed from wlan0 [ 351.080712] ath11k_pci 0000:72:00.0: link down error during global reset [ 356.511270] ath11k_pci 0000:72:00.0: BAR 0: assigned [mem 0xa2500000-0xa25fffff 64bit] [ 356.512356] ath11k_pci 0000:72:00.0: qca6390 hw2.0 ProblemType: Bug DistroRelease: Ubuntu 21.10 Package: linux-image-5.13.0-21-generic 5.13.0-21.21 ProcVersionSignature: Ubuntu 5.13.0-21.21-generic 5.13.18 Uname: Linux 5.13.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu71 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Wed Nov 10 15:23:07 2021 DistributionChannelDescriptor: # This is the distribution channel descriptor for the OEM CDs # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-focal-amd64-20200502-85 InstallationDate: Installed on 2021-05-04 (190 days ago) InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20200502-05:58 MachineType: Dell Inc. XPS 13 9310 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-21-generic root=UUID=676fbdd4-8566-4457-8530-0f412d28b48f ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.13.0-21-generic N/A linux-backports-modules-5.13.0-21-generic N/A linux-firmware 1.201.1 SourcePackage: linux UpgradeStatus: Upgraded to impish on 2021-10-19 (22 days ago) dmi.bios.date: 09/30/2021 dmi.bios.release: 3.2 dmi.bios.vendor: Dell Inc. dmi.bios.version: 3.2.0 dmi.board.name: 0MRT12 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr3.2.0:bd09/30/2021:br3.2:svnDellInc.:pnXPS139310:pvr:rvnDellInc.:rn0MRT12:rvrA00:cvnDellInc.:ct10:cvr:sku0991: dmi.product.family: XPS dmi.product.name: XPS 13 9310 dmi.product.sku: 0991 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1950515/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
