Public bug reported:
Kernel regression on Gigabyte Z390 AORUS ULTRA with Intel Wireless-AC
9560.
Good kernel:
6.17.0-19-generic
Broken kernel:
6.17.0-20-generic
Symptoms on 6.17.0-20-generic:
- system boots
- graphics works after package repair
- Wi-Fi adapter disappears from Settings and NetworkManager
- no wireless interface is available
- Bluetooth side of the Intel 9560 is still visible
- rebooting back to 6.17.0-19-generic restores Wi-Fi immediately
Symptoms on 6.17.0-19-generic:
- Wi-Fi works normally
- lspci shows Intel Cannon Lake PCH CNVi WiFi [8086:a370]
- Kernel driver in use: iwlwifi
- firmware loads and interface appears as wlo1
Regression evidence:
- same machine
- same Ubuntu install
- Wi-Fi works on 6.17.0-19-generic
- Wi-Fi fails on 6.17.0-20-generic
Additional notes:
- 6.17.0-20-generic originally also had package/header problems during update,
which were repaired
- after repair, graphics on 6.17.0-20-generic is OK, but Wi-Fi is still missing
- previous boot log from the bad kernel shows the PCI Wi-Fi device is present
and NetworkManager loads its Wi-Fi plugin, but there are no iwlwifi
attach/firmware-load lines
- current good boot on 6.17.0-19-generic shows iwlwifi binding correctly, Intel
Wireless-AC 9560 detected, firmware loaded, and interface renamed from wlan0 to
wlo1
Please investigate as a regression between 6.17.0-19-generic and
6.17.0-20-generic affecting Intel Wireless-AC 9560 / iwlwifi on this
hardware.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.17.0-20-generic 6.17.0-20.20~24.04.1
ProcVersionSignature: Ubuntu 6.17.0-19.19~24.04.2-generic 6.17.13
Uname: Linux 6.17.0-19-generic x86_64
NonfreeKernelModules: zfs nvidia_modeset nvidia
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: len 2268 F.... wireplumber
/dev/snd/controlC1: len 2268 F.... wireplumber
/dev/snd/seq: len 2263 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sat Apr 4 11:22:15 2026
InstallationDate: Installed on 2025-02-16 (411 days ago)
InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64
(20240827.1)
MachineType: Gigabyte Technology Co., Ltd. Z390 AORUS ULTRA
ProcFB: 0 nvidia-drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-19-generic
root=UUID=acc6b97c-e1d5-4109-b969-61bbd990b0fa ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-6.17.0-19-generic N/A
linux-backports-modules-6.17.0-19-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.25
SourcePackage: linux-hwe-6.17
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/18/2019
dmi.bios.release: 5.13
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F10b
dmi.board.asset.tag: Default string
dmi.board.name: Z390 AORUS ULTRA-CF
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrF10b:bd12/18/2019:br5.13:svnGigabyteTechnologyCo.,Ltd.:pnZ390AORUSULTRA:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnZ390AORUSULTRA-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:skuDefaultstring:
dmi.product.family: Default string
dmi.product.name: Z390 AORUS ULTRA
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
** Affects: linux-hwe-6.17 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
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https://bugs.launchpad.net/bugs/2147231
Title:
.Kernel regression on Gigabyte Z390 AORUS ULTRA with Intel Wireless-AC
9560. Good kernel: 6.17.0-19-generic Broken kernel:
6.17.0-20-generic
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