Public bug reported:
Hardware: ASUS NUC 15 (DSDT: NUC15CR), BIOS CRARL579.0032.2026.0704.0118
(latest)
NIC: 56:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller
I226-V [8086:125c] (rev 04)
, driver igc, interface enp86s0
Kernel: 7.0.0-30-generic (Kubuntu 26.04)
Problem:
Wake-on-LAN (magic packet) does not wake the system from poweroff (S5),
s2idle or deep (S3) when running Kubuntu. The same hardware wakes
correctly from poweroff when running a Fedora live system.
Test results (same machine, same BIOS settings, same sender):
- Power cut, then AC restored without booting an OS -> magic packet
wakes the machine (firmware/BIOS WoL works)
- Fedora KDE live, kernel 6.19.10-300, "ethtool -s <if> wol g",
poweroff -> magic packet wakes the machine
- Kubuntu 26.04 (7.0.0-30-generic), poweroff / s2idle / deep -> no wake
- Kubuntu 24.04 live, poweroff -> no wake
So this is not a kernel version regression (Fedora's 6.19 works,
Ubuntu kernels both older and newer fail). It looks specific to the
Ubuntu kernel (config or patches) or to the Ubuntu shutdown path.
Verified on Kubuntu 26.04:
- ethtool: "Supports Wake-on: pumbg", "Wake-on: g"
- NetworkManager: 802-3-ethernet.wake-on-lan = magic
- /sys/class/net/enp86s0/device/power/wakeup = enabled
- /proc/acpi/wakeup: RP05 (0000:00:1c.0) and PXSX (0000:56:00.0) enabled
- TLP not installed
- Magic packet (102 bytes, UDP broadcast port 9) arrives at the NIC
(confirmed with tcpdump)
- BIOS: WoL from S4/S5 = Power On, ErP disabled
Workarounds tried without success:
- systemd unit running "ethtool -s enp86s0 wol g" right before poweroff
- system-shutdown hook unbinding igc from 0000:56:00.0 before poweroff
- additionally resetting the PCI device via sysfs before poweroff
Possibly related, on every resume:
igc 0000:56:00.0 enp86s0: Timeout reading IGC_PTM_STAT register
Expected: the machine wakes on magic packet after poweroff/suspend,
as it does with Fedora on identical hardware.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-38-generic 7.0.0-38.38
ProcVersionSignature: Ubuntu 7.0.0-38.38-generic 7.0.14
Uname: Linux 7.0.0-38-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sat Oct 17 08:12:39 2026
InstallationDate: Installed on 2026-10-13 (4 days ago)
InstallationMedia: Kubuntu 26.04.1 LTS "Resolute Raccoon" - Release amd64
(20260826.1)
IwDevWlo1Link: Not connected.
MachineType: ASUSTeK COMPUTER INC. NUC15CRHU5
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-38-generic
root=UUID=b29c8153-e4da-4d83-99a0-13d0fe2d47f6 ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/04/2026
dmi.bios.release: 5.32
dmi.bios.vendor: ASUSTeK COMPUTER INC.
dmi.bios.version: CRARL579.0032.2026.0704.0118
dmi.board.name: NUC15CRBU5
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 60AS00K0-MBJA03
dmi.chassis.type: 35
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 2.0
dmi.ec.firmware.release: 2.12
dmi.modalias:
dmi:bvnASUSTeKCOMPUTERINC.:bvrCRARL579.0032.2026.0704.0118:bd07/04/2026:br5.32:efr2.12:svnASUSTeKCOMPUTERINC.:pnNUC15CRHU5:pvr90AR00Q2-M00050:rvnASUSTeKCOMPUTERINC.:rnNUC15CRBU5:rvr60AS00K0-MBJA03:cvnASUSTeKCOMPUTERINC.:ct35:cvr2.0:skuRNUC15CRHU500002:pfaCR:
dmi.product.family: CR
dmi.product.name: NUC15CRHU5
dmi.product.sku: RNUC15CRHU500002
dmi.product.version: 90AR00Q2-M00050
dmi.sys.vendor: ASUSTeK COMPUTER INC.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2171282
Title:
Wake-on-LAN does not work after shutdown or suspend on ASUS NUC 15
(igc), works with Fedora on same hardware
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