Public bug reported:
The internal keyboard on my Lenovo Yoga Slim 7 Ultra 14IHP11 works in
GRUB but is completely unresponsive in Ubuntu 26.04 (tested on both
mainline and linux-oem-24.04d kernels).
Following a recent BIOS update via Windows, the i8042 controller successfully
probes and mounts the keyboard without the Error -5 crashes it had previously.
dmesg confirms the mount:
[ 0.503092] serio: i8042 KBD port at 0x60,0x64 irq 1
However, evtest and raw TTY terminals register zero input. The driver is
loaded, but physical keystrokes trigger no interrupts. This appears to
be an ACPI table or IRQ routing issue specific to this Meteor Lake
motherboard where IRQ 1 is not reaching the OS.
Failed workarounds:
i8042 parameters (nopnp, reset, dumbkbd, unlock)
irqpoll
noapic (causes instant bootloop)
pci=nocrs (breaks NVMe storage)
ACPI spoofing (acpi_osi="Windows 2020")
Unloading ideapad_laptop and intel_vbtn modules
60-second EC hard reset
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-15-generic 7.0.0-15.15
ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0
Uname: Linux 7.0.0-15-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: frederik 4735 F.... wireplumber
/dev/snd/seq: frederik 4724 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue May 12 16:28:38 2026
InstallationDate: Installed on 2026-05-12 (0 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
MachineType: LENOVO 83QK
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 xedrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-15-generic
root=UUID=e8997083-b546-4f9c-8043-d73207eb565c ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
i8042.nopnp i8042.reset
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/18/2026
dmi.bios.release: 1.31
dmi.bios.vendor: LENOVO
dmi.bios.version: SHCN31WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76574 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Yoga Slim 7 Ultra 14IPH11
dmi.ec.firmware.release: 1.31
dmi.modalias:
dmi:bvnLENOVO:bvrSHCN31WW:bd03/18/2026:br1.31:efr1.31:svnLENOVO:pn83QK:pvrYogaSlim7Ultra14IPH11:rvnLENOVO:rnLNVNB161216:rvrSDK0T76574WIN:cvnLENOVO:ct10:cvrYogaSlim7Ultra14IPH11:skuLENOVO_MT_83QK_BU_idea_FM_YogaSlim7Ultra14IPH11:pfaYogaSlim7Ultra14IPH11:
dmi.product.family: Yoga Slim 7 Ultra 14IPH11
dmi.product.name: 83QK
dmi.product.sku: LENOVO_MT_83QK_BU_idea_FM_Yoga Slim 7 Ultra 14IPH11
dmi.product.version: Yoga Slim 7 Ultra 14IPH11
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2152248
Title:
Internal keyboard completely dead (no IRQ 1 interrupts) on Lenovo Yoga
Slim 7 Ultra (Meteor Lake)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2152248/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
