** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1991437
Title:
Keyboard inoperative on Lenovo Yoga 7 Gen 7 (AMD Ryzen 6800u)
Status in linux package in Ubuntu:
Confirmed
Bug description:
[Impact]
* The builtin keyboard on the Lenovo Yoga 7 Gen 7 doesn't work on
linux 5.19.0.15-generic (ubuntu-22.10-beta-desktop-amd64.iso; same
problem exists in 5.15.0-43-generic of ubuntu-22.04.1-desktop-
amd64.iso)
[Fix]
9946e39fe8d0a5da9eb947d8e40a7ef204ba016e ACPI: resource: skip IRQ override on
AMD Zen platforms
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.19.y&id=37c81d9f1d1b1458894454efcb857f6a769b6bc4
> IRQ override isn't needed on modern AMD Zen systems.
> There's an active low keyboard IRQ on AMD Ryzen 6000 and it will stay
> this way on newer platforms. This IRQ override breaks keyboards for
> almost all Ryzen 6000 laptops currently on the market.
> Skip this IRQ override for all AMD Zen platforms because this IRQ
> override is supposed to be a workaround for buggy ACPI DSDT and we can't
> have a long list of all future AMD CPUs/Laptops in the kernel code.
> If a device with buggy ACPI DSDT shows up, a separated list containing
> just them should be created.
The fix is in Linux 5.19.10.
[Other Info]
The keyboard worked when using a linux kernel 5.19.10 (in debian testing). I
tried to patch the kernel on the ubuntu live CD
ubuntu-22.04.1-desktop-amd64.iso, but the live filesystem could not be mounted
and I only got the busybox environment. The keyboard was working though.
---
ProblemType: Bug
ApportVersion: 2.23.0-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: ubuntu 2048 F.... wireplumber
/dev/snd/controlC0: ubuntu 2048 F.... wireplumber
/dev/snd/seq: ubuntu 2045 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CasperVersion: 1.475
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 22.10
LiveMediaBuild: Ubuntu 22.10 "Kinetic Kudu" - Beta amd64 (20220927.1)
MachineType: LENOVO 82QF
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
Package: linux (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz
file=/cdrom/preseed/username.seed maybe-ubiquity quiet splash ---
ProcVersionSignature: Ubuntu 5.19.0-15.15-generic 5.19.0
RelatedPackageVersions:
linux-restricted-modules-5.19.0-15-generic N/A
linux-backports-modules-5.19.0-15-generic N/A
linux-firmware 20220923.gitf09bebf3-0ubuntu1
Tags: kinetic
Uname: Linux 5.19.0-15-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 07/28/2022
dmi.bios.release: 1.31
dmi.bios.vendor: LENOVO
dmi.bios.version: K5CN31WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76461 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 31
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Yoga 7 14ARB7
dmi.ec.firmware.release: 1.31
dmi.modalias:
dmi:bvnLENOVO:bvrK5CN31WW:bd07/28/2022:br1.31:efr1.31:svnLENOVO:pn82QF:pvrYoga714ARB7:rvnLENOVO:rnLNVNB161216:rvrSDK0T76461WIN:cvnLENOVO:ct31:cvrYoga714ARB7:skuLENOVO_MT_82QF_BU_idea_FM_Yoga714ARB7:
dmi.product.family: Yoga 7 14ARB7
dmi.product.name: 82QF
dmi.product.sku: LENOVO_MT_82QF_BU_idea_FM_Yoga 7 14ARB7
dmi.product.version: Yoga 7 14ARB7
dmi.sys.vendor: LENOVO
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