[Bug 2060868] Re: Lenovo X13s fails to boot on 6.8.0-20-generic and 6.8.0-22-generic

The problem is that on upgrade to Noble the package linux-image-laptop
is removed which contains config settings for the machine. I'm in the
process of creating a new package (ubuntu-x13s-settings) for Noble that
provide these settings. Can you try to install ubuntu-x13s-settings from
PPA:ubuntu-concept/x13s (https://launchpad.net/~ubuntu-
concept/+archive/ubuntu/x13s) and report back?

One of the issues is that ARM pointer authentication is not working
(broken Lenovo firmware) and needs to be disabled for the 6.8 kernel
(arm64.nopauth kernel commandline option). The above package should set
that (amongst other things).

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https://bugs.launchpad.net/bugs/2060868

Title:
Lenovo X13s fails to boot on 6.8.0-20-generic and 6.8.0-22-generic

Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Noble:
Confirmed

Bug description:
The last kernel that successfully boots on my Lenovo X13s system is
6.5.0-1004-laptop.

With 6.8.0-20-generic no output whatsoever is shown.
---
ProblemType: Bug
ApportVersion: 2.28.0-0ubuntu1
Architecture: arm64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/seq: zfsdt 2886 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 24.04
InstallationDate: Installed on 2023-12-12 (120 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily arm64+x13s (20231212)
Lspci-vt:
-[0002:00]---00.0-[01-ff]----00.0 KIOXIA Corporation NVMe SSD Controller BG5 (DRAM-less)
-[0004:00]---00.0-[01-ff]----00.0 Foxconn International, Inc. T99W175 5G Modem [Snapdragon X55]
-[0006:00]---00.0-[01-ff]----00.0 Qualcomm Technologies, Inc QCNFA765 Wireless Network Adapter
MachineType: LENOVO 21BXCTO1WW
Package: linux (not installed)
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
ProcFB: 0 msmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.5.0-1004-laptop root=UUID=7695b3a4-a033-451f-ba6b-56e81a873b79 ro quiet splash clk_ignore_unused pd_ignore_unused vt.handoff=7
ProcVersionSignature: Ubuntu 6.5.0-1004.7-laptop 6.5.3
RelatedPackageVersions:
linux-restricted-modules-6.5.0-1004-laptop N/A
linux-backports-modules-6.5.0-1004-laptop N/A
linux-firmware 20240318.git3b128b60-0ubuntu2
Tags: noble
Uname: Linux 6.5.0-1004-laptop aarch64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
acpidump:

dmi.bios.date: 12/05/2023
dmi.bios.release: 1.59
dmi.bios.vendor: LENOVO
dmi.bios.version: N3HET87W (1.59 )
dmi.board.asset.tag: Not Available
dmi.board.name: 21BXCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version:
SDK0T76463 WIN
ptal����8
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.23
dmi.modalias: dmi:bvnLENOVO:bvrN3HET87W(1.59):bd12/05/2023:br1.59:efr1.23:svnLENOVO:pn21BXCTO1WW:pvrThinkPadX13sGen1:rvnLENOVO:rn21BXCTO1WW:rvrSDK0T76463WINptal8:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21BX_BU_Think_FM_ThinkPadX13sGen1:
dmi.product.family: ThinkPad X13s Gen 1
dmi.product.name: 21BXCTO1WW
dmi.product.sku: LENOVO_MT_21BX_BU_Think_FM_ThinkPad X13s Gen 1
dmi.product.version: ThinkPad X13s Gen 1
dmi.sys.vendor: LENOVO

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