Public bug reported:

I have a Lenovo ThinkPad T14 Gen 3. I got it last fall and installed
Ubuntu 23.10 the day after 23.10 was released. After a couple weeks of
issues while 23.10 stabilized, it worked pretty much fine.

Sometime in April of this year, my device/OS combo which had been
working suddenly developed a problem. Suddenly I began seeing a problem
where when I closed the lid to sleep the machine, waited a while, and
then opened the screen again, the screen would be black and the unit
would be totally nonresponsive. When the device is in this state, the
red LED on the back in the "THINK" logo stays at a fixed value rather
than pulsating as it normally does during sleep, and the lights on the
FKEYs (for example normally I can tap F1 which will mute/unmute the
speakers or F4 which will mute/unmute the mic, and both these actions
will toggle a light on that key) are nonresponsive. The only way to exit
this state is to hold the power button until the unit turns off, then
press the power button again to rewake. (The fact the FKEY lights do not
respond makes me believe the device has actually crashed at this point
and it isn't just a stuck-off screen.) For a couple months after this I
saw the problem between every other day and twice a day.

Last week I upgraded to 24.04 to see if this would help with the
problem. It has not resolved the problem. Since the upgrade I have seen
the problem twice. I gathered the attached logs immediately after waking
following one of these lockups/hard power cycles.


This has been a huge inconvenience so I will happily gather any other logs 
needed.

Two other pieces of information, not sure if helpful:

1. *Once*, exactly once in April, when I saw this problem, upon opening the 
screen the screen lit up and displayed three lines of a text error. The words 
"amd ring 0 error" were visible. The screen then went black (and stayed black) 
before I could record the other text.
2. The "Firmware Updater" app currently says my "System Firmware" can be 
upgraded from 0.1.46 to 0.1.52. I didn't see that until this week. I am going 
to try installing this firmware update and I will report back here if it 
does/doesn't make a difference.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.8.0-35-generic 6.8.0-35.35+1
ProcVersionSignature: Ubuntu 6.8.0-35.35-generic 6.8.4
Uname: Linux 6.8.0-35-generic x86_64
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Tue Jun 11 15:34:33 2024
InstallationDate: Installed on 2023-10-18 (238 days ago)
InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
MachineType: LENOVO 21CF000CUS
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-35-generic 
root=UUID=ecb1730b-cbe1-457c-a4f8-23e2eaf89020 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-6.8.0-35-generic N/A
 linux-backports-modules-6.8.0-35-generic  N/A
 linux-firmware                            20240318.git3b128b60-0ubuntu2
SourcePackage: linux
UpgradeStatus: Upgraded to noble on 2024-06-03 (8 days ago)
dmi.bios.date: 08/08/2023
dmi.bios.release: 1.40
dmi.bios.vendor: LENOVO
dmi.bios.version: R23ET70W (1.40 )
dmi.board.asset.tag: Not Available
dmi.board.name: 21CF000CUS
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76538 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.31
dmi.modalias: 
dmi:bvnLENOVO:bvrR23ET70W(1.40):bd08/08/2023:br1.40:efr1.31:svnLENOVO:pn21CF000CUS:pvrThinkPadT14Gen3:rvnLENOVO:rn21CF000CUS:rvrSDK0T76538WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21CF_BU_Think_FM_ThinkPadT14Gen3:
dmi.product.family: ThinkPad T14 Gen 3
dmi.product.name: 21CF000CUS
dmi.product.sku: LENOVO_MT_21CF_BU_Think_FM_ThinkPad T14 Gen 3
dmi.product.version: ThinkPad T14 Gen 3
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug noble

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https://bugs.launchpad.net/bugs/2069093

Title:
  When I put my Lenovo T14 g3n 3 to sleep by closing the lid, it often
  does not wake again when I open the lid

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