Public bug reported:
After upgrading from Ubuntu 21.10 to Ubuntu 22.04, my Lenovo Thinkpad
T460p doesn't wake-up after suspend. The kernel installed was linux-
image-5.15.0-27-generic. I downgraded to Linux kernel 5.13.15 and it
works fine now.
With Ubuntu 21.10, I had linux-image-5.13.15-40-generic kernel and it
worked fine, but I've uninstalled it after the upgrade to 22.04.
I also tested newer versions like 5.16.x and 5.17.x with the mainline
program and they cause the same issue.
The issue is that no key nor the power button nor the screen lid wake
the laptop with kernel versions superior to Linux 5.13 (5.13.15 I
think).
It's either a Linux kernel problem, or a compile options mistake.
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04 LTS
Release: 22.04
Codename: jammy
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: kernel linux suspend-resume
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https://bugs.launchpad.net/bugs/1971437
Title:
linux-image-5.15.0-27-generic causes Thinkpad T460p to not resume
after suspend
Status in linux package in Ubuntu:
New
Bug description:
After upgrading from Ubuntu 21.10 to Ubuntu 22.04, my Lenovo Thinkpad
T460p doesn't wake-up after suspend. The kernel installed was linux-
image-5.15.0-27-generic. I downgraded to Linux kernel 5.13.15 and it
works fine now.
With Ubuntu 21.10, I had linux-image-5.13.15-40-generic kernel and it
worked fine, but I've uninstalled it after the upgrade to 22.04.
I also tested newer versions like 5.16.x and 5.17.x with the mainline
program and they cause the same issue.
The issue is that no key nor the power button nor the screen lid wake
the laptop with kernel versions superior to Linux 5.13 (5.13.15 I
think).
It's either a Linux kernel problem, or a compile options mistake.
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04 LTS
Release: 22.04
Codename: jammy
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