I've just tested Manjaro Live CD on the same laptop (Lenovo Thinkpad T460p) and the resume works well with kernel 5.15.x so it's a kernel configuration issue from Ubuntu.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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: Incomplete 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971437/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
