> Just to give another data point, I've been running 5.19 from hwe-edge (instead of hwe) for some time but I realized this suspend issue after updating hwe-edge from 5.19.0.28.29~22.04.6 to 5.19.0.32.33~22.04.9.
I had a try with the latest 5.19 HWE kernel on a Lenovo Z13 I have on hand (with a similar APU) but can't seem to reproduce the issue reported. Since I can't seem to reproduce if this is a correct datapoint, I think ideally this should be bisected between those two git tags to figure out why this is happening. Ubuntu-hwe-5.19-5.19.0-28.29_22.04.1 Ubuntu-hwe-5.19-5.19.0-32.33_22.04.1 You can clone from https://git.launchpad.net/~ubuntu- kernel/ubuntu/+source/linux/+git/jammy to get those two tags to bisect with. > 6.1 from linux-oem-22.04c indeed fixes this suspend/ resume issue for me. AFAICT 5.19 was EOL already upstream at that time, so Canonical was tracking patches from 6.0.y to bring into their 5.19 kernel. I /suspect/ what happened is by doing this some dependency commits from 6.0 are missing. If you can identify which commit caused the problem it will help a lot to figure out what else is missing. Assuming it's an amdgpu regression (which we don't know right now) the one that looks most relevant is: 89bedb408c48 drm/amdgpu: disallow gfxoff until GC IP blocks complete s2idle resume So another option is for one of the Canonical kernel guys to try to build a 5.19 test kernel with that reverted. If that helps I'll look for the other related commits to this. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-5.19 in Ubuntu. https://bugs.launchpad.net/bugs/2007718 Title: HWE-22.04 Kernel 5.19 breaks suspend/wake on newer AMD Ryzen CPUs Status in linux-hwe-5.19 package in Ubuntu: Confirmed Bug description: After 22.04 LTS upgraded the linux-generic-hwe kernel to 5.19.0.32 (from 5.15.0.60) suspend/wake up is broken on my laptop. The system refuses to wake up in about 50% of the cases, seemingly random. The only "solution" is a forced system power down. Reverting back to 5.15.0.60 resolves this issue immediately. I suspect some patch was not re-applied to 5.19, since there are many postings on Reddit (for instance) about sleep problems with newer AMD CPUs, but 5.15 was running beautifully. My machine is a Lenovo Thinkpad T14s AMD Gen 3, AMD 6850u CPU. UPDATE: See attached log. This may not be a case of the laptop failing to resume, but a case of the laptop not suspending properly! What happened was the following. When packing in my things, I closed the laptop and put it in my bag. At home I picked it up again, and immediately noticed how unusually hot it was. The laptop didn't resume properly on opening the lid, but was frozen as before. So this might actually be a case of the laptop FAILING TO SUSPEND properly, instead of failing to wake up. UPDATE: I just noticed the battery was down to the low 40% from at least 80%. Given the temperature on opening the laption I suspect the CPU has been working hard during "sleep time". EDIT: Changed title after confirmation for earlier Ryzen 5000 CPU. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.19/+bug/2007718/+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
