Follow-up for @Owen Yaggy's kernel-regression theory (comment #23): the no-precursor s2idle hang is still happening on this system, on a newer kernel, with the original Intel AX211/CNVi hardware completely out of the picture - so whatever this is, it doesn't look specific to that chip.
2026-10-15 18:48:14 JST: suspend requested, teardown completely normal (WiFi - now a Buffalo USB adapter on rtw88, not the Intel AX211 - disconnected cleanly, no errors), systemd successfully froze user.slice, then `kernel: PM: suspend entry (s2idle)` with nothing else ever logged. Forced power-off required, identical to every other instance of this pattern since the original report. Kernel is 7.0.0-38-generic here (up from .34, where I first saw this recur after removing the Intel WiFi entirely) - so on this machine the hang has persisted across at least three point releases (.31, .34, .38), independent of the specific WiFi chip involved. Adding this in case it's useful for narrowing down where in the suspend path the regression actually lives. One note given this bug was just retargeted to linux-firmware-intel-wireless: that package is the right home for the crash-loop part of the original report (that one genuinely is Intel-firmware-specific), but the suspend-hang part isn't - as above, it reproduces with no Intel hardware involved at all. Might be worth tracking that half against the kernel itself rather than assuming it's scoped to Intel firmware. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2167666 Title: Intel AX211 (0000:00:14.3) iwlwifi firmware crash (ADVANCED_SYSASSERT) after resume causes s2idle suspend to hang; does not reproduce on Windows 11 on same hardware To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware-intel-wireless/+bug/2167666/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
