In order to work around problems with suspend to ram, I switched to using hybrid suspend. But upon resuming on one occasion I got this message on the screen (which was replicated in the journal): Uhhuh. NMI received for unknown reason 2d on CPU 0. Do you have a strange power saving mode enabled? Dazed and confused, but trying to continue What's happening? Should I use a older different kernel? I am using 4.12.14-lp151.28.36-default #1 SMP Fri Dec 6 13:50:27 UTC 2019 (8f4a495) x86_64 x86_64 x86_64 GNU/Linux It's all a fairly standard installation KDE plasma. Earlier there are other error messages. cache: parent cpu1 should not be sleeping hpet: hpet3 irq 25 for MSI CPU1 is up smpboot: Booting Node 0 Processor 2 APIC 0x4 cache: parent cpu2 should not be sleeping hpet: hpet4 irq 26 for MSI CPU2 is up smpboot: Booting Node 0 Processor 3 APIC 0x6 cache: parent cpu3 should not be sleeping hpet: hpet5 irq 27 for MSI CPU3 is up smpboot: Booting Node 0 Processor 4 APIC 0x1 cache: parent cpu4 should not be sleeping hpet: hpet6 irq 28 for MSI CPU4 is up smpboot: Booting Node 0 Processor 5 APIC 0x3 cache: parent cpu5 should not be sleeping CPU5 is up smpboot: Booting Node 0 Processor 6 APIC 0x5 cache: parent cpu6 should not be sleeping CPU6 is up smpboot: Booting Node 0 Processor 7 APIC 0x7 cache: parent cpu7 should not be sleeping CPU7 is up -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org