Am 05.07.2018 um 14:12 schrieb Takashi Iwai: > On Thu, 05 Jul 2018 12:41:03 +0200, > Rafael J. Wysocki wrote: >> >> On Thursday, July 5, 2018 11:50:11 AM CEST Takashi Iwai wrote: >>> On Thu, 05 Jul 2018 11:34:59 +0200, >>> Rafael J. Wysocki wrote: >>>> >>>> Hi, >>>> >>>> On Thu, Jul 5, 2018 at 9:05 AM, Takashi Iwai <[email protected]> wrote: >>>>> Hi, >>>>> >>>>> we've got a regression report since 4.17 about the behavior of >>>>> power-off with the power button. When a machine is powered off with >>>>> the power button on desktop, it reboots after a few seconds instead of >>>>> power down. >>>>> >>>>> The manual power down via "systemctl poweroff" works fine, so it's >>>>> possibly some spurious wakeup by the power button action, and some >>>>> ACPI-related change is suspected. >>>>> The regression still remains in 4.18-rc3. >>>> >>>> There are only a few ACPI commits directly related to power management >>>> between 4.16 and 4.17 and none of them looks particularly suspicious. >>> >>> OK, interesting. >>> >>>> It looks like the power button state may not be cleared sufficiently >>>> after it's been pressed which is now visible for some reason. >>> >>> Hmm, where can such a state remain? Since it happens after the >>> machine turned off, some (ACPI) wakeup bits? >> >> Basically, yes. >> >> It looks like a GPE may remain active which then triggers wakeup after >> shutdown. >> >> On a hunch, I'm wondering if reverting commit >> >> 18996f2db918 ACPICA: Events: Stop unconditionally clearing ACPI IRQs during >> suspend/resume >> >> (may not revert clearly, though) makes any difference. > > OK, I'm building a 4.17.x test kernel with that revert, in OBS > home:tiwai:bsc1099930 repo. > > Thomas, could you try later the kernel in > http://download.opensuse.org/repositories/home:/tiwai:/bsc1099930/standard/ > ? It'll take an hour or so until the build finishes.
With your new built kernel 4.17.4-1.g6f23755-default the power button works again, so the revert solved the problem Thanks Thomas
