My C720 shuts down as well. Someone in this thread suggested that it was related to whether or not the adapter is connected:
https://productforums.google.com/forum/#!topic/chromebook-central/gjSnZJeMEls%5B1-25-false%5D I've yet to have it shut down when the adapter is connected, whether or not the adapter is plugged into the wall. Although that's not an optimal solution, it has removed a lot of the frustration to have a workaround. Thanks, Myles On Mon, Feb 9, 2015 at 7:20 AM, Aaron Durbin <adur...@chromium.org> wrote: > On Mon, Feb 9, 2015 at 1:32 AM, Matthias Apitz <g...@unixarea.de> wrote: > > El día Sunday, February 08, 2015 a las 11:14:10PM +0100, Idwer Vollering > escribió: > > > >> ? > >> > >> 2015-02-08 21:55 GMT+01:00 Matthias Apitz <g...@unixarea.de>: > >> > El día Sunday, February 08, 2015 a las 02:40:45PM -0600, Alex G. > escribió: > >> > > >> >> Suspect number one is the device overheating. The shutdown is > >> >> triggered by the EC. I don't know how you can enable ACPI debug > output > >> >> on BSD though. On linux, it would be "echo 1 > > >> >> /sys/module/acpi/parameters/aml_debug_output", so whatever the > FreeBSD > >> >> equivalent of that is. > >> > >> hw.acpi.verbose=1 would be a start. > >> ... > > > > Thanks for all the hints. > > > > As I said, the events are sporadic, seldom, but complete power-off (like > > as you would cut the cable from the motherboard). Of course the system > has no > > chance to write anything to /var/log/messages or console. > > > > My hope while writing to coreboot@ was to get a pointer to the list of > > open ore solved issues within coreboot and/or SeaBIOS to see if this > > issue is somewhat known, solved or could be related to some known or > > solved issue. Where can I find such a list which is normally (as we do > > in my company) attached to the Release Notes of a new version of > > software. > > > > On the surface this doesn't sound like anything coreboot or SeaBIOS > specific. Can you grab the cbmem console logs on the boot after the > power off (cbmem -c)? There is also an eventlog sitting in memory as > well that can be grabbed. mosys > ( > https://chromium.googlesource.com/chromiumos%2Fplatform%2Fmosys/+/refs%2Fheads%2Fmaster > ) > should be able to do that work for you: mosys eventlog list > > The last thing to get is the EC console log. That's much harder to get > as you have a kernel that doesn't have the EC driver in it. If you > feel adventurous the tool (util/ectool) can be found here: > > https://chromium.googlesource.com/chromiumos%2Fplatform%2Fec/+/refs%2Fheads%2Fmaster > > Hope that helps. > > -Aaron > > -- > coreboot mailing list: coreboot@coreboot.org > http://www.coreboot.org/mailman/listinfo/coreboot >
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