On 30.04.2014 10:35, Zenaan Harkness wrote: > Please bottom-post, not top-post.
> On 4/30/14, Paul Seyfert <pseyf...@mathphys.fsk.uni-heidelberg.de> wrote: >> you're not paranoid, I've seen sudden reboots running wheezy (when it >> was testing and i think even since it's stable) on my x220 as well. >> though very rarely. i don't recall having seen it since September. but i >> remember it even happened once when i was sitting in front of it. >> >> I'm sorry i have to date not the slightest idea how to reproduce the >> behaviour. > > See below. > >> the time i happened to see it, it looked like the power went out (with >> PSU connected and battery fully charged). after about a second in which >> i wondered what was going on, the computer booted as if it was switched >> off and somebody pressed the power button. > > I run sid, and have reproduced this when x220 is connected to power/ > "battery slice" which is like a docking station, but it's just a > battery. > > When connecting power to the slice (recommended, apparently when slice > is connected, should not connect power to laptop (which has its own > power connector of course) but to slice power connector. > > This causes instant reboot for me. > hm, i use various combinations. * 9 cell * 9 cell + PSU * 9 cell + docking station + PSU connected to notebook * 9 cell + docking station + PSU connected to docking station * 9 cell + slice * 9 cell + slice + PSU connected to slice * 9 cell + slice + PSU connected to notebook (yes, rarely i end up in the not-recommended setting) it didn't occur to me that the random reboot is due to a particular setting, none of the settings reliably triggers the reboot. > I have not had time to check out LENOVO bios updates yet. > this is different for me. i had quite some problems with the very early bios versions of the x220 when I got it. After three updates I ended up with UEFI: 1.17 / ECP: 1.08 > This is a known problem. I haven't finished reading giyf search > results to determine how to fix, would like to know myself of course. > > So x220 laptops have known power problems. Also with regular internal > battery: battery can reach a state where the ACPI (or whatever it is) > can no longer reliably tell you what charge state the battery is. I > have reverted to disabling automatic shutdown and power-low > notifications, since the battery status can change back and forth to > eg 2hrs to go, empty, 1hr55 to go, empty etc. and each "empty" causes > annoying pop ups. I think this is a different problem. For the random reboot, let me repeat that i didn't see a shutdown when i was present at the random shutdown event. the notebook was suddenly off. like removing the battery and unplugging the PSU. so the random reboot doesn't seem acpi related to me. > > [...] Cheers, Paul -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/5360bb4d.80...@mathphys.fsk.uni-heidelberg.de
