I have exactly the same issue with an Medion Akoya E1232T, with two minor
differences:
1: After halt I have to press the power button long to switch it of physically.
2: After reboot I get a black screen.
Apart from that the behaviour is exactly as described by Kevin. This
machine has a
Kevin Brubeck Unhammer, could you please test the latest mainline kernel
(4.1.1) and advise to the results?
** Description changed:
- If I do systemctl poweroff or use any GUI to try to shut down, it gets
- to the stage of
-
+ With my Haswell based Lenovo IdeaCentre A740, if I do systemctl
That BIOS update is for Broadwell systems only, mine's a Haswell (BIOS
revision 00KT19AUS).
$ sudo dmidecode -s bios-version sudo dmidecode -s bios-release-date
gives
O00KT19AUS
09/30/2014
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** Tags removed: bios-outdated-o14kt15aus
** Tags added: latest-bios-o00kt19aus
** Tags added: kernel-bug-exists-upstream-4.1-rc7
** Changed in: linux (Ubuntu)
Status: Incomplete = Triaged
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Kevin Brubeck Unhammer, as per http://support.lenovo.com/us/en/products
/desktops-and-all-in-ones/lenovo-a-series-all-in-ones/lenovo-a740-all-
in-one an update to your computer's buggy and outdated BIOS is available
(O14KT15AUS). If you update to this following
No fix upstream :-/
This was a fresh install as of some days ago, these are the only kernels
I've tried:
ii linux-image-3.19.0-15-generic3.19.0-15.15
amd64Linux kernel image for version 3.19.0 on 64
bit x86 SMP
ii
Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.1
** Attachment added: sudo fwts
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1463422/+attachment/4412072/+files/fwts.results.log
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On testing hibernation, the screen first blanked out for half a second,
then showed the desktop again, but unresponsive. I clicked the power
button, it turned off, then clicked the power button again, and it
resumed fine with my terminal open. So hibernation works except, like
with systemctl
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