Kevin Brubeck Unhammer, regarding the WiFi, yes this is a separate issue
not scoped to this report.
Please file a new report via a terminal and feel free to subscribe me to it:
ubuntu-bug linux
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I'll check with 4.9, yeah.
(And yes, rtl8723au ("modprobe 8723au") works fine, while the built-in
r8723au I blacklist since it drops out too much. I don't know if that
should be a separate bug or if there's a good reason for not having
rtl8723au by default; lwfinger seems to be a kernel driver
Christopher M. Penalver, I just created
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651294 and
subscribed you. see you there :-)
Kevin Brubeck Unhammer, thanks for the tip, I will try rtl8723au.
With r8723au, my wifi interface is working for some time (maybe 10min), then
hangs.
Same
Kevin Brubeck Unhammer, to keep this relevant to upstream, one would
want to periodically check for, and test the latest mainline kernel (now
4.9) as it is released.
Could you please advise?
** Changed in: linux (Ubuntu)
Status: Triaged => Incomplete
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Nicolas K (nielks), to track your hardware, it will help immensely if you filed
a new report with the Ubuntu repository kernel (not mainline/upstream) via a
terminal:
ubuntu-bug linux
Please feel free to subscribe me to it.
For more on why this is helpful, please see
Hm, I'm currently using 4.7.0-040700rc5-generic on 16.04 with
$ grep acp /etc/default/grub
GRUB_CMDLINE_LINUX="noprompt persistent acpi=noirq"
and have fully working boot, reboot, poweroff (on the Lenovo A740, not
A540).
(For wifi, I use https://github.com/lwfinger/rtl8723au dkms).
nielks,
Hello,
Same hardware configuration as Ratrop (Lenovo A540 with same bios revision)
I use kernel 4.4.0.53, with "acpi=noirq", and have the same issue: poweroff
hangs at exit screen.
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Same with pci=noacpi with kernel 4.4.0-28-generic and
4.4.14-040414-generic. And also wi-fi card not working with pci=noacpi
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Title:
[Lenovo
Ratrop, any difference with pci=noacpi?
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Title:
[Lenovo IdeaCentre A740] Doesn't poweroff on shutdown
To manage notifications about this bug go
Also confirm that With acpi=noirq can boot kernel 4.7-rc6 but does not
actually power down. Reboot work properly
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Title:
[Lenovo IdeaCentre
With acpi=noirq I confirm that can boot kernels>=4.3 (I'm writing this
from 4.4.0-28-generic) but does not actually power down
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Title:
[Lenovo
4.7rc5 has same behaviour: does not boot with acpi=noirq, does boot with
acpi=noirq.
** Tags removed: kernel-bug-exists-upstream-4.7-rc2
** Tags added: kernel-bug-exists-upstream-4.7-rc5
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Kevin Brubeck Unhammer, when communicating with upstream developers,
they want to see that you are testing the latest release available (now
4.7-rc5).
** Tags removed: kernel-bug-exists-upstream-4.1.1
** Tags added: kernel-bug-exists-upstream-4.7-rc2
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linux-image-4.7.0-040700rc2-generic_4.7.0-040700rc2.201606051831_amd64.deb
though the 4.4.0-24.43 from regular xenial repos also booted fine with
acpi=noirq
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Kevin Brubeck Unhammer, to clarify, which mainline 4.7 kernel did you
test specifically?
** Description changed:
With my Haswell based Lenovo IdeaCentre A740, if I do "systemctl poweroff" or
use any GUI to try to shut down, it gets to the stage of:
[ OK ] Reached target Shutdown
reboot:
I got a tip from Navin at https://bugzilla.kernel.org/show_bug.cgi?id=118401
to try acpi=noirq and this does not only let me boot kernels>=4.3 (I'm writing
this from mainline 4.7!), but also makes it poweroff and restart correctly.
However, it does not resume from suspend (it seems to suspend
Same issue with Haswell based Lenovo IdeaCentre A540 with same bios:
O00KT19AUS
09/30/2014
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Title:
[Lenovo IdeaCentre A740] Doesn't poweroff on
Kevin Brubeck Unhammer, one thing that may help reveal the root cause here is
if you add the following kernel parameter via
https://wiki.ubuntu.com/Kernel/KernelBootParameters:
debug=y
then when it's stopped, post a screenshot via camera.
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Kevin Brubeck Unhammer, it would, but the root cause for this issue
hasn't been identified.
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Title:
[Lenovo IdeaCentre A740] Doesn't poweroff on
Would it make sense to report this upstream?
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Title:
[Lenovo IdeaCentre A740] Doesn't poweroff on shutdown
To manage notifications about this
** Changed in: linux (Ubuntu)
Status: Expired => Triaged
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Title:
[Lenovo IdeaCentre A740] Doesn't poweroff on shutdown
To manage
4.2.8-wily boots, but has the same no-poweroff-issue.
4.3-wily does not boot (as in bug 1574178)
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Title:
[Lenovo IdeaCentre A740] Doesn't
Tried 4.6-rc5, can't boot with that either :( – it gives the exact same
issue as 4.4
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Title:
[Lenovo IdeaCentre A740] Doesn't poweroff on
Kevin Brubeck Unhammer, are you able to test with this on the latest
mainline kernel (4.6-rc5)?
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Title:
[Lenovo IdeaCentre A740] Doesn't
The bug is still present on linux 4.2, but I haven't been able to boot
with 4.4, see
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574178
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[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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Kevin Brubeck Unhammer, to see if this is already resolved in Ubuntu,
could you please test http://cdimage.ubuntu.com/daily-live/current/ and
advise to the results?
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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** Tags added: trusty
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Title:
[Lenovo IdeaCentre A740] Doesn't poweroff on
ubuntu-14.04-desktop-amd64.iso also has the same problem
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Title:
[Lenovo IdeaCentre A740] Doesn't poweroff on shutdown
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Kevin Brubeck Unhammer, for regression testing purposes, could you
please test 14.04.0 (not 14.04.1+) via http://old-
releases.ubuntu.com/releases/14.04.0/ and advise to the results?
** Tags added: utopic
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Kevin Brubeck Unhammer:
Tried 14.04 Utopic...
Just to advise, 14.04 is Trusty, and Utopic is 14.10. Hence, which
version of Ubuntu did you test precisely?
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Oh, sorry for the mix-up! The image I used is called
ubuntu-14.10-desktop-amd64.iso
So 14.10 Utopic.
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Title:
[Lenovo IdeaCentre A740] Doesn't
Tried 14.04 Utopic UEFI from an USB drive, it has the same behaviour as
the recent kernels.
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Title:
[Lenovo IdeaCentre A740] Doesn't poweroff on
I have created a seperate bug for the Medion Akoya E1232T:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1472274.
Christopher, I have subscribed you.
Thank you!
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Kevin Brubeck Unhammer, for regression testing purposes could you please
test http://releases.ubuntu.com/utopic/ and advise to the results?
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This was a fresh install of 15.04, I haven't tried earlier releases so I
don't know.
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Title:
[Lenovo IdeaCentre A740] Doesn't poweroff on
exists upstream in v.4.1.1 as well :(
** Tags added: kernel-bug-exists-upstream
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Title:
[Lenovo IdeaCentre A740] Doesn't poweroff on shutdown
Kevin Brubeck Unhammer, just to confirm, did this issue not occur in a
release prior to 15.04?
** Tags removed: kernel-bug-exists-upstream-4.1-rc7
** Tags added: kernel-bug-exists-upstream-4.1.1
** Tags removed: needs-upstream-testing
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Tiedemate (bjoerntiedemann), as your hardware is distinctly different, it will
help immensely if you filed a new report via a terminal:
ubuntu-bug linux
Please feel free to subscribe me to it.
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