Public bug reported:
I am not sure that this is a network-manager fault... just because it
causes troubles on shutdown (see shutdown section below). Network
manager is fine while system is running...
PROBLEMS
I used Ubuntu Mate 17.04 and was happy. After 17.10 release I upgraded system
with Software Updater tool. Upgrade was successful. But after a day or so I
noticed some problems with UI:
- When try to select a group of object on desktop or in the caja file manager
the selection is gone in about a second.
- Some popups (my translator plugin in firefox) was closed after appearing.
- When press and hold a key (arrow key to navigate in text or just a symbol)
the input was interrupted in about a second, like I release the button. (For
different desktops UI troubles are different, but problem with pressing and
holding key is common for KDE 5, Gnome 3 and Mate).
Then I noticed "^@" (without quotes) sequence appears in pure terminal
(Ctrl + Alt + F[1-8]) a bit more frequently than a second. Probably it
brakes UI.
I reinstalled Ubuntu Mate 17.10 from scratch, but the problem remains. I
also tried Kubuntu 17.10 and now Ubuntu 17.10 (with Gnome 3) with
persistent install but problem is still here. More the problem is
present when I boot from usb stick. But I have no troubles on Ubuntu
17.04 Mate and Windows 10
WHAT I TRIED
- Update BIOS to the latest version
- Update Intel microcode
- Uncheck "Use Intel Microcode" from Device Manager
- Switch between proprietary and Xorg drivers for NVidia
- Unmount and spin off HDD
- Add wi-fi kernel modules (ath, ath10k_core, ath10k_pci) into blacklist (seems
that it had no effect, they were loaded)
- Install all updates
SHUTDOWN PROBLEM
System cannot shutdown properly. It can hung (or maybe just waits and doesn't
show any logs or shows only a few lines - once it happens) or, in most cases, I
see:
[ *** ] A stop job is running for Network Manager (<waiting time>/<max time to
wait>)
OR
[ *** ] A stop job is running for WPA supplicant (<waiting time>/<max time to
wait>)
And later this
INFO task kworker/<info> blocked for more than 120 seconds
is added to the line
Where <info> could be different, for example: u8:2:169 or 0:1:33
If I wait about 6 or so minutes I finally can see:
Reached target Shutdown
But the laptop is still on and I have have to hold power button a few seconds
to halt it.
(for more information see attached photo-screenshots
HARDWARE
I have used Lenovo ideapad 700-15ISK all the time without hardware
modifications.
P.S.
Feel free to ping me if you need additional info. Also I always can experiment
from live usb stick.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: network-manager 1.8.4-1ubuntu3
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.4
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sun Nov 19 11:22:44 2017
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2017-11-19 (0 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
IpRoute:
default via 192.168.1.1 dev wlp2s0 proto static metric 600
169.254.0.0/16 dev wlp2s0 scope link metric 1000
192.168.1.0/24 dev wlp2s0 proto kernel scope link src 192.168.1.10 metric 600
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no username)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-con:
NAME UUID TYPE
TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-PRIORITY
READONLY DBUS-PATH ACTIVE DEVICE STATE
ACTIVE-PATH SLAVE
MNANSHFF 31d5cdf0-fc8c-49e9-8a3d-e3dcb0d6d609 802-11-wireless
1511108472 Sun 19 Nov 2017 11:21:12 AM EST yes 0
no /org/freedesktop/NetworkManager/Settings/1 yes wlp2s0 activated
/org/freedesktop/NetworkManager/ActiveConnection/1 --
Wired connection 1 3b76cb02-e9c2-3733-8cbd-8544a235b4f5 802-3-ethernet
1511105771 Sun 19 Nov 2017 10:36:11 AM EST yes 4294966297
no /org/freedesktop/NetworkManager/Settings/2 no -- --
-- --
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
CONNECTION CON-UUID CON-PATH
wlp2s0 wifi connected /org/freedesktop/NetworkManager/Devices/3
MNANSHFF 31d5cdf0-fc8c-49e9-8a3d-e3dcb0d6d609
/org/freedesktop/NetworkManager/ActiveConnection/1
enp3s0 ethernet unavailable /org/freedesktop/NetworkManager/Devices/2 --
-- --
lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 --
-- --
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI
WWAN-HW WWAN
running 1.8.4 connected started full enabled enabled
enabled enabled enabled
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug artful null wayland-session
** Summary changed:
- ^@ about twice a second in active pure terminal (including UI). Fail to
shutdown properly.
+ ^@ about twice a second in active pure terminal (affects some UI). Fail to
shutdown properly.
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https://bugs.launchpad.net/bugs/1733203
Title:
^@ about twice a second in active pure terminal (affects some UI).
Fail to shutdown properly.
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