another occurrence, same symptoms, last evening, was watching a youtube
video.
i logged in via ssh, attached to tmux, launched htop, and started
killing as you requested, in the following order, usually signal 15 but
sometimes 9 if so noted below, if the name is postfixed with -- that
means the process did not disappear from htop, --Z means the "S" column
in htop then showed a Z, ++ means it was immediately respawned:
pulseaudio
pavucontrol
bluetooth-manager
xclock
xterm (this one did disappear)
vncviewer
x-window-manager-- (ie twm)
accounts-daemon
bluman-applet
xterm--Z
firefox-esr
ssh
rtkit-daemon
systemd-udev++
systemd-logind++
ssh-agent--
systemd-timesyncd++
systemd-resolved++
cron
bluetoothd
systemd --user
polkitd
login -p
at this point the console blanked and presented a login prompt. ctl-
alt-Fn still would not function, however i was able to login at the
console and attach to tmux. xorg remained on the process list still
consuming cpu as evident in the htop display at this point:
0 [| 0.7%] Tasks: 37; 2 running
1 [|||||||||||||||||||||||||||||||||||||||||100.0%] Load average: 1.18 1.09
1.18
Mem[||||||||| 147M/1.90G] Time: 23:11:18
Swp[|| 76.8M/1.86G]
PID START USER VIRT RES NI CPU% TIME+ S Command
1310 22:42 g 366M 35076 0 88.0 38:14.58 R /usr/lib/xorg/Xorg
-nolisten tcp :0 vt1 -keeptty -a
4761 22:43 root 26844 4248 0 0.0 0:07.73 R htop
1 08:36 root 219M 5388 0 0.0 0:04.58 S /sbin/init
4922 23:04 root 27516 4688 0 1.3 0:01.89 S htop
1371 22:42 g 30084 3112 0 0.0 0:01.20 S tmux new -d
1316 22:42 g 48492 1596 0 0.0 0:00.68 S x-window-manager
1490 22:42 g 0 0 0 0.0 0:00.50 Z xterm -bg black -fg white
-rightbar -xrm *charClass
4683 22:42 g 105M 4484 0 0.0 0:00.34 S sshd: g@pts/5
257 22:42 root 78440 8432 0 0.0 0:00.27 S
/lib/systemd/systemd-journald
539 22:42 messagebu 50208 2084 0 0.0 0:00.13 S /usr/bin/dbus-daemon
--system --address=systemd: --
1372 22:42 root 61440 4136 0 0.0 0:00.12 S sudo -H -uG -s
1338 22:42 g 50012 1312 0 0.0 0:00.11 S /usr/bin/dbus-daemon
--syslog --fork --print-pid 5
4684 22:42 g 29312 7552 0 0.0 0:00.10 S -bash
1400 22:42 g 29324 2440 0 0.0 0:00.10 S -bash
4850 23:04 g 61440 4180 0 0.0 0:00.10 S sudo -H -uG -s
1251 22:42 g 29280 228 0 0.0 0:00.09 S -bash
1971 22:42 g 29336 1040 0 0.0 0:00.09 S -bash
4924 23:09 g 29312 7600 0 0.0 0:00.09 S -bash
1347 22:42 g 0 0 0 0.0 0:00.08 Z /usr/bin/ssh-agent
x-window-manager
4727 22:43 root 28128 6480 0 0.0 0:00.06 S /bin/bash
4887 23:04 root 28092 6472 0 0.0 0:00.06 S /bin/bash
534 22:42 syslog 252M 1004 0 0.0 0:00.03 S /usr/sbin/rsyslogd -n
4803 22:59 systemd-r 70592 5292 0 0.0 0:00.03 S
/lib/systemd/systemd-resolved
4814 22:59 systemd-t 138M 3200 0 0.0 0:00.03 S
/lib/systemd/systemd-timesyncd
4651 22:42 root 105M 7004 0 0.0 0:00.02 S sshd: g [priv]
4779 22:54 root 45484 4024 0 0.0 0:00.02 S /lib/systemd/systemd-udevd
4780 22:54 root 70564 6112 0 0.0 0:00.02 S
/lib/systemd/systemd-logind
4818 23:03 root 76688 3696 0 0.0 0:00.01 S /bin/login -p ---p -- \u
--noclear tty1 linux
681 22:42 root 25600 4 0 0.0 0:00.00 S /sbin/dhclient -1 -4 -v
-pf /run/dhclient.eth0.pid
712 22:42 root 72280 356 0 0.0 0:00.00 S /usr/sbin/sshd -D
1287 22:42 g 4632 168 0 0.0 0:00.00 S /bin/sh /usr/bin/startx
1309 22:42 g 22628 408 0 0.0 0:00.00 S xinit
/etc/X11/xinit/xinitrc -- /etc/X11/xinit/xser
1337 22:42 g 45688 72 0 0.0 0:00.00 S /usr/bin/dbus-launch
--exit-with-session --sh-synta
1519 22:42 g 82724 812 0 0.0 0:00.00 S /usr/lib/bluetooth/obexd
2354 22:42 g 183M 368 0 0.0 0:00.00 S
/usr/lib/dconf/dconf-service
4723 22:42 g 21220 3556 0 0.0 0:00.00 S tmux set status 0; set
visual-b on; set display-t 9
F1Help F2Setup F3SearchF4FilterF5Tree F6SortByF7Nice -F8Nice +F9Kill F10Quit
i resumed killing:
9: x-window-manager--Z
dbus-daemon --system --address=systemd: --nofork
dbus-daemon --syslog
sshd
dhclient
sshd -D
dbus-launch --exit-with-sess
dbus-daemon --nofork
(sd-pam)
xinit--
startx--
9: xinit
occasionally during the above batch of kills i checked whether ctl-alt-
Fn might work yet, and they didn't, however at this point now they *do
work* (xinit and startx both disappeared now tho xorg still present and
consuming ~90% cpu). resuming kills:
xorg--
9: xorg
xorg finally gone now.
tried to re-launch xorg, failed.
tried apport-collect 1757299, failed, needed python3-launchpadlib.
installed python3-launchpadlib.
tried apport-collect 1757299, failed to launch a browser to authorize with
launchpad.
left box running and grabbed some sleep and breakfast.
observed /var/crash contains only .lock with same date&time as
/var/log/apport.log from last evening.
installed gpm, w3m, and links2.
apport-collect 1757299 succeeded.
submitted this comment.
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1757299
Title:
[Dell OptiPlex 755] Intermittently GUI hangs with high xorg CPU% after
launching applications
Status in xorg package in Ubuntu:
New
Bug description:
The problem is that after launching a few applications, the GUI may
become unresponsive, although this is not consistently reproducible.
When the GUI is unresponsive, it is correlated to high CPU utilization
of xorg.
An example reproduction scenario is launch the following in order, and
quickly:
startx
xterm via twm
another xterm via the first xterm
tmux
firefox-esr
bluetooth-manager
pavucontrol
While the above are launching, maximize the xterm running tmux, and
the GUI immediately becomes unresponsive. For example, Ctrl+Alt+Fn
don't respond.
After this, I logged in via ssh, attached to tmux, launched htop,
copied htop output, which shows xorg at 94.6 CPU%.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg 1:7.7+19ubuntu4
ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3
Uname: Linux 4.15.0-10-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
BootLog:
Skipping profile in /etc/apparmor.d/disable: usr.sbin.rsyslogd
* Starting AppArmor profiles [160G
[154G[ OK ]
* Restoring resolver state... [160G
[154G[ OK ]
CompositorRunning: None
Date: Tue Mar 20 17:15:16 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 82Q35 Express Integrated Graphics Controller [8086:29b2]
(rev 02) (prog-if 00 [VGA controller])
Subsystem: Dell OptiPlex 755 [1028:0211]
Subsystem: Dell OptiPlex 755 [1028:0211]
JournalErrors:
-- Logs begin at Fri 2018-02-23 08:59:47 CST, end at Tue 2018-03-20 17:14:39
CDT. --
Mar 20 17:01:37 hostname pulseaudio[1099]: [pulseaudio] module-alsa-card.c:
Failed to find a working profile.
Mar 20 17:01:37 hostname pulseaudio[1099]: [pulseaudio] module.c: Failed to
load module "module-alsa-card" (argument: "device_id="0"
name="pci-0000_00_1b.0" card_name="alsa_card.pci-0000_00_1b.0"
namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no
deferred_volume=yes use_ucm=yes
card_properties="module-udev-detect.discovered=1""): initialization failed.
Mar 20 17:01:37 hostname pulseaudio[1099]: [pulseaudio] backend-ofono.c:
Failed to register as a handsfree audio agent with ofono:
org.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not provided
by any .service files
Mar 20 17:01:37 hostname pulseaudio[1109]: [pulseaudio] pid.c: Daemon
already running.
MachineType: Dell Inc. OptiPlex 755
ProcEnviron:
LC_TIME=en_DK.utf8
TERM=screen
PATH=(custom, no user)
LANG=en_US.utf8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz ro
root=UUID=22e7c84a-a416-43e9-ae9d-ee0119fc3894 panic=30
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/30/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 0PU052
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA10:bd04/30/2008:svnDellInc.:pnOptiPlex755:pvr:rvnDellInc.:rn0PU052:rvr:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 755
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.90-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.3.3-0ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 17.3.3-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
---
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
BootLog:
Skipping profile in /etc/apparmor.d/disable: usr.sbin.rsyslogd
* Starting AppArmor profiles [160G
[154G[ OK ]
* Restoring resolver state... [160G
[154G[ OK ]
DistUpgraded: Fresh install
DistroCodename: bionic
DistroRelease: Ubuntu 18.04
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 82Q35 Express Integrated Graphics Controller [8086:29b2]
(rev 02) (prog-if 00 [VGA controller])
Subsystem: Dell OptiPlex 755 [1028:0211]
Subsystem: Dell OptiPlex 755 [1028:0211]
MachineType: Dell Inc. OptiPlex 755
Package: xorg (not installed)
ProcEnviron:
LC_TIME=en_DK.utf8
TERM=screen
PATH=(custom, no user)
LANG=en_US.utf8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz ro
root=UUID=22e7c84a-a416-43e9-ae9d-ee0119fc3894 panic=30
ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
Tags: bionic ubuntu
Uname: Linux 4.15.0-12-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 04/30/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 0PU052
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA10:bd04/30/2008:svnDellInc.:pnOptiPlex755:pvr:rvnDellInc.:rn0PU052:rvr:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 755
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.0~rc5-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.0~rc5-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
xserver.bootTime: Sat Feb 24 05:53:57 2018
xserver.configfile: default
xserver.devices:
input Power Button KEYBOARD, id 6
input Power Button KEYBOARD, id 7
input Logitech Logitech USB Optical Mouse MOUSE, id 8
input AT Translated Set 2 keyboard KEYBOARD, id 9
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 16421
vendor DEL
xserver.version: 2:1.19.6-1ubuntu1
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https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1757299/+subscriptions
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