Public bug reported:
This bug report is highly similar to Bug #1770250, except that this time
i made sure to launch ubuntu-bug xserver-xorg before relaunching xorg,
just in case that provides packaging of better information. This
morning xorg froze again while watching a video. Watching a video seems
to bring it on more than not, tho it does sometimes happen without
watching a video. And FWIW i think fairly heavy swapping activity is
also often involved in eliciting this hang bug. This morning, as in
several earlier occurrences, the video image froze except that i was
able to move the mouse cursor, however window borders did not change as
they normally would when the mouse cursor travelled in and out of
windows. Onscreen interactions such as trying to show the twm root menu
or move or iconize windows, or keyboard keys such as ^L to the browser
or even ctl-alt-F2 or ctl-alt-F3 all failed to produce their usual
response. i was able to login via ssh, attach to tmux, and via htop
observe that xorg was consuming around 95% CPU. i then sent signal 3 to
xorg, after which ctl-alt-F2 and ctl-alt-F3 were again operational, and
i found the attached report in /var/crash.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg 1:7.7+19ubuntu7
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
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: Fri May 11 10:44:23 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]
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=/@bb/vmlinuz ro
root=UUID=22e7c84a-a416-43e9-ae9d-ee0119fc3894 partroot=:b init=/etc/g/subroot
subroot=@bb 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 2.4.91-2
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 2:1.19.6-1ubuntu4
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
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic ubuntu
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https://bugs.launchpad.net/bugs/1770687
Title:
Xorg hung again while watching a video
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