My Ubuntu 18.04 GUI seems frozen

[Thomas A. F. Thorne]

This will possibly be a duplicate of Bug #1820028

I was trying to report a frozen GUI over SSH. This is the second report that apport-cli generated when I ran it with xdm as the target package.

The symptoms I see are that I started running a go test last night and my GUI on Ubuntu 18.04 seems to have frozen. I cannot get the wireless mouse or keyboard to move anything on the display and the time shown on the clock matches when things froze last night.

Before I made the report I looked for any process using high amounts of CUP with top and htop but spotted none. I tried to local a SIGTERM the go test process but that made no difference.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xdm (not installed)
ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18
Uname: Linux 4.15.0-45-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Thu Mar 14 09:02:43 2019
DistUpgraded: 2018-07-27 11:19:59,510 DEBUG failed to SystemUnLock() (E:Not locked)
DistroCodename: bionic
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation HD Graphics 630 [8086:5912] (rev 04) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. HD Graphics 630 [1043:8694]
InstallationDate: Installed on 2017-11-16 (482 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-45-generic root=UUID=473dc1b9-3a5c-4f95-8cc0-e3b0f628ca41 ro quiet splash vt.handoff=1
SourcePackage: xdm
UnitySupportTest:
 Error: command ['/usr/lib/nux/unity_support_test', '-p', '-f'] failed with exit code 5: PuTTY X11 proxy: unable to connect to forwarded X server: Network error: Connection refused
 Error: unable to open display
UpgradeStatus: Upgraded to bionic on 2018-07-27 (229 days ago)
dmi.bios.date: 09/27/2017
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0811
dmi.board.asset.tag: Default string
dmi.board.name: STRIX H270F GAMING
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0811:bd09/27/2017:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnSTRIXH270FGAMING:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.13.1+18.04.20180302-0ubuntu1
version.libdrm2: libdrm2 2.4.95-1~18.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.2.2-0ubuntu1~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1
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: Tue Mar 12 13:46:44 2019
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.19.6-1ubuntu4.2
xserver.video_driver: modeset

[Timo Aaltonen (tjaalton)]

yes it's a dupe, caused by the i915 kernel driver