Ubuntu
unity8-desktop-session package

Black screen after greeter.

Bug #1573253 reported by Alistair Buxton on 2016-04-21

This bug report is a duplicate of: Bug #1549455: Unity8-dash on Intel Atom graphics crashes and restarts continuously [qtubuntu: ASSERT: "eglDestroyContext(mEglDisplay, EglContext) == EGL_TRUE"]. Edit Remove

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	unity8-desktop-session (Ubuntu)	New	Undecided	Unassigned

Bug Description

To reproduce:

1. Get ubuntu-desktop-16.04-amd64.iso and install it.
2. After install run "sudo apt-get update" and "sudo apt-get install unity8-desktop-session-mir"
3. Reboot
4. Select Unity 8 session at the greeter.

Result: black screen, nothing happens after several minutes.

None of the workarounds on the other bug make any difference. I am reporting this bug just to see if apport attaches anything useful as I can't find any log files with errors in them.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: unity8-desktop-session-mir 1.0.12+15.10.20150609-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Thu Apr 21 22:14:28 2016
InstallationDate: Installed on 2016-04-21 (0 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: unity8-desktop-session
UpgradeStatus: No upgrade log present (probably fresh install)
---
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
DistroRelease: Ubuntu 16.04
InstallationDate: Installed on 2016-04-21 (0 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
Package: unity8 8.12+16.04.20160401-0ubuntu1
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Tags: xenial
Uname: Linux 4.4.0-21-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True

See original description

Tags:

Revision history for this message

Alistair Buxton (a-j-buxton) wrote on 2016-04-21:

Dependencies.txt Edit (34.2 KiB, text/plain; charset="utf-8")
JournalErrors.txt Edit (12.7 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (106 bytes, text/plain; charset="utf-8")

Revision history for this message

Alistair Buxton (a-j-buxton) wrote on 2016-04-21:

Download full text (5.1 KiB)

According to "ps waxf" a lot of desktop things are running. Perhaps the whole desktop. It just doesn't render any of it:

773 ? 914 ? 1374 ? 1388 ? 1420 ? 1447 ? 1494 ? 1468 ? 1474 ? 1567 ? 1609 ? 1663 ? 1625 ? 1641 ? 1654 ? 1655 ? 1670 ? 1678 ? 1754 ? 1789 ? 2322 ? 1818 ? 1819 ? 1820 ? 1823 ? 1829 ? 1824 ? 1827 ? 1830 ? 1831 ? 1833 ? 1844 ? 1848 ? ... SLsl 0:00 /usr/sbin/lightdm
Sl 0:00 \_ lightdm --session-child 12 19
Ss 0:06 | \_ upstart --user
S 0:00 | \_ upstart-udev-bridge --daemon --user
Ss 0:02 | \_ dbus-daemon --fork --session --address=unix:abstract=/tmp/dbus-P2LhwGsWI9
Ss 0:00 | \_ /bin/sh -e /proc/self/fd/9
Sl 0:00 | | \_ /usr/lib/x86_64-linux-gnu/url-dispatcher/url-dispatcher
Ssl 0:00 | \_ /usr/bin/mediascanner-service-2.0
Ss 0:00 | \_ /usr/lib/x86_64-linux-gnu/hud/window-stack-bridge
Ss 0:00 | \_ gpg-agent --homedir /home/al/.gnupg --use-standard-socket --daemon
Sl 0:00 | \_ /usr/lib/at-spi2-core/at-spi-bus-launcher
S 0:00 | | \_ /usr/bin/dbus-daemon --config-file=/etc/at-spi2/accessibility.conf --nofork --print-address 3
Sl 0:00 | \_ /usr/lib/gvfs/gvfsd
Sl 0:00 | \_ /usr/lib/gvfs/gvfsd-fuse /run/user/1000/gvfs -f -o big_writes
S 0:02 | \_ upstart-dbus-bridge --daemon --session --user --bus-name session
S 0:01 | \_ upstart-dbus-bridge --daemon --system --user --bus-name system
S 0:00 | \_ upstart-file-bridge --daemon --user
Sl 0:00 | \_ /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-session
Sl 0:00 | \_ /usr/lib/dconf/dconf-service
Ssl 0:04 | \_ unity8
Sl 0:00 | | \_ /usr/lib/x86_64-linux-gnu/gstreamer1.0/gstreamer-1.0/gst-plugin-scanner -l
Ssl 0:00 | \_ /usr/lib/x86_64-linux-gnu/indicator-transfer/indicator-transfer-service
Ssl 0:00 | \_ /usr/lib/x86_64-linux-gnu/indicator-messages/indicator-messages-service
Ssl 0:00 | \_ /usr/lib/x86_64-linux-gnu/indicator-bluetooth/indicator-bluetooth-service
Ss 0:00 | \_ /usr/lib/x86_64-linux-gnu/indicator-power/indicator-power-service
Sl 0:00 | | \_ /usr/lib/x86_64-linux-gnu/gstreamer1.0/gstreamer-1.0/gst-plugin-scanner -l
Ssl 0:00 | \_ /usr/lib/x86_64-linux-gnu/indicator-datetime/indicator-datetime-service
Ssl 0:00 | \_ /usr/lib/x86_64-linux-gnu/indicator-keyboard/indicator-keyboard-service --use-gtk
Ssl 0:00 | \_ /usr/lib/x86_64-linux-gnu/indicator-sound/indicator-sound-service
Ssl 0:00 | \_ /usr/lib/x86_64-linux-gnu/indicator-session/indicator-session-service
Ss 0:00 | \_ /usr/lib/x86_64-linux-gnu/indicator-network/indicator-network-secret-agent
Sl 0:00 | \_ /usr/lib/x86_64-linux-gnu/notify-osd
Ssl 0:00 | \_ /usr/lib/x86_64-linux-gnu/indicator-application/indicator-application-service

According to "ps waxf" a lot of desktop things are running. Perhaps the whole desktop. It just doesn't render any of it:

773 ?        SLsl   0:00 /usr/sbin/lightdm
  914 ?        Sl     0:00  \_ lightdm --session-child 12 19
 1374 ?        Ss     0:06  |   \_ upstart --user
 1388 ?        S      0:00  |       \_ upstart-udev-bridge --daemon --user
 1420 ?        Ss     0:02  |       \_ dbus-daemon --fork --session --address=unix:abstract=/tmp/dbus-P2LhwGsWI9
 1447 ?        Ss     0:00  |       \_ /bin/sh -e /proc/self/fd/9
 1494 ?        Sl     0:00  |       |   \_ /usr/lib/x86_64-linux-gnu/url-dispatcher/url-dispatcher
 1468 ?        Ssl    0:00  |       \_ /usr/bin/mediascanner-service-2.0
 1474 ?        Ss     0:00  |       \_ /usr/lib/x86_64-linux-gnu/hud/window-stack-bridge
 1567 ?        Ss     0:00  |       \_ gpg-agent --homedir /home/al/.gnupg --use-standard-socket --daemon
 1609 ?        Sl     0:00  |       \_ /usr/lib/at-spi2-core/at-spi-bus-launcher
 1663 ?        S      0:00  |       |   \_ /usr/bin/dbus-daemon --config-file=/etc/at-spi2/accessibility.conf --nofork --print-address 3
 1625 ?        Sl     0:00  |       \_ /usr/lib/gvfs/gvfsd
 1641 ?        Sl     0:00  |       \_ /usr/lib/gvfs/gvfsd-fuse /run/user/1000/gvfs -f -o big_writes
 1654 ?        S      0:02  |       \_ upstart-dbus-bridge --daemon --session --user --bus-name session
 1655 ?        S      0:01  |       \_ upstart-dbus-bridge --daemon --system --user --bus-name system
 1670 ?        S      0:00  |       \_ upstart-file-bridge --daemon --user
 1678 ?        Sl     0:00  |       \_ /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-session
 1754 ?        Sl     0:00  |       \_ /usr/lib/dconf/dconf-service
 1789 ?        Ssl    0:04  |       \_ unity8
 2322 ?        Sl     0:00  |       |   \_ /usr/lib/x86_64-linux-gnu/gstreamer1.0/gstreamer-1.0/gst-plugin-scanner -l
 1818 ?        Ssl    0:00  |       \_ /usr/lib/x86_64-linux-gnu/indicator-transfer/indicator-transfer-service
 1819 ?        Ssl    0:00  |       \_ /usr/lib/x86_64-linux-gnu/indicator-messages/indicator-messages-service
 1820 ?        Ssl    0:00  |       \_ /usr/lib/x86_64-linux-gnu/indicator-bluetooth/indicator-bluetooth-service
 1823 ?        Ss     0:00  |       \_ /usr/lib/x86_64-linux-gnu/indicator-power/indicator-power-service
 1829 ?        Sl     0:00  |       |   \_ /usr/lib/x86_64-linux-gnu/gstreamer1.0/gstreamer-1.0/gst-plugin-scanner -l
 1824 ?        Ssl    0:00  |       \_ /usr/lib/x86_64-linux-gnu/indicator-datetime/indicator-datetime-service
 1827 ?        Ssl    0:00  |       \_ /usr/lib/x86_64-linux-gnu/indicator-keyboard/indicator-keyboard-service --use-gtk
 1830 ?        Ssl    0:00  |       \_ /usr/lib/x86_64-linux-gnu/indicator-sound/indicator-sound-service
 1831 ?        Ssl    0:00  |       \_ /usr/lib/x86_64-linux-gnu/indicator-session/indicator-session-service
 1833 ?        Ss     0:00  |       \_ /usr/lib/x86_64-linux-gnu/indicator-network/indicator-network-secret-agent
 1844 ?        Sl     0:00  |       \_ /usr/lib/x86_64-linux-gnu/notify-osd
 1848 ?        Ssl    0:00  |       \_ /usr/lib/x86_64-linux-gnu/indicator-application/indicator-application-service
 1856 ?        Sl     0:00  |       \_ /usr/bin/telephony-service-handler
 1857 ?        Ssl    0:00  |       \_ /usr/lib/x86_64-linux-gnu/indicator-network/indicator-network-service
 1875 ?        Ssl    0:00  |       \_ /usr/lib/x86_64-linux-gnu/unity-scopes/smartscopesproxy upstart
 1876 ?        Sl     0:00  |       \_ /usr/lib/evolution/evolution-source-registry
 1891 ?        S<l    0:00  |       \_ /usr/bin/pulseaudio --start --log-target=syslog
 1943 ?        Sl     0:00  |       \_ /usr/lib/telepathy/mission-control-5
 1971 ?        Ssl    0:00  |       \_ /usr/lib/x86_64-linux-gnu/unity-scopes/scoperegistry
 1972 ?        Ssl    0:00  |       \_ unity8-dash --desktop_file_hint=/usr/share/applications/unity8-dash.desktop
 2057 ?        Sl     0:01  |       \_ /usr/lib/evolution/evolution-calendar-factory
 2166 ?        Sl     0:00  |       |   \_ /usr/lib/evolution/evolution-calendar-factory-subprocess --factory contacts --bus-name org.gnome.evolution.dataserver.Subprocess.Backend.Calendarx2057x2 --own-path /org/gnome/evolution/dataserver/Subprocess/Backend/Calendar/2057/2
 2242 ?        Sl     0:00  |       |   \_ /usr/lib/evolution/evolution-calendar-factory-subprocess --factory local --bus-name org.gnome.evolution.dataserver.Subprocess.Backend.Calendarx2057x3 --own-path /org/gnome/evolution/dataserver/Subprocess/Backend/Calendar/2057/3
 2239 ?        Sl     0:00  |       \_ /usr/lib/evolution/evolution-addressbook-factory
 2312 ?        Sl     0:00  |       |   \_ /usr/lib/evolution/evolution-addressbook-factory-subprocess --factory local --bus-name org.gnome.evolution.dataserver.Subprocess.Backend.AddressBookx2239x2 --own-path /org/gnome/evolution/dataserver/Subprocess/Backend/AddressBook/2239/2
 2434 ?        Ssl    0:00  |       \_ /usr/bin/msyncd
 1358 tty8     Ssl+   0:00  \_ /usr/sbin/unity-system-compositor --disable-inactivity-policy=true --on-fatal-error-abort --file /run/lightdm-mir-0 --from-dm-fd 12 --to-dm-fd 21 --vt 8

Revision history for this message

Alistair Buxton (a-j-buxton) wrote on 2016-04-21: Dependencies.txt

Dependencies.txt Edit (33.7 KiB, text/plain)

apport information

tags:	added: apport-collected
description:	updated

Revision history for this message

Alistair Buxton (a-j-buxton) wrote on 2016-04-21: JournalErrors.txt

JournalErrors.txt Edit (12.5 KiB, text/plain)

apport information

Revision history for this message

Alistair Buxton (a-j-buxton) wrote on 2016-04-21: ProcEnviron.txt

ProcEnviron.txt Edit (106 bytes, text/plain)

apport information

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Black screen after greeter.

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unity8-desktop-session package