Failed to load session "ubuntu"

[doweller]

Oneiric (up to date, fresh install) does not log me in after update from alpha2-installation. I think this could be a xorg bug, but I am not sure. I tried to use ubuntu-bug to collect relevant information on a shell and hope I missed nothing when copying from shell into this window:

Architecture: i386
Date: Mon Jul 11 10:00:22 2011
Dependencies:
  adduser 3.112+nmu1ubuntu5
  base-passwd 3.5.22
  busybox-initramfs 1:1.18.4-2ubuntu1
  coreutils 8.5-1ubuntu6
  cpio 2.11-7ubuntu1
  cpp 4:4.6.0-3ubuntu1
  cpp-4.6 4.6.1-2ubuntu2
  debconf 1.5.40ubuntu1
  debianutils 3.4.3ubuntu1
  dpkg 1.16.0.3ubuntu3
  findutils 4.4.2-1ubuntu3
  fontconfig-config 2.8.0-3ubuntu1
  gcc-4.6-base 4.6.1-2ubuntu2
  ifupdown 0.6.10ubuntu4
  initramfs-tools 0.98.8ubuntu4
  initramfs-tools-bin 0.98.8ubuntu4
  initscripts 2.87dsf-4ubuntu25
  insserv 1.14.0-2.1
  keyboard-configuration 1.57ubuntu21
  klibc-utils 1.5.22-1ubuntu1
  libacl1 2.2.51-1
  libattr1 1:2.4.46-1
  libblkid1 2.19.1-2ubuntu2
  libbz2-1.0 1.0.5-6ubuntu1
  libc-bin 2.13-9ubuntu2
  libc6 2.13-9ubuntu2
  libcloog-ppl0 0.15.9-3
  libdb5.1 5.1.25-11
  libdbus-1-3 1.4.12-4ubuntu1
  libdrm-intel1 2.4.26-1ubuntu1
  libdrm-nouveau1a 2.4.26-1ubuntu1
  libdrm-radeon1 2.4.26-1ubuntu1
  libdrm2 2.4.26-1ubuntu1
  libexpat1 2.0.1-7ubuntu3
 libffi6 3.0.10~rc8-5
  libfontconfig1 2.8.0-3ubuntu1
  libfontenc1 1:1.1.0-1
  libfreetype6 2.4.4-2
  libfs6 2:1.0.3-1
  libgcc1 1:4.6.1-2ubuntu2
  libgcrypt11 1.4.6-5ubuntu1
  libgl1-mesa-dri 7.11~1-0ubuntu3
  libgl1-mesa-glx 7.11~1-0ubuntu3
  libglapi-mesa 7.11~1-0ubuntu3
  libglib2.0-0 2.29.10-0ubuntu2
  libglu1-mesa 7.11~1-0ubuntu3
  libgmp10 2:5.0.1+dfsg-7ubuntu2
  libgmpxx4ldbl 2:5.0.1+dfsg-7ubuntu2
  libgpg-error0 1.10-0.3ubuntu1
  libice6 2:1.0.7-2
  libklibc 1.5.22-1ubuntu1
  libllvm2.9 2.9+dfsg-3ubuntu1
  liblzma2 5.0.0-2
  libmount1 2.19.1-2ubuntu2
  libmpc2 0.9-3
  libmpfr4 3.0.1-4
  libmtdev1 1.1.0-0ubuntu1
  libncurses5 5.9-1
  libncursesw5 5.9-1
  libnih-dbus1 1.0.3-4ubuntu2
  libnih1 1.0.3-4ubuntu2
  libpam-modules 1.1.3-1ubuntu3
  libpam-modules-bin 1.1.3-1ubuntu3
  libpam0g 1.1.3-1ubuntu3
  libpciaccess0 0.12.1-1
  libpcre3 8.12-3ubuntu2
  libpixman-1-0 0.21.8-1ubuntu1
  libplymouth2 0.8.2-2ubuntu23
  libpng12-0 1.2.44-2ubuntu1
  libppl-c4 0.11.2-3ubuntu1
  libppl9 0.11.2-3ubuntu1
  libpwl5 0.11.2-3ubuntu1
  libselinux1 2.0.98-1.1
  libslang2 2.2.4-2ubuntu1
  libsm6 2:1.2.0-2
  libstdc++6 4.6.1-2ubuntu2
  libudev0 171-0ubuntu4
  libutempter0 1.1.5-4
  libutouch-evemu1 1.0.5-0ubuntu1
  libutouch-frame1 1.1.3-0ubuntu1
  libutouch-grail1 2.0.0-0ubuntu1
  libuuid1 2.19.1-2ubuntu2
  libx11-6 2:1.4.3-2ubuntu1
  libx11-data 2:1.4.3-2ubuntu1
  libxau6 1:1.0.6-3
libxaw7 2:1.0.9-2
  libxcb-shape0 1.7-3
  libxcb1 1.7-3
  libxcomposite1 1:0.4.3-2
  libxcursor1 1:1.1.12-1
  libxdamage1 1:1.1.3-2
  libxdmcp6 1:1.1.0-3
  libxext6 2:1.3.0-3
  libxfixes3 1:5.0-4
  libxfont1 1:1.4.3-2
  libxft2 2.2.0-3ubuntu1
  libxi6 2:1.4.3-3ubuntu1
  libxinerama1 2:1.1.1-3
  libxkbfile1 1:1.0.7-1
  libxmu6 2:1.1.0-2
  libxmuu1 2:1.1.0-2
  libxpm4 1:3.5.9-1ubuntu1
  libxrandr2 2:1.3.2-2
  libxrender1 1:0.9.6-2
  libxt6 1:1.1.1-2
  libxtst6 2:1.2.0-1
  libxv1 2:1.0.6-1
  libxvmc1 2:1.0.6-1ubuntu2
  libxxf86dga1 2:1.1.2-1
  libxxf86vm1 1:1.1.1-2
  lsb-base 4.0-0ubuntu13
  makedev 2.3.1-89ubuntu1
  module-init-tools 3.16-1ubuntu1
  mount 2.19.1-2ubuntu2
  mountall 2.27
  multiarch-support 2.13-9ubuntu2
  ncurses-bin 5.9-1
  net-tools 1.60-23ubuntu3
  passwd 1:4.1.4.2+svn3283-3ubuntu2
  perl-base 5.12.4-1ubuntu2
  plymouth 0.8.2-2ubuntu23
  procps 1:3.2.8-10ubuntu5
  sed 4.2.1-9
  sensible-utils 0.0.6ubuntu2
  sysv-rc 2.87dsf-4ubuntu25
  sysvinit-utils 2.87dsf-4ubuntu25
  ttf-dejavu-core 2.33-1
  tzdata 2011g-0ubuntu0.11.04
  ucf 3.0025+nmu2ubuntu1
  udev 171-0ubuntu4
  upstart 1.3-0ubuntu3
  util-linux 2.19.1-2ubuntu2
  x11-apps 7.6+4ubuntu2
  x11-common 1:7.6+7ubuntu1
  x11-session-utils 7.6+1ubuntu1
  x11-utils 7.6+3
  x11-xfs-utils 7.6+1
  x11-xkb-utils 7.6+4
  x11-xserver-utils 7.6+2
xauth 1:1.0.6-1
  xbitmaps 1.1.1-1
  xfonts-base 1:1.0.3
  xfonts-encodings 1:1.0.4-1
  xfonts-utils 1:7.6+1
  xinit 1.3.0-1
  xinput 1.5.3-2ubuntu1
  xkb-data 2.2.1-1ubuntu2
  xorg-docs-core 1:1.6-1ubuntu2
  xserver-common 2:1.10.2.902-1ubuntu2
  xserver-xorg 1:7.6+7ubuntu1
  xserver-xorg-core 2:1.10.2.902-1ubuntu2
  xserver-xorg-input-all 1:7.6+7ubuntu1
  xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
  xserver-xorg-input-mouse 1:1.7.0-4
  xserver-xorg-input-synaptics 1.4.1-1ubuntu1
  xserver-xorg-input-vmmouse 1:12.7.0-2
  xserver-xorg-input-wacom 1:0.11.0-0ubuntu1
  xserver-xorg-video-all 1:7.6+7ubuntu1
  xserver-xorg-video-ati 1:6.14.2-1ubuntu2
  xserver-xorg-video-cirrus 1:1.3.2-2ubuntu7
  xserver-xorg-video-fbdev 1:0.4.2-3ubuntu6
  xserver-xorg-video-geode 2.11.12-1build2
  xserver-xorg-video-intel 2:2.15.0-3ubuntu2
  xserver-xorg-video-mach64 6.9.0-1
  xserver-xorg-video-mga 1:1.4.13.dfsg-3build1
  xserver-xorg-video-neomagic 1:1.2.5-1ubuntu3
  xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1
  xserver-xorg-video-openchrome 1:0.2.904+svn920-1
  xserver-xorg-video-qxl 0.0.13-1
  xserver-xorg-video-r128 6.8.1-5
  xserver-xorg-video-radeon 1:6.14.2-1ubuntu2
  xserver-xorg-video-s3 1:0.6.3-4
  xserver-xorg-video-savage 1:2.3.2-3ubuntu2
  xserver-xorg-video-siliconmotion 1:1.7.4-0ubuntu7
  xserver-xorg-video-sis 1:0.10.3-3
  xserver-xorg-video-sisusb 1:0.9.4-2
  xserver-xorg-video-tdfx 1:1.4.3-4
  xserver-xorg-video-trident 1:1.3.4-2
  xserver-xorg-video-vesa 1:2.3.0-7
  xserver-xorg-video-vmware 1:11.0.3-2
  xterm 270-1ubuntu1
  xz-utils 5.0.0-2
  zlib1g 1:1.2.3.4.dfsg-3ubuntu3
DistroRelease: Ubuntu 11.10
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110705.1)
Package: xorg 1:7.6+7ubuntu1
PackageArchitecture: i386
ProblemType: Bug
ProcEnviron:
  LANGUAGE=en_US:en
  LANG=en_US.UTF-8
  SHELL=/bin/bash
ProcVersionSignature: Ubuntu 3.0-3.4-generic 3.0.0-rc5
SourcePackage: xorg
Symptom: display
Tags: crash oneiric
Title: Xorg crash
Uname: Linux 3.0-3-generic i686
UpgradeStatus: No upgrade log present (probably fresh install)

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu1
ProcVersionSignature: Ubuntu 3.0-3.4-generic 3.0.0-rc5
Uname: Linux 3.0-3-generic i686
Architecture: i386
Date: Mon Jul 11 09:59:03 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110705.1)
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
Title: Xorg crash
UpgradeStatus: No upgrade log present (probably fresh install)

[Felix Vollmer (felixvollmer)]

Hey,
I'm also affected. I did install the latest daily and updatet and now I only can log in via tty.
to solve this prob I tried:
 * choosing different sessions
 * create a new user
 * startx from tty
But I can't get X working.
xinit does work, but of cause you only get some terminal and no fancy windowmanger....
btw. since this problem I'm also affected by Bug #807306

[Paolo Rotolo (paolorotolo)]

Thanks for reporting this bug and any supporting documentation. Since this bug has enough information provided for a developer to begin work, I'm going to mark it as confirmed and let them handle it from here. Thanks for taking the time to make Ubuntu better!

[Felix Vollmer (felixvollmer)]

I think this bug is related to Bug #807306 or even a duplicate. The workaround
mv /run/udev /run/udev.old (as root)
is also working here. I will mark udev as also affected, but I'm unsure about the duplicate.

[Felix Vollmer (felixvollmer)]

sry, please delete

[doweller (do-weller)]

Nothing has changed through the recent updates of lightdm. Today I did a tail -f on syslog while trying to log into Oneiric and found this. I hope this helps some knowing person:

Jul 19 18:08:29 oneiric acpid: client connected from 1345[0:0]
Jul 19 18:08:29 oneiric acpid: 1 client rule loaded
Jul 19 18:08:29 oneiric kernel: [ 335.937111] mtrr: no MTRR for d0000000,1390000 found
Jul 19 18:08:29 oneiric kernel: [ 336.218695] mtrr: base(0xd0000000) is not aligned on a size(0x1390000) boundary
Jul 19 18:08:29 oneiric lightdm: PAM pam_open_session: NULL pam handle passed
Jul 19 18:08:29 oneiric lightdm: PAM pam_setcred: NULL pam handle passed
Jul 19 18:08:29 oneiric lightdm: PAM pam_getenvlist: NULL pam handle passed
Jul 19 18:08:59 oneiric lightdm: PAM pam_close_session: NULL pam handle passed
Jul 19 18:08:59 oneiric lightdm: PAM pam_setcred: NULL pam handle passed
Jul 19 18:08:59 oneiric gnome-session[1717]: WARNING: Session 'ubuntu' runnable check failed: Exited with code 1
Jul 19 18:08:59 oneiric gnome-session[1717]: WARNING: Unable to find default provider 'unity-2d-panel' of required provider 'panel'
Jul 19 18:08:59 oneiric gnome-session[1717]: WARNING: Unable to find default provider 'unity-2d-launcher' of required provider 'launcher'
Jul 19 18:08:59 oneiric pulseaudio[1430]: alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write!
Jul 19 18:08:59 oneiric pulseaudio[1430]: alsa-sink.c: Most likely this is a bug in the ALSA driver 'snd_ens1371'. Please report this issue to the ALSA developers.
Jul 19 18:08:59 oneiric pulseaudio[1430]: alsa-sink.c: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail.

[doweller (do-weller)]

By the way: I think this has nothing to do with bug #807306 - my keyboard works perfectly.

[Oskar Grindemyr (oskar-grindemyr)]

This is not a duplicate of #807306.
I logged the output from my system after updating it today which shows a similar but different output:

Jul 20 19:35:12 t1 acpid: client connected from 1170[0:0]
Jul 20 19:35:12 t1 acpid: 1 client rule loaded
Jul 20 19:35:14 t1 acpid: client 1170[0:0] has disconnected
Jul 20 19:35:14 t1 acpid: client connected from 1170[0:0]
Jul 20 19:35:14 t1 acpid: 1 client rule loaded
Jul 20 19:35:14 t1 lightdm: PAM pam_open_session: NULL pam handle passed
Jul 20 19:35:14 t1 lightdm: PAM pam_setcred: NULL pam handle passed
Jul 20 19:35:14 t1 lightdm: PAM pam_getenvlist: NULL pam handle passed
Jul 20 19:36:07 t1 acpid: client 1170[0:0] has disconnected
Jul 20 19:36:07 t1 acpid: client connected from 1170[0:0]
Jul 20 19:36:07 t1 acpid: 1 client rule loaded
Jul 20 19:36:12 t1 lightdm: PAM pam_close_session: NULL pam handle passed
Jul 20 19:36:12 t1 lightdm: PAM pam_setcred: NULL pam handle passed
Jul 20 19:36:12 t1 kernel: [ 724.747324] unity_support_t[12162]: segfault at 7 ip 00000000004012c2 sp 00007fffe62ea970 error 4 in unity_support_test[400000+3000]
Jul 20 19:36:12 t1 gnome-session[12114]: WARNING: Session 'ubuntu' runnable check failed: Killed by signal 11
Jul 20 19:36:12 t1 gnome-session[12114]: WARNING: Unable to find default provider 'unity-2d-panel' of required provider 'panel'
Jul 20 19:36:12 t1 gnome-session[12114]: WARNING: Unable to find default provider 'unity-2d-launcher' of required provider 'launcher'
Jul 20 19:36:17 t1 acpid: client 1170[0:0] has disconnected
Jul 20 19:36:17 t1 acpid: client connected from 1170[0:0]
Jul 20 19:36:17 t1 acpid: 1 client rule loaded
Jul 20 19:36:17 t1 lightdm: PAM pam_open_session: NULL pam handle passed
Jul 20 19:36:17 t1 lightdm: PAM pam_setcred: NULL pam handle passed
Jul 20 19:36:17 t1 lightdm: PAM pam_getenvlist: NULL pam handle passed

[thisisgil (thisisgil)]

I don't think this is a duplicate - I have XFCE installed and that session loads fine. I also have fully working keyboard and mouse. It's just the ubuntu / unity sessions that fail to load

[Ben Straton (fanum)]

Definitely not a duplicate of bug #807306. My keyboard works fine, and the workaround for that bug does not fix my system. I have a graphics card that will only run unity-2d (intel 855gm), and when I attempt to log in after an update (upgraded during alpha 1), there is no unity-2d option in lightdm, and the "unity" option that used to work (it still sent me to 2d), no longer does. If more information is needed, let me know. Also, can we unmark this as a duplicate? Could confuse new bug testers.

[Ben Straton (fanum)]

Ok, looks like I found a solution. For my situation at least. Hopefully it will work for others also. I noticed that unity-2d had disappeared from my session options, and my graphics card will only run unity-2d (if I select "unity" it will normally log me in still, but to the 2d desktop). After noticing that, I went to recovery console and ran:

sudo dpkg-reconfigure unity-2d

It gave me an error about the package being broken. Getting closer. I then ran these two commands to purge and re-install unity-2d and it also installed some other dependencies that were missing.

sudo dpkg -P unity-2d

sudo apt-get install unity-2d

So everyone try that, if you were running the 3d version previously it probably will not help, but with both versions of unity sharing more and more code, it is worth a try. Either way, this bug still needs to be unmarked as a duplicate, it has nothing to do with that other bug, and that is misleading.

[Bryce Harrington (bryce)]

Not an xorg bug.