Ubuntu 18.04 login page not shown after upgrade

[Gert van de Kraats]

As suggested by ubuntu an upgrade was started from 16.04 to 18.04.
Although it was a 32-bit upgrade and release notes tell 32-bit is not possible anymore, this upgrade succeeded.
But at the restart the login page was not shown and mouse/keyboard did not work.

Probably the problem was caused by the error at syslog:
Aug 19 23:34:11 gert-laptop org.gnome.Shell.desktop[959]: glamor: EGL version 1.4 (DRI2):
Aug 19 23:34:11 gert-laptop org.gnome.Shell.desktop[959]: Require OpenGL version 2.1 or later.
Aug 19 23:34:11 gert-laptop org.gnome.Shell.desktop[959]: Failed to initialize glamor
Aug 19 23:34:11 gert-laptop org.gnome.Shell.desktop[959]: Failed to initialize glamor, falling back to sw

Surprisingly login was possible by using recovery mode, then start "network" and finally pressing Ctrl-C.
Ubuntu was running successfully, but the external monitor was ignored.

Version of OpenGL seems to be 3.0:
glxinfo | grep OpenGL
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: llvmpipe (LLVM 6.0, 128 bits)
OpenGL core profile version string: 3.3 (Core Profile) Mesa 18.0.5
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 18.0.5
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 18.0.5
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:

Problem could be solved by using one of the
other *ubuntu's or the ugly xfce4, I tried.

The most simple solution is reconfigure lightdm to use display manager lightdm instead of gdm3 by starting : dpkg-reconfigure lightdm.

Ubuntu now works.
Version of OpenGL now seems to be 1.4 (same as at 16.04 release):
glxinfo | grep OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) 945GM x86/MMX/SSE2
OpenGL version string: 1.4 Mesa 18.0.5
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 2.0 Mesa 18.0.5
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16

Also the dual screen problems from 16.04 seem to be completely solved now.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xorg 1:7.7+19ubuntu7.1
ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18
Uname: Linux 4.15.0-32-generic i686
.tmp.unity_support_test.0:

ApportVersion: 2.20.9-0ubuntu7.2
Architecture: i386
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Mon Aug 20 15:55:22 2018
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: Dell Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [1028:01c2]
   Subsystem: Dell Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller [1028:01c2]
InstallationDate: Installed on 2010-09-01 (2910 days ago)
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.1)
LightdmGreeterLogOld:
 ** Message: Starting lightdm-gtk-greeter 2.0.1 (Jun 17 2015, 00:46:44)
 ** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf.d/01_ubuntu.conf
 ** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf

 ** (lightdm-gtk-greeter:1839): WARNING **: [PIDs] Failed to execute command: upstart
MachineType: Dell Inc. Latitude D620
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-32-generic root=UUID=45c32f72-ec04-4f85-acbe-f4a86c5b374a ro quiet splash vt.handoff=1
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/11/2006
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A02
dmi.board.name: 0TD761
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA02:bd04/11/2006:svnDellInc.:pnLatitudeD620:pvr:rvnDellInc.:rn0TD761:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude D620
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.13.1+18.04.20180302-0ubuntu1
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
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: Mon Aug 20 12:57:42 2018
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 12631
 vendor SEC
xserver.version: 2:1.19.6-1ubuntu4

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1727356, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.

[Gert van de Kraats (gkraats)]

Daniel,

Thanks for the soon reply.

I use now lightdm with display manager gdm3 and WaylandEnable=false.

I can startup but the logon-screen is not stable if dual monitor is
used. Screens are repeatingly repainted with and without the second
monitor and the display of the external monitor contains some extra info
from the laptop-screen.

But I can logon!!!

Also I got 2 crashes on gnome-shell, but cannot reproduce.

I will add comment to 1727356 as soon as I know more.

Gert

On 08/21/2018 04:04 AM, Daniel van Vugt wrote:
> *** This bug is a duplicate of bug 1727356 ***
> https://bugs.launchpad.net/bugs/1727356
>
> Thank you for taking the time to report this bug and helping to make
> Ubuntu better. This particular bug has already been reported and is a
> duplicate of bug 1727356, so it is being marked as such. Please look at
> the other bug report to see if there is any missing information that you
> can provide, or to see if there is a workaround for the bug.
> Additionally, any further discussion regarding the bug should occur in
> the other report. Feel free to continue to report any other bugs you may
> find.
>
>
> ** This bug has been marked a duplicate of bug 1727356
> Login screen never appears on early generation Intel GPUs (Core2 and Atom etc)
>
> ** This bug is no longer a duplicate of bug 1727356
> Login screen never appears on early generation Intel GPUs (Core2 and Atom etc)
>
> ** Package changed: xorg (Ubuntu) => mutter (Ubuntu)
>
> ** This bug has been marked a duplicate of bug 1727356
> Login screen never appears on early generation Intel GPUs (Core2 and Atom etc)
>