Local session raisen insted of networked

[Peter Fodrek]

Dear Ubuntu developers,

I am preparing local host and about 20 clients to use Ubuntu based "X terminals" to teach parallel programing class.

I was used XDMCPfor openSUSE and Ubuntu as well with MAC OS X and Ubuntu remote X servers(X-terminals) using xdm
 in the past

With Ubuntu 15.04 there is an issue. XDCMP request form X -terminal contacts host, but host does not connect to remote X-server and instead starts local session for host and therefore stops running unity and reach login screen with System runs in low resolution mode error message

Is there any way to change such behavior using gdm , because it is only display manager I was able to use pam-ldap login with "Not Listed/Someone else" login name option with history of recently logged users

I look forward hearing form you

Yours faithfully

Peter Fodrek

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4
Uname: Linux 3.19.0-26-generic x86_64
.tmp.unity.support.test.1:

ApportVersion: 2.17.2-0ubuntu1.3
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Mon Aug 24 16:02:37 2015
DistUpgraded: Fresh install
DistroCodename: vivid
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Rage XL PCI [1002:4752] (rev 27) (prog-if 00 [VGA controller])
   Subsystem: Compaq Computer Corporation Proliant Rage XL [0e11:001e]
InstallationDate: Installed on 2015-08-19 (4 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: HP ProLiant DL380 G4
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=sk_SK.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=UUID=9d994a90-b893-43b4-9731-6e7f156262d0 ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
Renderer: Software
SourcePackage: xorg
Symptom: display
SystemImageInfo:
 current build number: 0
 device name: ?
 channel: daily
 last update: Unknown
UdevLog: Error: [Errno 2] Adresár alebo súbor neexistuje: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/19/2007
dmi.bios.vendor: HP
dmi.bios.version: P51
dmi.chassis.type: 23
dmi.chassis.vendor: HP
dmi.modalias: dmi:bvnHP:bvrP51:bd07/19/2007:svnHP:pnProLiantDL380G4:pvr:cvnHP:ct23:cvr:
dmi.product.name: ProLiant DL380 G4
dmi.sys.vendor: HP
version.compiz: compiz 1:0.9.12.1+15.04.20150410.1-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.60-2
version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.2-0ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.2-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1
xserver.bootTime: Mon Aug 24 15:44:33 2015
xserver.configfile: default
xserver.devices:
 input Power Button KEYBOARD, id 6
 input Genius Optical Mouse MOUSE, id 7
 input AT Translated Set 2 keyboard KEYBOARD, id 8
 input PS/2 Generic Mouse MOUSE, id 9
xserver.errors:
 open /dev/dri/card0: No such file or directory
 open /dev/dri/card0: No such file or directory
 AIGLX: reverting to software rendering
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.17.1-0ubuntu3

[Peter Fodrek (peter-fodrek)]

excuse us of insted

[penalvch (penalvch)]

Peter Fodrek, thank you for reporting this and helping make Ubuntu better.

As per https://wiki.ubuntu.com/Releases, Ubuntu 15.04 reached EOL on February 4, 2016.

Is this reproducible on a supported release?

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]