ubuntu-x-swat team mailing list archive

[Patrick Welche <prlw1@xxxxxxxxx>]

apport information

** Tags added: apport-collected

** Description changed:

  Binary package hint: xdm
  
  Bug discovered after upgrading an xdm-using 8.04.2 LTS x86_64-desktop
  laptop to 10.04 LTS, but now repeated as follows.
  
  Take default gdm-using 10.04 LTS x86_64-desktop laptop
  aptitude install xdm
  and set xdm as the default window manager
  restart
  
  You will now see the ubuntu white/red dots animation, and that's as far as things go.
  ctrl-alt f1 gets you a log in prompt
  ps ax | grep dm
  shows nothing - so this isn't the same as the "both gdm and xdm run" bug.
  
  In fact
  ps ax | grep -i x
  returns nothing.
  
  Extras: x.org x server v 1.7.6, intel graphics controller. According to kern.log
  fb0: inteldrmfb frame buffer device
  ... drm Initialized i915
  vga16fb: not registering due to another framebuffer present
  
  so things should be set for X to start, namely drm Initialized looks
  hopeful
  
  Yet running xdm -debug 2 from vt1 shows
  ...
  /usr/bin/X :0 vt7 -nolisten tcp -auth /var/lib/xdm/authdir/authfiles/...  (all OK)
  ...
  (EE) intel(0): [drm] failed to set drm interface version.
                             Failed to become DRM master.
                             failed to get resources: Bad file descriptor
                             Kernel modesetting setup failed
  (EE) Screen(s) found, but none have a useable configuration.
  Also surprising as:
  drmOpenDevice: node name is /dev/dri/card0
                           open result is 9 (OK)
  (Chipset GM45)
  
  So, how come X thinks drm isn't setup, yet the kernel thinks it is?
  
  
  Work around: put gdm back as default with dpkg-reconfigure {gdm|xdm}
  
  Now comparing Xorg.0.log in broken xdm and working gdm cases, xdm has:
  
  xf86OpenConsole: setpgid failed: Operation not permitted
  xf86OpenConsole: setsid failed: Operation not permitted
  
  and later drmOpenByBusid returns nothing as opposed to pci:0000:00:02.0
  
  So, why the permission denied? apparmor not treating xdm as well as it
  treats gdm?
  
  
  (no ubuntu-bug -p xdm included, as I am writing this on a working single-boot NetBSD/i386 laptop)
+ --- 
+ Architecture: amd64
+ DistroRelease: Ubuntu 10.04
+ Package: xdm 1:1.1.8-6ubuntu2
+ PackageArchitecture: amd64
+ ProcEnviron:
+  LANGUAGE=en_GB:en
+  LANG=en_GB.UTF-8
+  SHELL=/bin/bash
+ ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
+ Tags: lucid
+ Uname: Linux 2.6.32-22-generic x86_64
+ UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

** Attachment added: "Dependencies.txt"
   http://launchpadlibrarian.net/49203672/Dependencies.txt

-- 
[Lucid] Not possible to use xdm, only can use gdm
https://bugs.launchpad.net/bugs/585853
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