Public bug reported:
Since 15.04 it is not possible to allow access control to a specific
user.
Tested with the current xubuntu 15.04 live iso file, it is the same problem.
$ md5sum xubuntu-15.04-desktop-amd64.iso
586604cdb814f906f7c18345138f503b xubuntu-15.04-desktop-amd64.iso
It can easily reproduced by adding another user:
sudo adduser user2
xhost +SI:localuser:user2
localuser:user2 being added to access control list
su user2
But it is sill not possible to start gui applications.
user2@xubuntu:~$ xclock
No protocol specified
Error: Can't open display: :0.0
user2@xubuntu:~$ /usr/bin/firefox
(process:3130): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size
== 0' failed
No protocol specified
No protocol specified
Error: cannot open display: :0.0
added apport-collect 1448431
---
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CasperVersion: 1.360
CurrentDesktop: XFCE
DistroRelease: Ubuntu 15.04
LiveMediaBuild: Xubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422.1)
Package: x11-xserver-utils 7.7+2ubuntu2
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Tags: vivid
Uname: Linux 3.19.0-15-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
** Affects: x11-xserver-utils (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-collected vivid
--
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which is subscribed to x11-xserver-utils in Ubuntu.
https://bugs.launchpad.net/bugs/1448431
Title:
xhost access control fails to add other users
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/x11-xserver-utils/+bug/1448431/+subscriptions
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