Bug#708980: xserver-xephyr does not open a window

[Jan Christoph Uhde <linux@obiwahn.org>]

Package: xserver-xephyr
Version: 2:1.12.4-6
Severity: important

Dear Maintainer,

Xephyr stopped working for me some days ago. At first I thought it is some
problem of the enlightenment 17 build I use. Today I have tried to run bbox,
gnome-session and other WMs but none of them worked.

I use the following script to start my sessions:
» cat desktop-xephyr 
#!/bin/bash
if [[ -z "$@" ]]; then
    echo "you need to supply something to be started in Xephyr"
    exit 1
fi

xdisplay()
{
    local disp=0;
    while [ -e "/tmp/.X${disp}-lock" ]; do
        disp=$(( disp + 1 ));
    done;
    echo $disp
}

#select display
display=$(xdisplay)

#start xserver
Xephyr -ac -screen 1600x900 -br 2> /dev/null :$display &

#set display
export DISPLAY=:$display

#wait for Xephyr to become ready
sleep 1

#start window manager
bash -c "$@"

#remove x lock
rm -fr /tmp/.X${display}-lock

And it creates the following output:

» bash -x desktop-xephyr /usr/bin/blackbox 
+ [[ -z /usr/bin/blackbox ]]
++ xdisplay
++ local disp=0
++ '[' -e /tmp/.X0-lock ']'
++ disp=1
++ '[' -e /tmp/.X1-lock ']'
++ echo 1
+ display=1
+ export DISPLAY=:1
+ Xephyr -ac -screen 1600x900 -br :1
+ DISPLAY=:1
+ sleep 1
+ bash -c /usr/bin/blackbox
bt::Display: failed to open display ''
+ rm -fr /tmp/.X1-lock


I think running "+ Xephyr ..." line used to open a window. But this is not
happening anymore.

Please give me some hints how to provide more useful information.

Regards,
Jan C. Uhde


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.8-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages xserver-xephyr depends on:
ii  libaudit0                 1:1.7.18-1.1
ii  libc6                     2.17-3
ii  libdrm2                   2.4.40-1~deb7u2
ii  libgcrypt11               1.5.0-5
ii  libgl1-mesa-glx [libgl1]  8.0.5-5
ii  libpixman-1-0             0.26.0-4
ii  libselinux1               2.1.13-1
ii  libx11-6                  2:1.5.0-1
ii  libxau6                   1:1.0.7-1
ii  libxdmcp6                 1:1.1.1-1
ii  libxext6                  2:1.3.1-2
ii  libxfont1                 1:1.4.5-2
ii  libxv1                    2:1.0.7-1
ii  xserver-common            2:1.12.4-6

Versions of packages xserver-xephyr recommends:
ii  libgl1-mesa-dri  8.0.5-5

xserver-xephyr suggests no packages.

-- no debconf information