Re: Programs like pcmanfm, evince, ... don't connect to dbus unless run with dbus-launch

[Brendan Tildesley]

On 08/13/18 08:09, Danny Milosavljevic wrote:
> Okay. To compare, try this:
> $ ps $(pgrep -U `id -u` '^dbus-daemon$') |grep session |grep -v /run/user/
> Notice the PID (first column) and then do:
> $ cat /proc/<pid>/environ  |tr '\0' '\n' |grep XDG
>
> Is the result the same?
address@hidden ~$ ps $(pgrep -U `id -u` '^dbus-daemon$') |grep session |grep -v
/run/user/
  708 ?        Ss     0:00
/gnu/store/5bda3bgy871dyb9cna4k7gnz002j88rq-dbus-1.12.6/bin/dbus-daemon
--syslog-only --fork --print-pid 5 --print-address 7 --session
address@hidden ~$ cat /proc/708/environ  |tr '\0' '\n' |grep XDG
XDG_VTNR=7
XDG_SESSION_ID=c1
XDG_DATA_DIRS=/gnu/store/ifq7znihd687bgz4gkn9vy1dsk60k7xl-shared-mime-info-1.8/share:/gnu/store/x9lfcagl47zbb6krfpmwm31m70s9pk00-glib-2.56.0/share:/gnu/store/hiij9hlxq53w39g0maf67b842j15kw22-gtk+-3.22.30/share:/gnu/store/6zhrh72zsfv4h8jw64rvzs3jcpm1ypmn-modem-manager-1.4.14/share:/gnu/store/n3zml7g3gfp0wgxrwqzairbqx9ab3q8l-network-manager-applet-1.8.4/share:/home/b/.guix-profile/share:/run/current-system/profile/share:/home/b/.guix-profile/share:/run/current-system/profile/share
XDG_SEAT=seat0
XDG_RUNTIME_DIR=/run/user/1000
XDG_CONFIG_DIRS=/home/b/.guix-profile/etc/xdg:/run/current-system/profile/etc/xdg
address@hidden ~$



>
>> ** (pcmanfm:1051): WARNING **: 20:10:52.602: XDG_TEMPLATES_DIR is set to
>> invalid path, ignoring it
>>
>> (pcmanfm:1051): Gtk-WARNING **: 20:10:52.604: Unable to locate theme
>> engine in module_path: "adwaita",
>>
>> (pcmanfm:1051): Gtk-WARNING **: 20:10:52.605: Unable to locate theme
>> engine in module_path: "adwaita",
>>
>> (pcmanfm:1051): Gtk-WARNING **: 20:10:52.606: Unable to locate theme
>> engine in module_path: "murrine",
> Hmm, I tried to find where it explicitly looks up "adwaita" and "murrine"
> in pcmanfm, but I couldn't find it.
>
> Can you try the following?
>
> $ export XDG_TEMPLATES_DIR=/tmp
> $ gdb --args pcmanfm --g-fatal-warnings
> (gdb) r
> ... wait until it crashes
> (gdb) bt
>
> and post the result here.  It should make it possible for us to find
> out where the "lookup" instruction is.
address@hidden ~$ export XDG_TEMPLATES_DIR=/tmp
address@hidden ~$ gdb --args pcmanfm --g-fatal-warnings
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For help, type "help".
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Reading symbols from pcmanfm...(no debugging symbols found)...done.
(gdb) r
Starting program:
/gnu/store/32zqds837fjm6ql4lsk2v27hn0j3zszc-profile/bin/pcmanfm
--g-fatal-warnings
[Thread debugging using libthread_db enabled]
Using host libthread_db library
"/gnu/store/l4lr0f5cjd0nbsaaf8b5dmcw1a1yypr3-glibc-2.27/lib/libthread_db.so.1".
[New Thread 0x7fffef53b700 (LWP 999)]
[New Thread 0x7fffeeb2a700 (LWP 1000)]
[New Thread 0x7fffee199700 (LWP 1001)]

** (pcmanfm:995): WARNING **: 18:22:56.725: XDG_TEMPLATES_DIR is set to
invalid path, ignoring it

Thread 1 "pcmanfm" received signal SIGTRAP, Trace/breakpoint trap.
0x00007ffff4f9b2c1 in _g_log_abort () from
/gnu/store/x9lfcagl47zbb6krfpmwm31m70s9pk00-glib-2.56.0/lib/libglib-2.0.so.0
(gdb) bt
#0  0x00007ffff4f9b2c1 in _g_log_abort () from
/gnu/store/x9lfcagl47zbb6krfpmwm31m70s9pk00-glib-2.56.0/lib/libglib-2.0.so.0
#1  0x00007ffff4f9c515 in g_logv () from
/gnu/store/x9lfcagl47zbb6krfpmwm31m70s9pk00-glib-2.56.0/lib/libglib-2.0.so.0
#2  0x00007ffff4f9c662 in g_log () from
/gnu/store/x9lfcagl47zbb6krfpmwm31m70s9pk00-glib-2.56.0/lib/libglib-2.0.so.0
#3  0x00007ffff5a76345 in _fm_templates_init () from
/gnu/store/4r9sh1ddhkd3qh92hxzqanjsxikzhqzi-libfm-1.3.0.2/lib/libfm.so.4
#4  0x00007ffff5a638d3 in fm_init () from
/gnu/store/4r9sh1ddhkd3qh92hxzqanjsxikzhqzi-libfm-1.3.0.2/lib/libfm.so.4
#5  0x00007ffff7851691 in fm_gtk_init () from
/gnu/store/4r9sh1ddhkd3qh92hxzqanjsxikzhqzi-libfm-1.3.0.2/lib/libfm-gtk.so.4
#6  0x0000000000413714 in main ()
(gdb)
>
>>> I suspect that the gvfs service file is either not there, the environment
>>> variable is not set or the executable mentioned inside the service file
>>> is not found.
>>>
>>> For better debugging, try:
>>>
>>> youruser$ export DBUS_VERBOSE=1
>>> youruser$ evince
>>>
>>> And post the result here.  
There is no output
>> ** (evince:1019): WARNING **: 20:07:46.869: Error retrieving
>> accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown:
>> The name org.a11y.Bus was not provided by any .service files
>> Error registering document:
>> GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name
>> org.gnome.evince.Daemon was not provided by any .service files
> Aha! Accessibility bus!
>
> I've checked, I have another dbus process for accessibility here:
>
> $ ps -ef |grep accessibility.conf
> dannym     600   596  0 Aug12 ?        00:00:00 
> /gnu/store/30v35016yw7nr0r9778k585vc1g7wsn8-dbus-1.12.2/bin/dbus-daemon 
> --config-file=/gnu/store/yj5plxmgaxsa1in6nx202a5xsz3y33yp-at-spi2-core-2.26.2/share/defaults/at-spi2/accessibility.conf
>  --nofork --print-address 3
>
> Do you have it?  For finding out, try:
>
> $ ps -ef |grep accessibility.conf
b          714   710  0 16:01 ?        00:00:00
/gnu/store/5bda3bgy871dyb9cna4k7gnz002j88rq-dbus-1.12.6/bin/dbus-daemon
--config-file=/gnu/store/842v39q6mf31wx818s0qrqkigc7lsjv0-at-spi2-core-2.26.2/share/defaults/at-spi2/accessibility.con
 --nofork --print-address 3

>
> If you have it, what does its /proc/.../environ contain?


address@hidden ~$ cat /proc/714/environ  |tr '\0' '\n'|sort
 ;;
 ;;
 *)
}
ALTERNATE_EDITOR=emacs
BASH_FUNC_cycle-layout%%=() {  CURRENT=$(setxkbmap -query | grep layout
| cut -d ':' -f 2- | tr -d ' ');
BASH_LOADABLES_PATH=/run/current-system/profile/lib/bash
 case $CURRENT in
CPATH=/home/b/.guix-profile/include
DBUS_FATAL_WARNINGS=0
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-D221282NDW,guid=695c2c1ced04449c1fa91b6b5be90946
DBUS_STARTER_ADDRESS=unix:abstract=/tmp/dbus-D221282NDW,guid=695c2c1ced04449c1fa91b6b5be90946
DBUS_STARTER_BUS_TYPE=session
DICPATH=/home/b/.guix-profile/share/hunspell:/run/current-system/profile/share/hunspell
DISPLAY=:0.0
 echo "my colemak";
 echo "qwerty"
EDITOR=emacsclient -nw -c -a "" $@
 esac
GIO_EXTRA_MODULES=/gnu/store/x9lfcagl47zbb6krfpmwm31m70s9pk00-glib-2.56.0/lib/gio/modules:/home/b/.guix-profile/lib/gio/modules:/run/current-system/profile/lib/gio/modules
GIT_EXEC_PATH=/home/b/.guix-profile/libexec/git-core
GIT_SSL_CAINFO=/etc/ssl/certs/ca-certificates.crt
GST_PLUGIN_PATH=/home/b/.guix-profile/lib/gstreamer-1.0
GST_PLUGIN_SYSTEM_PATH=/home/b/.guix-profile/lib/gstreamer-1.0
GTK_DATA_PREFIX=/run/current-system/profile
GTK_PATH=/gnu/store/hiij9hlxq53w39g0maf67b842j15kw22-gtk+-3.22.30/lib/gtk-3.0
GUILE_LOAD_COMPILED_PATH=/home/b/.guix-profile/lib/guile/2.2/site-ccache:/home/b/.guix-profile/share/guile/site/2.2:/run/current-system/profile/lib/guile/2.2/site-ccache:/run/current-system/profile/share/guile/site/2.2
GUILE_LOAD_PATH=/home/b/.guix-profile/share/guile/site/2.2:/run/current-system/profile/share/guile/site/2.2
GUIX_GTK3_PATH=/home/b/.guix-profile/lib/gtk-3.0
GUIX_LOCPATH=/run/current-system/locale
HISTFILE=/home/b/.bash_eternal_history
HISTFILESIZE=-1
HISTSIZE=-1
HISTTIMEFORMAT=[%F %T]
HOME=/home/b
IBUS_COMPONENT_PATH=/home/b/.guix-profile/share/ibus/component
INFOPATH=/home/b/.config/guix/current/share/info:/home/b/.guix-profile/share/info:/run/current-system/profile/share/info:/home/b/.guix-profile/share/info:/run/current-system/profile/share/info
LANG=en_AU.utf8
LIBRARY_PATH=/home/b/.guix-profile/lib
LINUX_MODULE_DIRECTORY=/run/booted-system/kernel/lib/modules
LOGNAME=b
MAIL=/var/mail/b
MANPATH=/run/current-system/profile/share/man:/home/b/.guix-profile/share/man:/run/current-system/profile/share/man
MINETEST_SUBGAME_PATH=/home/b/.guix-profile/share/minetest/games
NM_VPN_PLUGIN_DIR=/gnu/store/c5hsbhfqzbikhfg29qlp3rjbq9nv8jn6-network-manager-vpn-plugins/lib/NetworkManager/VPN
PATH=/home/b/config/bin/:/run/setuid-programs:/home/b/.config/guix/current/bin:/home/b/.guix-profile/bin:/home/b/.guix-profile/sbin:/run/current-system/profile/bin:/run/current-system/profile/sbin:/home/b/.nix-profile/bin
PWD=/home/b
PYTHONPATH=/home/b/.guix-profile/lib/python3.6/site-packages
 setxkbmap -layout "us(basic)";
 setxkbmap -layout "us(colemak)";
SHELL=/gnu/store/q4b3s9y4i0da36drp7zfq9yqcf43s47v-bash-4.4.19/bin/bash
SHLVL=2
SSL_CERT_DIR=/etc/ssl/certs
SSL_CERT_FILE=/etc/ssl/certs/ca-certificates.crt
TERMINFO_DIRS=/home/b/.guix-profile/share/terminfo
TERM=xterm
TZDIR=/gnu/store/2b2md66fbzyspsmd5dj6zkj9hilac40r-tzdata-2018e/share/zoneinfo
 "us(colemak)")
USER=b
VISUAL=emacsclient -c -a "" $@
XAUTHORITY=/home/b/.Xauthority
XCURSOR_PATH=/home/b/.icons:/home/b/.guix-profile/share/icons:/run/current-system/profile/share/icons
XDG_CONFIG_DIRS=/home/b/.guix-profile/etc/xdg:/run/current-system/profile/etc/xdg
XDG_DATA_DIRS=/gnu/store/ifq7znihd687bgz4gkn9vy1dsk60k7xl-shared-mime-info-1.8/share:/gnu/store/x9lfcagl47zbb6krfpmwm31m70s9pk00-glib-2.56.0/share:/gnu/store/hiij9hlxq53w39g0maf67b842j15kw22-gtk+-3.22.30/share:/gnu/store/6zhrh72zsfv4h8jw64rvzs3jcpm1ypmn-modem-manager-1.4.14/share:/gnu/store/n3zml7g3gfp0wgxrwqzairbqx9ab3q8l-network-manager-applet-1.8.4/share:/home/b/.guix-profile/share:/run/current-system/profile/share:/home/b/.guix-profile/share:/run/current-system/profile/share
XDG_RUNTIME_DIR=/run/user/1000
XDG_SEAT=seat0
XDG_SESSION_ID=c1
XDG_VTNR=7
 xmodmap ~/.Xmodmap
 xset r rate 180 90;