Okular crashing because session bus not found

falsum · 2016-10-06 21:36:33

Okular has been crashing with the following message:

okular(3923)/kdeui (kdelibs): Session bus not found

I thought that dbus was no running properly, but according to the output of "systemctl status dbus.service" and "systemctl status dbus.socket," dbus is active. Based on other forum posts, I deleted the "$HOME/.kde4/" folder and ran "export $(dbus-launch)" but that didn't prevent Okular from crashing. Okular's crash handler generated the following output:

Application: Okular (okular), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[KCrash Handler]
#6  0x00007f64b8ef204f in raise () from /usr/lib/libc.so.6
#7  0x00007f64b8ef347a in abort () from /usr/lib/libc.so.6
#8  0x00007f64b98ec44d in qt_message_output(QtMsgType, char const*) () from /usr/lib/libQtCore.so.4
#9  0x00007f64bb19579c in ?? () from /usr/lib/libkdeui.so.5
#10 0x00007f64bb1ee41a in ?? () from /usr/lib/libkdeui.so.5
#11 0x00007f64bb1eedf2 in KApplication::KApplication(bool) () from /usr/lib/libkdeui.so.5
#12 0x0000000000409a00 in ?? ()
#13 0x00007f64b8edf291 in __libc_start_main () from /usr/lib/libc.so.6
#14 0x000000000040b65a in _start ()

Does anyone have any suggestions of what I could do to figure out what is causing Okular to crash?

Scimmia · 2016-10-07 00:04:36

1. Don't use dbus-launch anywhere, it will screw everything up.
2. Make sure all .pacnew files are properly merged
3. Make sure nothing is unsetting or changing the DBUS_SESSION_BUS_ADDRESS variable.

ewaller · 2016-10-07 20:35:58

Scimmia, I have been fighting this as well -- thank you for the suggestion on DBUS_SESSION_BUS_ADDRESS. On my system it was not getting set. Nothing was changing it, and all relevant pacnew files had been merged.
In my case, a polkit file was missing according to pacman -Qk 2>/dev/null | grep -v '0 missing'
I'm not exactly sure which file was missing or why. I suggest checking for missing files and reinstalling any packages so afflicted.

Last edited by ewaller (2016-10-07 20:36:52)

falsum · 2016-10-07 20:55:24

ewaller, pacman tells me that polkit is missing one file. How can I figure out which file that is? I tried to reinstall polkit but that didn't install the missing file.

ewaller · 2016-10-07 21:12:39

Ah, did you run that as root? I think it misses /etc/polkit-1/rules.d/50-default.rules otherwise.
Did reinstalling polkit fix it?

I ask because I had been having trouble in Openbox reinstalled that package and rebooted, but restarted into i3. Maybe I have not fixed it yet?
But, I checked before running startx and DBUS_SESSION_BUS_ADDRESS was set. In Openbox (before the restart) it had not been.

Edit: No, it now works with Openbox as well.

Last edited by ewaller (2016-10-07 21:34:17)

Scimmia · 2016-10-07 23:09:18

I'm glad you found the problem, ewaller. My list wasn't exhaustive, just what I've seen causing dbus issues so far. I'll add this to the list

falsum · 2016-10-07 23:28:26

ewaller, I didn't realize that running pacman -Qk as root makes a difference. When I run as root, there are no files missing according to pacman -Qk. At any rate, reinstalling polkit did not fix it.

I rebooted my machine and I checked that before and after running startx DBUS_SESSION_BUS_ADDRESS is set (its value is "unix:path=/run/user/1000/bus").

Scimmia · 2016-10-08 19:11:39

falsum wrote:

I rebooted my machine and I checked that before and after running startx DBUS_SESSION_BUS_ADDRESS is set (its value is "unix:path=/run/user/1000/bus").

This is correct. it's possible my idea was wrong here.

ewaller · 2016-10-08 21:04:21

Yeah, we are fighting different problems. In my case, it was not set in the first place. After you run startx, the variable become unassigned?

Arch Linux

#1 2016-10-06 21:36:33

Okular crashing because session bus not found

#2 2016-10-07 00:04:36

Re: Okular crashing because session bus not found

#3 2016-10-07 20:35:58

Re: Okular crashing because session bus not found

#4 2016-10-07 20:55:24

Re: Okular crashing because session bus not found

#5 2016-10-07 21:12:39

Re: Okular crashing because session bus not found

#6 2016-10-07 23:09:18

Re: Okular crashing because session bus not found

#7 2016-10-07 23:28:26

Re: Okular crashing because session bus not found

#8 2016-10-08 19:11:39

Re: Okular crashing because session bus not found

#9 2016-10-08 21:04:21

Re: Okular crashing because session bus not found

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