This thing bugs me since a few months. I use XFCE on Debian sid.
Whenever I click a menu item that opens a file dialog, be it open or
save, the application freezes for exactly 25 seconds, then the file
dialog shows up.
It happens with almost any GUI application, from LibreOffice to
Thunderbird and Google Chrome.
If I run the program in a terminal it's the same, but at least I get an
error in the terminal just after the 25 seconds expire:
Error creating proxy: error calling startservicebyname for
org.gtk.vfs.GoaVolumeMonitor: timeout was reached (g-io-error-quark, 24)
The timeout happens only on the first file dialog opening for each
program session, subsequent ones show up instantly. If I close the
program and open it again, the problem shows up again on the first file
dialog usage.
Googling for the error yields no exact results (only slightly different
errors). The closer I get is
https://bugs.launchpad.net/ubuntu/+source/xfce4-volumed/+bug/1347272
but, aside it being in Ubuntu and not Debian, it seems fixed in XFCE
4.11, and I'm running XFCE 4.12.
Any clue?