We're having a 2-for-1 sale on conky answers today. ;)

Glad it worked out for you as well.

That was my only real issue. There's still some odd behavior with some other programs, but that's also caused by having a multi-monitor setup. The desktop icons end up in weird places, and some programs don't really like fullscreen windows. Unfortunately there's not really anything that can be done about that until drivers/Xfce/software/etc are updated further.

Absolute newb to the OS in general here being a refugee from a dead Windows system, so I have little Linux knowledge (but have managed system tweaking of themes/icons etc, with a certain amount of trepidation!)

I was having this persistent issue with conky on Xubuntu 14.04 and nothing I did to any settings helped. Until your above post anyway. Thanks very much Habitual!

Resurrecting an old thread, but maybe I can help someone else in my situation. I've been running MX-14, Xfce 4.12.2, kernel 3.14-0.bpo.2-686-pae i686 (32 bit), Nvidia 304.131, one monitor, since mid-2015. It's been a joy to use. However, just yesterday my conky began to randomly not show up when logging in to my xfce desktop. Sometimes conky appeared on login, other times it didn't start at all. Didn't matter if it was a reboot or simply restarting X--it was completely unpredictable. What solved this for me was: in the GUI menu Settings/Session-and-Startup, under the Application-Autostart tab I edited the conky command to read

/usr/bin/conky -p 2

And that fixed it. Now conky shows up always on login. Don't know if the problem was becuase of a recent update or if installing tahrpup-6.05 frugally on another partition along with grub4dos as the bootloader messed anything up (how could it??). Well, anyway, thanks guys for the hints. Happy days again!

It's the gift that keeps on Giving.
Glad it worked out.