Same here, many of those:
(nm-applet:8465): libnm-util-WARNING *: Ignoring invalid property 'route-data'
(nm-applet:8465): libnm-util-WARNING *: Ignoring invalid property 'address-data'
Question is: do you guys have network manager installed?
I have same problem right now and I have network manager installed.
I got so fedup with NM only getting worse, and now even requiring systemd, that I got rid of it and installed wicd instead. Seems to work well enough, simpler, fewer dependencies and weird bugs.
I dont think the problem is NM. I dont have this error when I lunch steam with : steam -tcp
And, I dont have this error when Steam server is up.
Starting it with -tcp solved my issue. Thanks for the tip @mikefaille
Rebooting solved mine.
Nothing extracted yet.
My hardware:
Intel Core i7-3517U CPU
Intel 4000 + NVIDIA GeForce GT 620M
My system information:
ArchLinux x64 3.19
Plasma 5 with Kwin 5.2 (X11 is used)
bumblebee + xf86-video-intel + mesa drivers + nvidia proprietary drivers (all lib32 are installed)
openal + alsa + pulseaudio (all lib32 are installed)
Why I got warning about oxygen-gtk ? I see this warning only with steam and with steam. Other gtk-applications works well.
Why I have so much warnings connected with NetworkManager?