Aleksander Morgado <aleksan...@aleksander.es> writes: > On Mon, Mar 5, 2018 at 2:55 AM, Steven P <peaste...@gmail.com> wrote: >> $ pacman -Qi libqmi libmbim linux modemmanager | grep -B 1 Version >> Name : libqmi >> Version : 1.20.0-1 >> -- >> Name : libmbim >> Version : 1.16.0-1 >> -- >> Name : linux >> Version : 4.15.6-1 >> -- >> Name : modemmanager >> Version : 1.8rc1+6+g0f377f94-1 >> > > Oh, well, yes, that is like the latest of the latest :) > >> I did see an occasional error in dmesg about that interface that happened >> when I executed simple-connect - however during one of my tests I made sure >> that wwan0 was brought down when I made the connection and the error didn't >> occur. If this sounds related, let me know and I'll see if I can reproduce >> it (not at my laptop atm, just happened to have the above info in my notes) >> > > Any chance you can get us some ModemManager debug logs while > reproducing the issue? See: > https://www.freedesktop.org/wiki/Software/ModemManager/Debugging/ > > Really would like to see why it couldn't switch the wwan to raw-ip in > the kernel. > > Was the wwan0 interface down while you executed simple-connect?
wwan0 being up is the most likely cause. But seeing the debug logs to confirm this would be good. I started thinking about solving this in the driver, but ended up falling back to the original decision: The interface must be down. This is the way it is. You should respond to any error when attempting to write to the sysfs file. Bjørn _______________________________________________ ModemManager-devel mailing list ModemManager-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel