Red Hat Bugzilla – Bug 693692
Ericsson F3507g doesn't recover from resume
Last modified: 2012-07-20 19:07:31 EDT
Created attachment 489961 [details]
ModemManager log of failed connections and one succeeded connection
I attached a log (with my IMEI redacted) that I annotated with XML style comments ;) IMHO it pretty much speaks for itself, nevertheless here's a short description of the problem, too:
Description of problem:
After resuming from suspend the Ericsson F3507g that is in my ThinkPad X200 fails to recover to normal state. It is required to flip the wireless killswitch twice (and waiting for some seconds in between) before a WWAN connection can be established.
Version-Release number of selected component (if applicable):
On every resume
Sometimes after a fresh reboot, too
Steps to Reproduce:
1. Try to connect to the WWAN -> it fails
2. Trigger killswitch
3. Repeat 1.
4. Repeat 2.
5. Try connecting again -> it succeeds
A WWAN connection cannot be established as the WWAN modem doesn't seem to be ready before the impatient MM is pestering it with commands
A WWAN connection can established at any given time
SIM Card used: o2 Germany with PIN security disabled
So the ericsson comes back from resume and asks for the "PH-SIM PIN" which is the "phone to sim pin" which locks the phone to a specific SIM card. Have you enabled the phone-to-sim PIN before? If not, it may indicate the module is simply not completely initialized yet and the SIM hasn't had time to boot up and communicate with the module.
First, I'd recommend updating to the latest ModemManager in F14 updates.
Then after resume, wait about 30 seconds, then:
killall -TERM modem-manager
and wait until the modem appears in NM's menu again. Then try connecting and try posting the modem-manager debug logs here. Basically, lets wait a bit after resume to see if the modem and SIM can start talking to each other again.
Closing as the bug has been in NEEDINFO state for almost a year.
Problem also doesn't persist.