Since moving to 2.6.30 (kernel-PAE-184.108.40.206-43.fc11.i686 and kernel-PAE-220.127.116.11-64.fc11.i686) the internal UMTS modem in my Thinkpad X61s isn't detected (it uses the sierra module).
The indicator light below the screen doesn't light up.
What's stranger is that if I boot into kernel-PAE-18.104.22.168-217.2.16.fc11.i686 where the modem is activated, then restart back into kernel-PAE-22.214.171.124-64.fc11.i686, the modem is still detected (indicator lights) and the modem works.
This then continues to work booting straight into kernel-PAE-126.96.36.199-64.fc11.i686 for some time - many reboots, perhaps a couple of weeks (I don't use the modem enough to have noticed exactly when it goes).
After a while (week or two?) it "disappears" again, and I have to boot in and out of 2.6.29 for it to activate.
Is there something storing state about connected devices? How volatile is the firmware storage? (the laptop is often off mains)
lsusb in kernel-PAE-188.8.131.52-64.fc11.i686 with working modem:
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 002: ID 1199:6813 Sierra Wireless, Inc.
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 003: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
Bus 003 Device 002: ID 0a5c:2110 Broadcom Corp. Bluetooth Controller
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Can you get dmesg and lsusb output from 2.6.30 when the device is working, as well as when the device is failed? I'm curious to find out if the system completely forgets the device is there or if the device is detected, but for some reason unable to be contacted. Additionally, rfkill http://www.mjmwired.net/kernel/Documentation/rfkill.txt was suggested as a reason the transmitter does not work. I will try to find out how to verify that and undo anything it may have done and follow up with you here in a couple of days. But again, if you could provide a txt file with:
dmesg from 2.6.30 while working
dmesg and lsusb from 2.6.30 while not working
We would appreciate it.
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(In reply to comment #1)
> Can you get dmesg and lsusb output from 2.6.30 when the device is working, as
> well as when the device is failed?
See attachments. In addition, I've attached dmesg and lsusb when the device is working in 2.6.29 (i.e. the step prior to having it working in 2.6.30).
If I flip the physical kill switch in a working 2.6.30 the indicator light disappears and reappears as it should (though the modem then doesn't show up in NetworkManager, but I suspect that's a different problem).
There isn't a /sys/class/rfkill/rfkill1/persistent, but I'll check /sys/class/rfkill/rfkill1/state next time I lose the device.
Same as bug 514038? (Leave both bugs open for now, there is debug info in both of them.)
(In reply to comment #9)
> Same as bug 514038?
I suspect bug 514038 comment 8 may be the same as this bug, but earlier parts of that bug are different, or at least have different symptoms: it seems in 514038 that although the device is lost after suspend, it comes back after reboot (or at least did until comment 8).
Also bug 514038 existed on 2.4.29, whereas this only started with 2.4.30.
Or do you think the underlying cause is related?
(I don't usually suspend; having tried I do indeed loose the working wwan device as per 514038)
(In reply to comment #10)
> Also bug 514038 existed on 2.4.29, whereas this only started with 2.4.30.
Ahem. 2.6, of course ;)
Still present with kernel-PAE-184.108.40.206-96.fc11.i686
Re-installing kernel-PAE-220.127.116.11-217.2.16.fc11.i686 from koji (yum had bumped it off) gets the sierra modem working again.
Though the issue is fixed when I try the Fedora 12 Beta LiveCD (which is using 18.104.22.168-56.fc12, should this be a kernel problem).
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