Bug 78851
Summary: | rfkill: modem Sierra MC8805 (Dell Wireless 5570) stuck in low-power mode | ||
---|---|---|---|
Product: | Drivers | Reporter: | Hervé COMMOWICK (hervec) |
Component: | Platform_x86 | Assignee: | drivers_platform_x86 (drivers_platform_x86) |
Status: | NEW --- | ||
Severity: | normal | CC: | aleksander, leho, me, mkyral, noodles, pharon, rene_kirchner |
Priority: | P1 | ||
Hardware: | x86-64 | ||
OS: | Linux | ||
Kernel Version: | 3.14.7-1~bpo70+1 | Subsystem: | |
Regression: | No | Bisected commit-id: |
Description
Hervé COMMOWICK
2014-06-24 12:52:52 UTC
I also try to get serial interfaces working and it's finally working with this: # modprobe -r qcserial # modprobe sierra # echo 413c 81a3 > /sys/bus/usb-serial/drivers/sierra/new_id Then with a "minicom -D /dev/ttyUSB1" AT!GSTATUS? !GSTATUS: Current Time: 1736 Temperature: 38 Bootup Time: 0 Mode: LOW POWER MODE System mode: LTE PS state: Not attached LTE band: No band LTE bw: Unknown LTE Rx chan: 65535 LTE Tx chan: 65535 EMM state: NULL --- RRC state: RRC Idle IMS reg state: No Srv RSSI (dBm): 0 Tx Power: 0 RSRP (dBm): 0 TAC: 0000 (0) RSRQ (dB): 0 Cell ID: 00000000 (0) SINR (dB): -20.0 OK AT+CFUN=1 ERROR Even with serial interface, i can't get it to quit low power mode. (anyway, sierra and qcserial modules also need to be fixed, i have contacted Bjørn Mork about that) Any ideas ? Any update on this ? what can i do ? One more user with the same problem and exact same behavior. Because nobody has responded so far (3 months) I'm not sure if anybody working at this. It would be great if we could get any feedback if the "dell_laptop" maintainers think they could fix this or not. Oh and btw, update to the latest Dell E7440 BIOS (A10) don't change anything to the problem. BIOS says that Windows8 is able to bypass hardware switch, so there is a way :) I use a Dell Latitude E6440. But it uses the same modem type (Sierra MC8805 [Dell Wireless 5570]). I have the same issue: * Dell Latitude E7240 * BIOS version A10 * Sierra Wireless MC8805 (Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card) Vendor=413c ProdID=81a3 * kernel 3.18.0-0.rc5.git0.2.fc22.x86_64 I wasn't able to find a module combination to recognize the 5570 on 3.18.0-rc5. qcserial and sierra didn't seem to find anything. This is now fixed in libqmi and ModemManager, see: https://sigquit.wordpress.com/2015/02/09/dell-branded-sierra-wireless-3g4g-modem-not-online/ This is great news! Thank you very much. Which libqmi version do I need to use the new feature? libqmi git master; didn't release any new version with this yet. |