I have an HP elitebook 8770w. It come with a 3G modem hs2350. I found in the mailing list some comment of someone having similar issue as mine, long ago:
I am on a uptodate CentOS7.2. And when I suspend/resume, My modem does not work anymore. There is still an issue in this OS....
NetworkManager-1.0.6-30.el7_2.x86_64
Can we try to go futher on this issue? Can someone guide me on what to test / do?
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After Suspend/Resume
usb-devices return this:
T: Bus=03 Lev=02 Prnt=02 Port=04 Cnt=04 Dev#= 6 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 4
P: Vendor=03f0 ProdID=3d1d Rev=00.00
S: Manufacturer=HP
S: Product=HP hs2350 HSPA+ MobileBroadband
S: SerialNumber=354DA74907FFFFM0
C: #Ifs=11 Cfg#= 1 Atr=e0 MxPwr=0mA
I: If#= 0 Alt= 0 #EPs= 0 Cls=02(commc) Sub=08 Prot=00 Driver=(none)
I: If#= 1 Alt= 0 #EPs= 1 Cls=02(commc) Sub=02 Prot=01 Driver=cdc_acm
/bin/usb-devices: line 79: printf: a: invalid number
I: If#= 0 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm
I: If#= 2 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm
I: If#= 3 Alt= 0 #EPs= 1 Cls=02(commc) Sub=02 Prot=01 Driver=cdc_acm
I: If#= 4 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm
I: If#= 5 Alt= 0 #EPs= 1 Cls=02(commc) Sub=09 Prot=01 Driver=cdc_wdm
I: If#= 6 Alt= 1 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
I: If#= 7 Alt= 2 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I: If#= 8 Alt= 0 #EPs= 1 Cls=02(commc) Sub=09 Prot=01 Driver=cdc_wdm
I: If#= 9 Alt= 0 #EPs= 1 Cls=02(commc) Sub=02 Prot=01 Driver=cdc_acm
lsusb return this:
Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 004 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 003: ID 138a:003d Validity Sensors, Inc. VFS491
Bus 003 Device 004: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]
Bus 003 Device 005: ID 1bcf:2c03 Sunplus Innovation Technology Inc.
Bus 003 Device 006: ID 03f0:3d1d Hewlett-Packard
If I try to connect it does not work.
I also tried this:
Attach Modem to Windows 7 VM
[ 2186.679689] cdc_mbim 3-1.5:1.6 wwp0s26u1u5i6: unregister 'cdc_mbim' usb-0000:00:1a.0-1.5, CDC MBIM
[ 2186.768497] usb 3-1.5: reset high-speed USB device number 6 using ehci-pci
[ 2187.360030] usb 3-1.5: reset high-speed USB device number 6 using ehci-pci
I detach it from widows and I try connecting:
[ 2257.489980] cdc_acm 3-1.5:1.1: ttyACM0: USB ACM device
[ 2257.491150] cdc_acm 3-1.5:1.3: ttyACM1: USB ACM device
[ 2257.492044] cdc_wdm 3-1.5:1.5: cdc-wdm0: USB WDM device
[ 2257.520671] cdc_mbim 3-1.5:1.6: cdc-wdm1: USB WDM device
[ 2257.520867] cdc_mbim 3-1.5:1.6 wwan0: register 'cdc_mbim' at usb-0000:00:1a.0-1.5, CDC MBIM, 56:3a:dc:2b:fa:58
[ 2257.521125] cdc_wdm 3-1.5:1.8: cdc-wdm2: USB WDM device
[ 2257.521171] cdc_acm 3-1.5:1.9: ttyACM2: USB ACM device
[ 2261.160903] usb 3-1.2: reset high-speed USB device number 4 using ehci-pci
[ 2261.717369] usb 3-1.2: reset high-speed USB device number 4 using ehci-pci
[ 2481.504438] IPv6: ADDRCONF(NETDEV_UP): wwp0s26u1u5i6: link is not ready
[ 2511.203071] cdc_mbim 3-1.5:1.6 wwp0s26u1u5i6: kevent 12 may have been dropped
[ 2511.203100] cdc_mbim 3-1.5:1.6 wwp0s26u1u5i6: kevent 12 may have been dropped
The interface seems to work:
wwp0s26u1u5i6: flags=4291<UP,BROADCAST,RUNNING,NOARP,MULTICAST> mtu 1500
inet 10.142.219.175 netmask 255.255.255.224 broadcast 10.142.219.191
ether 56:3a:dc:2b:fa:58 txqueuelen 1000 (Ethernet)
RX packets 227 bytes 65443 (63.9 KiB)
RX errors 1 dropped 0 overruns 0 frame 0
TX packets 1191 bytes 185079 (180.7 KiB)
TX errors 480 dropped 0 overruns 0 carrier 0 collisions 0
But .... See there are transmissions errors.... The connection is not really working.... Network Manager think its work and icon indicates I am connected and have a good reception level.
Rebooting without "power-cycling" also does not works.... I need to shutdown and boot again to make it working again....
