On Wed, 2011-06-15 at 00:30 +0200, Aleksander Morgado wrote: > So, this modem is reported as being a ZTE modem, and therefore uses the > ZTE plugin in ModemManager. > > 3 ports are found, (ttyUSB0,ttyUSB1 and ttyUSB2): > * Opening ttyUSB2 port doesn't take any time. > * Opening ttyUSB1 and ttyUSB0 need 15s each, and as they are done one > after the other, before even starting to probe the first port, it > consumed already 40s. This 15s delays opening the ports are likely to be > kernel issues. > > I actually have similar issues, even worse, with a Huawei modem in > Natty: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/772577 > > Then, probing ttyUSB1 and ttyUSB2, which are both AT ports, takes ~22s. > Closing the ports also seem to take long here, up to 5s each. > > But the modem is not fully exported until all ports are probed, and > ttyUSB0 is not an AT port, so it takes much much longer: needs to > timeout all AT commands sent to it (including extra ATE0+CPMS? in the > case of the ZTE plugin), until the QCDM ones are sent. > > So the overall modem detection needs up to 113s in your case, which > really is a lot, and mainly caused by the open/close port delays from > the kernel. Without these huge delays, the modem detection should take > around 20-25 max (guessing from the max time the QCDM port needs to get > detected).
yeah , also my report of a slow modem detection is a ZTE. As reported seems to work on ttyUSB2, but reviewing my old scripts , I can assure that unlock PIN on ttyUSB0 with command: /usr/bin/comgt PIN -d /dev/ttyUSB0 And on wvdial.conf, modem always was ttyUSB0. cat wvdial.conf Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 Modem Type = Analog Modem ; Phone = ISDN = 0 ; Username = Init1 = ATZ ; Password = Modem = /dev/ttyUSB0 Baud = 460800 [Dialer tmn] Init2 = ATZ Init3 = AT+CGDCONT=1,"ip","internet" Stupid Mode = 1 ISDN = 0 Phone = *99***1# Ask Password = 0 Modem = /dev/ttyUSB0 Username = tmn Dial Command = ATD Password = tmn Baud = 460800 So my ZTE works or worked on /dev/ttyUSB0 Hope that information can help. Btw, about news: my new HUAWEI mobile broadband rocks :) , the detection is quite fast and nm-applet also show the signal strength, on ZTE signal strength never change. Best regards, -- Sérgio M. B. _______________________________________________ networkmanager-list mailing list networkmanager-list@gnome.org http://mail.gnome.org/mailman/listinfo/networkmanager-list