Hi, After open a bug report for Debian and made various tests guided by a Debian maintainer, I post a bug report here. It seems there is a problem of interaction between Nautilus and the kernel. When Nautilus scan the devices, the kernel resets the Huawei E220 3G USB modem. This occurs loop, which prevents the network connection. I do not know if the problem comes from the kernel or Nautilus, but we must take the problem by a side. And there are error messages from the kernel. Bellow the two links for a complete view of history. http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=563551 http://www.draisberghof.de/usb_modeswitch/bb/viewtopic.php?p=2036#2036 Regards.
Hi Frederic Does running "devkit-disks --enumerate" or the newer "udisks --enumerate" also reset the E220? Please have a look at bug 14499 especially comment https://bugzilla.kernel.org/show_bug.cgi?id=14499#c26 and report whether the suggestions there help. It may be the same problem. Thank you Damjan
Hi, Thank you for your reply. I can not connect to the Internet from GNOME, I'm connected using LXDE with NetworkManager. I run the commands in a terminal under LXDE: ~$ udisks --enumerate /org/freedesktop/UDisks/devices/sr1 /org/freedesktop/UDisks/devices/sr2 /org/freedesktop/UDisks/devices/sda1 /org/freedesktop/UDisks/devices/sda2 /org/freedesktop/UDisks/devices/sda /org/freedesktop/UDisks/devices/fd0 /org/freedesktop/UDisks/devices/sr0 ~$ udisks --enumerate /org/freedesktop/UDisks/devices/sr1 /org/freedesktop/UDisks/devices/sr2 /org/freedesktop/UDisks/devices/sda1 /org/freedesktop/UDisks/devices/sda2 /org/freedesktop/UDisks/devices/sda /org/freedesktop/UDisks/devices/fd0 /org/freedesktop/UDisks/devices/sr0 It will not reset the E220, the connection remains active. sr2 is associated to the E220. I'll look the bug 14499 and testing the workarounds. Regards.
Hi, I updated the firmware of the Huawei E220 with version 11.117.09.04.00, and the problems have been resolved. I can use Gnome and I connect to the Internet, I can browse the contents of the Huawei E220, and I am no longer obliged to throw twice Network-Manager to activate the network. I downloaded the firmware here : http://www.vodafone.de/hilfe-support/technischer-support/129464.html Regards.
All USB bugs should be sent to the linux-usb@vger.kernel.org mailing list, and not entered into bugzilla. Please bring this issue up there, if it is still a problem in the latest kernel release.