On Thu, 2015-06-18 at 21:30 +0200, Fab Stz wrote: > Hello, > > I'm facing some issues to connect to my mobile phone (Sony Ericsson W660i) > > I use Gammu/Wammu to connect to my mobile phone > With kernel 3.2 (debian wheezy) it works fine. But with kernel 3.16 (debian > jessie) or even 4.0.2 it doesn't work. > > Moreover, the connection of the phone to the PC makes some configuration > changes on my phone. It changes my netwok connection type from "2G only" to > "2G/3G" for obscure reasons In which kernel? > BTW, it seems the connection gets lost when the phone backlight turns off That suggest a power management issue. Does the backlight turn off with the older kernel? > Here is the dmesg when I connect the phone > [ 1536.912061] usb 3-2: new full-speed USB device number 2 using uhci_hcd > [ 1537.168027] usb 3-2: New USB device found, idVendor=0fce, idProduct=d0a3 > [ 1537.168035] usb 3-2: New USB device strings: Mfr=1, Product=2, > SerialNumber=3 > [ 1537.168040] usb 3-2: Product: Sony Ericsson W660 > [ 1537.168044] usb 3-2: Manufacturer: Sony Ericsson > [ 1537.168048] usb 3-2: SerialNumber: 3571550133112050 > [ 1537.371402] cdc_ether 3-2:3.8 usb0: register 'cdc_ether' at > usb-0000:00:1d.1-2, CDC Ethernet Device, 02:80:37:fa:02:00 > [ 1537.371459] usbcore: registered new interface driver cdc_ether > [ 1537.380242] cdc_wdm 3-2:3.7: cdc-wdm0: USB WDM device > [ 1537.380282] usbcore: registered new interface driver cdc_wdm > [ 1537.382752] cdc_acm 3-2:3.1: ttyACM0: USB ACM device > [ 1537.387047] cdc_acm 3-2:3.3: ttyACM1: USB ACM device > [ 1537.389890] usbcore: registered new interface driver cdc_acm > [ 1537.389894] cdc_acm: USB Abstract Control Model driver for USB modems and > ISDN adapters > [ 1537.424010] cdc_wdm 3-2:3.7: wdm_int_callback - 0 bytes > [ 1537.446697] cdc_ether 3-2:3.8 usb0: kevent 12 may have been dropped There is no disconnection in the log on the USB level. What exactly do you mean by disconnection? > I already reported the following bug > https://bugzilla.kernel.org/show_bug.cgi?id=100091 > > Is there anything to do ? Fix ? Please try with usb.autosuspend=-1 on the kernel command line. Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
