Public bug reported:
Binary package hint: modemmanager
On 9.04 I had no problems using old (but reliable) dialup modem Zyxel
Omni Mini. I connected it to USB port using Prolific PL2303 USB-to-
Serial connector. It sat on /dev/ttyUSB0 and worked just perfectly with
GnomePPP & WVDial.
After upgrade to 9.10 I tried to dial my ISP and got "/dev/ttyUSB0
Device or resource is busy" (or something very similar to). With SUDO I
could make wvdial to dial an ISP and establish connection, but it was
not a good solution.
Thorough LSOFing gave me that the device is opened by modem-manager
process. Attempts to PKILL it failed: it respawned again and again. I've
apt-get remove modemmanager, then pkilled it again and got non-root
usable modem!
But now NM does not auto-discover GSM-phones attached to /dev/ttyACM0
Guys, you did a great job, but do not forget about dialup users, please!
Would devteam do something to make modemmanager not capturing USB-modem,
if it is not GSM one?
** Affects: modemmanager (Ubuntu)
Importance: Undecided
Status: New
** Tags: dial-up dialup pl2303 prolific zyxel
** Description changed:
Binary package hint: modemmanager
On 9.04 I had no problems using old (but reliable) dialup modem Zyxel
Omni Mini. I connected it to USB port using Prolific PL2303 USB-to-
- Serial connector. It sat on /dev/ttyUSB0 and worked jusy perfectly with
+ Serial connector. It sat on /dev/ttyUSB0 and worked just perfectly with
GnomePPP & WVDial.
After upgrade to 9.10 I tried to dial my ISP and got "/dev/ttyUSB0
Device or resource is busy" (or something very similar to). With SUDO I
could make wvdial to dial an ISP and establish connection, but it was
not a good solution.
Thorough LSOFing gave me that the device is opened by modem-manager
process. Attempts to PKILL it failed: it respawned again and again. I've
apt-get remove modemmanager, then pkilled it again and got non-root
usable modem!
But now NM does not auto-discover GSM-phones attached to /dev/ttyACM0
Guys, you did a great job, but do not forget about dialup users, please!
Would devteam do something to make modemmanager not capturing USB-modem,
if it is not GSM one?
--
Can't use USB/PL2303-attached Zyxel Omni Mini with non-root user
https://bugs.launchpad.net/bugs/482971
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