ModemManager seizes ttyS0, preventing use by other apps
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
modemmanager (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
ModemManager prevents, in my case, the use of ttyS0 by efax. When efax attempts to connect to my POTS line with my USR5610 modem via ttyS0, it gets "Warning - ttyS0 locked or busy - waiting"
Another user alerted me to the workaround, which is to remove ModemManager with Synaptic. Removal plus restart puts efax back in business. Of course, that puts ModemManager out of business in whatever it is supposed to do!
I presume there may be programs other than efax also affected by the same problem. I'd report it as a bug in ModemManager if I could get the Ubuntu Bug System to work, but it seems to be its own bug!
Jack
PS Just found a way to report a bug - Ask a question and then click "Create Bug Report".
Thank you for taking the time to report this bug and helping to make Ubuntu better. This bug did not have a package associated with it, which is important for ensuring that it gets looked at by the proper developers. You can learn more about finding the right package at https:/ /wiki.ubuntu. com/Bugs/ FindRightPackag e , so I have classified this bug as a bug in modemmanager package.