cheers the bug is no more present after latest kernel update
On Wed, Oct 21, 2015 at 8:50 AM, Sebastian Unger <email address hidden>
wrote:
> Same here. Could not reproduce the issue on 3.13.0-66.108 any more.
> Cheers
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1501345
>
> Title:
> linux-image-3.13.0-65-generic breaks serial communication
>
> Status in linux-lts-trusty package in Ubuntu:
> Confirmed
>
> Bug description:
> Today after updating to the linux-image-3.13.0-65-generic 3.13.0-65
> Kernel on Lubuntu 14.04.3 LTS two different programs that rely on
> PySerial quit working. miniterm.py and my ROS (Robot Operating System)
> based Python node quit working.
>
> When rebooted and selected 3.13.0-63-generic via GRUB everything
> worked again.
>
> Here are the steps to create the issue with miniterm.py, note that you
> need something connected via a USB to Serial adapter for this to work.
> I am working with a Parallax Activity Board, but an Arduino should
> also exhibit the same behavior.
>
> sudo apt install linux-image-3.13.0-65-generic
> sudo apt install linux-image-extra-3.13.0-65-generic
> reboot
>
> $ miniterm.py /dev/ttyUSB0 115200
> --- Miniterm on /dev/ttyUSB0: 115200,8,N,1 ---
> --- Quit: Ctrl+] | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
>
> --- exit ---
> Exception in thread Thread-1:
> Traceback (most recent call last):
> File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
> self.run()
> File "/usr/lib/python2.7/threading.py", line 763, in run
> self.__target(*self.__args, **self.__kwargs)
> File "/usr/bin/miniterm.py", line 220, in reader
> data = character(self.serial.read(1))
> File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line
> 460, in read
> raise SerialException('device reports readiness to read but returned
> no data (device disconnected?)')
> SerialException: device reports readiness to read but returned no data
> (device disconnected?)
>
> Reverting to the 3.13.0-63 kernel allows miniterm.py and other Python
> Serial based programs to work normally.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1501345/+subscriptions
>
cheers the bug is no more present after latest kernel update
On Wed, Oct 21, 2015 at 8:50 AM, Sebastian Unger <email address hidden>
wrote:
> Same here. Could not reproduce the issue on 3.13.0-66.108 any more. /bugs.launchpad .net/bugs/ 1501345 3.13.0- 65-generic breaks serial communication 3.13.0- 65-generic 3.13.0-65 3.13.0- 65-generic extra-3. 13.0-65- generic python2. 7/threading. py", line 810, in __bootstrap_inner python2. 7/threading. py", line 763, in run target( *self._ _args, **self.__kwargs) miniterm. py", line 220, in reader self.serial. read(1) ) python2. 7/dist- packages/ serial/ serialposix. py", line ('device reports readiness to read but returned /bugs.launchpad .net/ubuntu/ +source/ linux-lts- trusty/ +bug/1501345/ +subscriptions
> Cheers
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https:/
>
> Title:
> linux-image-
>
> Status in linux-lts-trusty package in Ubuntu:
> Confirmed
>
> Bug description:
> Today after updating to the linux-image-
> Kernel on Lubuntu 14.04.3 LTS two different programs that rely on
> PySerial quit working. miniterm.py and my ROS (Robot Operating System)
> based Python node quit working.
>
> When rebooted and selected 3.13.0-63-generic via GRUB everything
> worked again.
>
> Here are the steps to create the issue with miniterm.py, note that you
> need something connected via a USB to Serial adapter for this to work.
> I am working with a Parallax Activity Board, but an Arduino should
> also exhibit the same behavior.
>
> sudo apt install linux-image-
> sudo apt install linux-image-
> reboot
>
> $ miniterm.py /dev/ttyUSB0 115200
> --- Miniterm on /dev/ttyUSB0: 115200,8,N,1 ---
> --- Quit: Ctrl+] | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
>
> --- exit ---
> Exception in thread Thread-1:
> Traceback (most recent call last):
> File "/usr/lib/
> self.run()
> File "/usr/lib/
> self.__
> File "/usr/bin/
> data = character(
> File "/usr/lib/
> 460, in read
> raise SerialException
> no data (device disconnected?)')
> SerialException: device reports readiness to read but returned no data
> (device disconnected?)
>
> Reverting to the 3.13.0-63 kernel allows miniterm.py and other Python
> Serial based programs to work normally.
>
> To manage notifications about this bug go to:
>
> https:/
>