Serial Port used in Virtual Box “stalls”
i have the following setup:
Windows Host has a Com Port "COM3". (The port is a high quality USB to Serial Converter Cable)
This port is made available to a virtual Box VM running Ubunutu 16.04.
The port is used to connect to a weighing appliance,
the connection basically works like this:
You connect to the serial port (e.g. using PicoCom under Linux or Putty under Windows)
You type a command (e.g. "<RN>") into the console and the appliance echos the weight into the console.
Now here is the problem:
The connection works fine for a certain time and then the system stops responding.
- You get a connect when opening the device
- You can still type your command
- But you dont get any response
When this problem first occurrs it does so until the VM is shut down and booted again.
Rebooting from the command line does not fix it.
I cannot see any suspicious messages in the unbuntu syslog and i cant see any other logfiles that have changed that look relevant to me.
I dont think the converter cable is the source of the problem because when i shut down the VM and open the serial port with putty it works fine.
I am looking for a way to get rid of the problem or for a way to fix it without shutting down the whole VM
Thanks in advance, folks!
ubuntu virtualbox serial-port
asked Nov 23 '18 at 9:54
Jens Kisters
13
add a comment |
i have the following setup:
Windows Host has a Com Port "COM3". (The port is a high quality USB to Serial Converter Cable)
This port is made available to a virtual Box VM running Ubunutu 16.04.
The port is used to connect to a weighing appliance,
the connection basically works like this:
You connect to the serial port (e.g. using PicoCom under Linux or Putty under Windows)
You type a command (e.g. "<RN>") into the console and the appliance echos the weight into the console.
Now here is the problem:
The connection works fine for a certain time and then the system stops responding.
- You get a connect when opening the device
- You can still type your command
- But you dont get any response
When this problem first occurrs it does so until the VM is shut down and booted again.
Rebooting from the command line does not fix it.
I cannot see any suspicious messages in the unbuntu syslog and i cant see any other logfiles that have changed that look relevant to me.
I dont think the converter cable is the source of the problem because when i shut down the VM and open the serial port with putty it works fine.
I am looking for a way to get rid of the problem or for a way to fix it without shutting down the whole VM
Thanks in advance, folks!
ubuntu virtualbox serial-port
asked Nov 23 '18 at 9:54
Jens Kisters
13
I suspect the problem is somehow related to the power saving features of the Host Win10 system. I have deactivated stand-by and the response is stable so far.
– Jens Kisters
Nov 23 '18 at 12:26
add a comment |
i have the following setup:
Windows Host has a Com Port "COM3". (The port is a high quality USB to Serial Converter Cable)
This port is made available to a virtual Box VM running Ubunutu 16.04.
The port is used to connect to a weighing appliance,
the connection basically works like this:
You connect to the serial port (e.g. using PicoCom under Linux or Putty under Windows)
You type a command (e.g. "<RN>") into the console and the appliance echos the weight into the console.
Now here is the problem:
The connection works fine for a certain time and then the system stops responding.
- You get a connect when opening the device
- You can still type your command
- But you dont get any response
When this problem first occurrs it does so until the VM is shut down and booted again.
Rebooting from the command line does not fix it.
I cannot see any suspicious messages in the unbuntu syslog and i cant see any other logfiles that have changed that look relevant to me.
I dont think the converter cable is the source of the problem because when i shut down the VM and open the serial port with putty it works fine.
I am looking for a way to get rid of the problem or for a way to fix it without shutting down the whole VM
Thanks in advance, folks!
ubuntu virtualbox serial-port
asked Nov 23 '18 at 9:54
Jens Kisters
13
i have the following setup:
Windows Host has a Com Port "COM3". (The port is a high quality USB to Serial Converter Cable)
This port is made available to a virtual Box VM running Ubunutu 16.04.
The port is used to connect to a weighing appliance,
the connection basically works like this:
You connect to the serial port (e.g. using PicoCom under Linux or Putty under Windows)
You type a command (e.g. "<RN>") into the console and the appliance echos the weight into the console.
Now here is the problem:
The connection works fine for a certain time and then the system stops responding.
- You get a connect when opening the device
- You can still type your command
- But you dont get any response
When this problem first occurrs it does so until the VM is shut down and booted again.
Rebooting from the command line does not fix it.
I cannot see any suspicious messages in the unbuntu syslog and i cant see any other logfiles that have changed that look relevant to me.
I dont think the converter cable is the source of the problem because when i shut down the VM and open the serial port with putty it works fine.
I am looking for a way to get rid of the problem or for a way to fix it without shutting down the whole VM
Thanks in advance, folks!
ubuntu virtualbox serial-port
ubuntu virtualbox serial-port
asked Nov 23 '18 at 9:54
Jens Kisters
13
asked Nov 23 '18 at 9:54
Jens Kisters
13
edited Nov 23 '18 at 12:28
asked Nov 23 '18 at 9:54
Jens Kisters
13
asked Nov 23 '18 at 9:54
Jens Kisters
13
asked Nov 23 '18 at 9:54
Jens Kisters
13
13
I suspect the problem is somehow related to the power saving features of the Host Win10 system. I have deactivated stand-by and the response is stable so far.
– Jens Kisters
Nov 23 '18 at 12:26
add a comment |
I suspect the problem is somehow related to the power saving features of the Host Win10 system. I have deactivated stand-by and the response is stable so far.
– Jens Kisters
Nov 23 '18 at 12:26
I suspect the problem is somehow related to the power saving features of the Host Win10 system. I have deactivated stand-by and the response is stable so far.
– Jens Kisters
Nov 23 '18 at 12:26
I suspect the problem is somehow related to the power saving features of the Host Win10 system. I have deactivated stand-by and the response is stable so far.
– Jens Kisters
Nov 23 '18 at 12:26
add a comment |
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I suspect the problem is somehow related to the power saving features of the Host Win10 system. I have deactivated stand-by and the response is stable so far.
– Jens Kisters
Nov 23 '18 at 12:26