Ubuntu Serial Port Sniffer Linux Ubuntu
Major Rowley
As an affected user on one system I do not think that rolling back the drivers is a good idea, since the 460 server driver without the bug does exist. Then all those not affected would also end up with an older driver.
As an affected user on one system I do not think that rolling back the drivers is a good idea, since the 460 server driver without the bug does exist. Then all those not affected would also end up with an older driver.
But maybe ubuntu-driver or whatever package could be changed to install 460 server for those with displayport. Users could then still upgrade if they have a non bugged DisplayPort system.
I have a Dell WD19TB docking station and an Inspiron 16 plus notebook with ubuntu 20.04 installed. I have an external LG monitor connected to the HDMI port on the docking station - which is connected to the thunderbolt port of the laptop. The OS cannot detect the external screen at all when it's connected through the docking station - but it does detect it when the HDMI cable is plugged directly into the laptop. I've updated Linux firmware for the docking station using the .bin file on this link:
-us/product-support/product/dell-wd19tb-dock/drivers
But that hasn't changed anything. Again this seems to be an issue with the docking station on Linux (on windows the screen is detected fine). I really really really would appreciate the help on this.
For me what worked was plugging the dock TB16 out of my computer, plugging the dock out of the power supply and put it back. Now, P3222QE monitor is detected through the dock (and the other external monitor is detected no more, they've been swapped).
I am currently working on my custom robot project, for which I need my robot to communicate with the ROS running on a linux-ubuntu PC, so I need a Serial library running on linux Pc which is capable of communicating with the ROS and the Robot.
That package is essentially a translator between ROS and raw serial. Have you checked that all your serial port settings are correct? Can you use a port monitor to check if the correct data are being sent and returned from the uC?
strange observation is uC will send data every 100ms which I cannot see on ROS pc, but when I connect the serial port through the H-term (UART visualiser link: -hammer.info/terminal/) and click on "connect" I can see data on ROS PC also.
publishing Odometry messages and subscribing to Twist messages is fine.But the question is how to get the data from the controller to the ROS PC over UART, once I have the data to ROS-PC I can manipulate the data as required.
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This guide shows you workflow examples that configure a service container using the Docker Hub postgres image. The workflow runs a script that connects to the PostgreSQL service, creates a table, and then populates it with data. To test that the workflow creates and populates the PostgreSQL table, the script prints the data from the table to the console.
You should be familiar with how service containers work with GitHub Actions and the networking differences between running jobs directly on the runner or in a container. For more information, see "About service containers."
Configuring jobs to run in a container simplifies networking configurations between the job and the service containers. Docker containers on the same user-defined bridge network expose all ports to each other, so you don't need to map any of the service container ports to the Docker host. You can access the service container from the job container using the label you configure in the workflow.
This workflow configures a job that runs in the node:10.18-jessie container and uses the ubuntu-latest runner as the Docker host for the container. For more information about the node:10.18-jessie container, see the node image on Docker Hub.
The workflow configures a service container with the label postgres. All services must run in a container, so each service requires that you specify the container image. This example uses the postgres container image, provides the default PostgreSQL password, and includes health check options to make sure the service is running. For more information, see the postgres image on Docker Hub.
The client.js script looks for the POSTGRES_HOST and POSTGRES_PORT environment variables to create the client. The workflow sets those two environment variables as part of the "Connect to PostgreSQL" step to make them available to the client.js script. For more information about the script, see "Testing the PostgreSQL service container."
The hostname of the PostgreSQL service is the label you configured in your workflow, in this case, postgres. Because Docker containers on the same user-defined bridge network open all ports by default, you'll be able to access the service container on the default PostgreSQL port 5432.
When you run a job directly on the runner machine, you'll need to map the ports on the service container to ports on the Docker host. You can access service containers from the Docker host using localhost and the Docker host port number.
You can test your workflow using the following script, which connects to the PostgreSQL service and adds a new table with some placeholder data. The script then prints the values stored in the PostgreSQL table to the terminal. Your script can use any language you'd like, but this example uses Node.js and the pg npm module. For more information, see the npm pg module.
You can modify client.js to include any PostgreSQL operations needed by your workflow. In this example, the script connects to the PostgreSQL service, adds a table to the postgres database, inserts some placeholder data, and then retrieves the data.
The script creates a new connection to the PostgreSQL service, and uses the POSTGRES_HOST and POSTGRES_PORT environment variables to specify the PostgreSQL service IP address and port. If host and port are not defined, the default host is localhost and the default port is 5432.
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