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<zmatt>
jkridner: heh, we just encountered a pretty bizarre issue with the eMMC of an old beaglebone: "mmc1: switch to bus width 8 failed" ... so it ends up having only half the normal amount of bandwidth. no idea if it was like that from the start or if it spontaneously developed this issue
<Guest15>
zmatt: thanks for all the help today. Much appreciate.
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<keesj1>
Hi
<keesj1>
I am a bit confused on the JTAG status for the ai-64 board.
<keesj1>
From the images see and part of the documentation I can clearly see a TAG Connect header but
<keesj1>
is the issue open because it does not work , because it was untested or because .. something else?
<keesj1>
Yy
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<Pete90>
Question about debian 11, after connecting to wifi it sometimes gets forgotten, I'll work hours and then try installing something that fails because the wifi is no longer connected, but it isn't just disconnected, network 1 is no longer there and needs to be set up again, does anyone have a remedy for this
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<zmatt>
o.O
<zmatt>
I wonder if he just added it via wpa_cli without actually saving it to config
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<Pete90>
Has anyone been able to successfully forward X over ssh on a BB Blue? I'm trying to get X11vncworking but that keeps failing to start and TightVNC also did not start
<zmatt>
ehh, if you're using vnc then you don't need or want x forwarding and vice versa
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<Pete90>
Well I'm trying to use vnc but it doesn't want to start a server
<zmatt>
also, that guide you linked is really really old
<zmatt>
the screenshot shows debian 7 from 2014
<Pete90>
regarding wifi question, didn't know about having to save config and it isn't listed in the snapshot
<zmatt>
I generally configure wifi networks in the config file directly and then use the "reconfigure command in wpa_cli ... I don't even know how to dynamically add a wifi network via wpa_cli
<zmatt>
btw, do you actually need a gui? what are you trying to do?
<Pete90>
Ohh shoot, I though most of it would hav remained the same, tight vnc gave this error message https://pastebin.com/2GvK6TFZ
<Pete90>
Got the webcam I need so I wanted to test it on the board
<Pete90>
Will use that for the eduroam one then
<zmatt>
okay but installing an entire x11 desktop just to confirm a webcam is working seems a bit overkill
<Pete90>
whats the command for reconfigure?
<Pete90>
Didn't know it was full desktop, was kind of looking for the fastest way of confirm it works
<zmatt>
I'm not seeing any error in your paste, it looks like you started it successfully... and the fact that the second one says it created BeagleBone:2 suggests you now have two of 'em running
<zmatt>
what do you mean? reconfigure *is* the command (in wpa_cli)
<Pete90>
did kill them at the end, vncviewer gave an error that it couldn't connect
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<zmatt>
I'm stlil just assuming you're using wpa_cli to configrue wifi... you neither confirmed or denied it :P
<Pete90>
so "wpa_cli reconfigure" ?
<zmatt>
yeah, or start wpa_cli interactively and then enter reconfigure
<zmatt>
not sure why you wouldn't be able to connect if it started successfully
<zmatt>
I haven't used vnc in a very long time
<zmatt>
if I wanted to test a webcam I'd probably look for something that can stream the webcam
<zmatt>
*test a webcam on a beaglebone
<Pete90>
Mmmm yeah that is probably better
<Pete90>
Still need to get ros_bridge up and running but I've had no luck since Debian didn't package it apparently, and the versions aren't exactly compatible
<Pete90>
They also don't say how to build from source if necessary
<zmatt>
well there's nothing to build, it's pure python
<Pete90>
How do I get it running though, I'm not even sure how to work with this version of ros
<zmatt>
it looks like each of the subpackages has a CMakeLists.txt hence can presumably be installed using cmake
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<Pete90>
I found the package on github so I guess using that?
<zmatt>
you'd need to do it on the subpackages in the right order since they're interdependent... maybe ROS has some way of doing this more conveniently but I don't know anything about ROS
<zmatt>
you can clone a specific github branch by passing the -b BRANCHNAME option git clone
<zmatt>
or if you already cloned it, "git checkout BRANCHNAME" inside the git worktree should create a new local branch tracking the remote branch with the same name
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<Pete90>
One last time, hopefully my router stays stable now
<zmatt>
it seems that simply running catkin_make in the git repo should do the trick
<zmatt>
btw for streaming a webcam you can use ffmpeg or cvlc (commandline version of vlc) .. although both of these have a metric fuckton of dependencies unfortunately
<Pete90>
Shot thanks, how do I select which branch to pull?
<zmatt>
I just answered that
<Pete90>
Yeah my wifi kicked me off
<Pete90>
Never mind the link from earlier works regardless
<zmatt>
I was about to say... if you lost the link, the channel topic mentions how to find the logs :P
<zmatt>
(both the old logs (of #beagle on freenode) and the new real-time one)
<Pete90>
Will definitely be using this in the future
<Pete90>
cvlc I guess? and remove afterwards
<zmatt>
cvlc is not a separate package but part of the vlc package
<zmatt>
(you can find instructions on how to use cvlc or ffmpeg to stream a webcam by googling)
<Pete90>
Awesome thanks
<Pete90>
It doesn't work in the repo itself, there isn't a source folder, should I do individual folders then? Starting at "rosbridge_library"?
<zmatt>
I don't actually know how catkin works, I just got the impression it's supposed to work based on a 10 second glance at the documentation
<Pete90>
Well I didn't create a workspace, cause I don't have the Melodic file path for the bash
<zmatt>
my impression was that the git repo is a valid workspace
<Pete90>
There may be a workaround, let me chck
<zmatt>
my impression may simply be wrong
<Pete90>
How can I check where this equivalent would be? "source /opt/ros/noetic/setup.bash"
<Pete90>
There is not ros in /opt
<zmatt>
I don't know what that is, does, or why you'd need it
<zmatt>
that's probably just needed when it's installed into a non-standard place like /opt
<Pete90>
Create a workspace, apparently you need the workspace to build a package
<zmatt>
it looks like a workspace is just a directory with a "src" subdirectory
<zmatt>
i.e. the "mkdir -p ~/catkin_ws/src" is how they create a workspace
<zmatt>
then copy or symlink the packages (rosapi, rosbridge_{library,msgs,server,suite}) into that src subdirectory
<zmatt>
and run catkin_make while in the workspace directory (~/catkin_ws if you follow their example)
<zmatt>
if that still doesn't work, you should probably try asking in a ROS community since, like I said, I don't actually know anything beyond what I'm reading in their documentation _right now_ :P
<zmatt>
yeah the "source /opt/ros/melodic/setup.bash" is irrelevant, the line above it that's just to setup the environment... that's not needed when using the native debian packages since they're part of your system environment
<Pete90>
Symlink would probably be preferred '=D , do I do it folder wise? And I'll move over in a bit but I'm not too sure they'll have advice for Beaglebones
<zmatt>
it shouldn't matter that you're using a beaglebone
<zmatt>
just that you're using the native debian bullseye packages
<Pete90>
Okay yeah fair, I'll check now
<zmatt>
(because that seemed the easiest way to get things working on bullseye/armhf)
<Pete90>
How do I symlink one folder into another, like only the src subfolders match
<zmatt>
looks like it needs gmock for testing... so I guess either disable testing or install libgmock-dev
<zmatt>
don't forget to symlink all of the packages to src/
<zmatt>
not just rosapi
<Pete90>
ohhh okay I'll link them all now, though I had to do it one-by-one
<zmatt>
no, rosapi depends on rosbridge_library so it can't be built first anyway, but the whole point of using catkin was that it's supposed to figure stuff like that out :P
<Pete90>
used this command "ln -s path/to/rosbridge_suite/ros* ./", seems to be doing something now
<zmatt>
anyway, I got stuff to do, if it fails on other dependencies try figuring out the right package name to install yourself (e.g. using apt-cache search)
<Pete90>
100% thanks a lot for the help
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<m-atoms>
beaglebone support page still points to freenode, probably should fix that
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