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by klricks
Tue Jun 15, 2021 5:19 pm
Forum: Troubleshooting
Topic: RPI Red blinking
Replies: 1
Views: 60

Re: RPI Red blinking

I am currently working with a pi that has a blinking red light whenever I plug it into a power supply. I am now checking to see if I accidentally shorted anything by looking at the voltage between the 5V and ground GPIO pin. The voltage readings are all over the place, at times they are 2V, and oth...
by klricks
Tue Jun 15, 2021 4:50 pm
Forum: Beginners
Topic: Desktop Executable
Replies: 2
Views: 108

Re: Desktop Executable

I'm trying to create a desktop executable to launch the Pi Camera module. I've followed the instructions and it's not working. What did I get wrong? [Desktop Entry] Name=Launch Night Vision Comment=Please work Icon=/usr/share/pixmaps/openbox.xpm Exec=lxterminal -t Raspivid -t 0 -b 25000000 -fps 30 ...
by klricks
Tue Jun 15, 2021 4:10 pm
Forum: Troubleshooting
Topic: Menu bar
Replies: 1
Views: 59

Re: Menu bar

Is the raspberry icon missing (invisible)? if so what happens when you click on the blank spot?

Also FYI pressing the raspberry logo key on the keyboard should bring up the menu.
by klricks
Mon Jun 14, 2021 9:01 pm
Forum: General discussion
Topic: Help starting rakarrack with starup script
Replies: 5
Views: 215

Re: Help starting rakarrack with starup script

If your application requires desktop GUI then better to use autostart instead of cron.
See this for autostart details: viewtopic.php?f=66&t=294014
by klricks
Mon Jun 14, 2021 4:53 pm
Forum: Troubleshooting
Topic: Pi 3b+ Is not working.
Replies: 4
Views: 119

Re: Pi 3b+ Is not working.

Disconnect the Pi. Wait 48hrs. Try again. The Pi3B+ has a polyfuse on board to protect it, but it takes some time to recover after being triggered. No guarantee, but a good chance of a full recovery. The OP said the Power LED is working so the fuse is not blown. In my experience once the fault cond...
by klricks
Sat Jun 12, 2021 6:33 pm
Forum: Troubleshooting
Topic: safe shutdown after booting RPi OS blindly (no display, no SSH)
Replies: 6
Views: 281

Re: safe shutdown after booting RPi OS blindly (no display, no SSH)

I would have just pulled the power and took my chances...

Ctrl + Alt + T will bring up a Lxterminal where you can 'blind type' the shutdown command.

Or

Press the [Logo Key] then [UP] arrow once then [Enter] twice.
by klricks
Thu Jun 10, 2021 7:28 pm
Forum: Beginners
Topic: Salvaged Jail Cell Phone Kiosk and Raspberry Pi
Replies: 9
Views: 291

Re: Salvaged Jail Cell Phone Kiosk and Raspberry Pi

alphanumeric wrote:
Thu Jun 10, 2021 7:19 pm
Can't view the images so can't comment.
Try right click on the image text then select: Open image in new tab
by klricks
Tue Jun 08, 2021 8:47 pm
Forum: General discussion
Topic: Autorun icons from GUI that use USB drives (solved)
Replies: 10
Views: 269

Re: Autorun icons from GUI that use USB drives

Use the full path.... not ~/.

Code: Select all

@lxterminal -e bash /home/pi/h.sh
by klricks
Tue Jun 08, 2021 8:43 pm
Forum: General discussion
Topic: Autorun icons from GUI that use USB drives (solved)
Replies: 10
Views: 269

Re: Autorun icons from GUI that use USB drives

... However it looks like my use of 'pcmanfm /media/pi/t200' is still wrong in autostart although ok from CLI. ... pcmanfm is one GUI program that gives trouble when started directly in autostart. I believe this is due to this command in autostart: @pcmanfm --desktop --profile LXDE-pi which is bein...
by klricks
Tue Jun 08, 2021 6:04 pm
Forum: General discussion
Topic: Autorun icons from GUI that use USB drives (solved)
Replies: 10
Views: 269

Re: Autorun icons from GUI that use USB drives

As I already said.... Do not attempt to use the sleep command directly in autostart!
All commands in autostart are executed independently in parallel, so the sleep command will execute by itself and do nothing...

You must create a bash script then call the bash script from the autostart file.
by klricks
Tue Jun 08, 2021 5:28 pm
Forum: General discussion
Topic: Autorun icons from GUI that use USB drives (solved)
Replies: 10
Views: 269

Re: Autorun icons from GUI that use USB drives

Try adding a sleep delay. To do that you will need to create a bash script and then call the bash file from autostart: (Do not attempt to put the sleep command directly in the autostart file, it won't work...) #!/bin/bash sleep 15 # adjust time as needed lxterminal -e bash /media/pi/T200/h.sh FYI - ...
by klricks
Tue Jun 08, 2021 12:08 pm
Forum: Networking and servers
Topic: Connecting multiple raspberry pis to wifi
Replies: 5
Views: 189

Re: Connecting multiple raspberry pis to wifi

Check your router setup and make sure you have enabled a sufficiant IP address range that will handle all the devices that you expect to connect concurrently to the router.
by klricks
Tue Jun 08, 2021 1:25 am
Forum: General discussion
Topic: How do I check if file system is extended to full capacity
Replies: 3
Views: 178

Re: How do I check if file system is extended to full capacity

What does this command show?

Code: Select all

df -h
Also you can look at the bottom of a File Manager window.
by klricks
Mon Jun 07, 2021 4:38 pm
Forum: Raspberry Pi OS
Topic: How to create custom menu
Replies: 2
Views: 105

Re: How to create custom menu

Hi, I use raspberry pi 3b+ and installed raspberry pi os with desktop. I know using terminal and typing 'sudo apt update' and 'sudo apt upgrade', we can update to the latest version. I would like to create a menu for this rather than typing these commands. How to create it. Any help would be apprec...
by klricks
Mon Jun 07, 2021 1:45 pm
Forum: Python
Topic: Python Desktop application on boot!?
Replies: 3
Views: 168

Re: Python Desktop application on boot!?

When you have your new Python code running you can use autostart: viewtopic.php?f=66&t=294014
by klricks
Fri Jun 04, 2021 3:26 pm
Forum: Troubleshooting
Topic: lxsession folder missing?
Replies: 8
Views: 235

Re: lxsession folder missing?

FYI - Here is a guide 'sticky' that explains how to use autostart: viewtopic.php?f=66&t=294014
by klricks
Wed Jun 02, 2021 12:00 am
Forum: Advanced users
Topic: MAC Addresses
Replies: 6
Views: 286

Re: MAC Addresses

MAC addresses are hardware dependent and do not go with the SD card.
Note that Ethernet and WIFI each have their own unique MAC address.
by klricks
Tue Jun 01, 2021 1:16 pm
Forum: Beginners
Topic: "find" doesn't find a certain file
Replies: 103
Views: 2884

Re: "find" doesn't find a certain file

ok, thank you, I really didn't understand that / thing. Now I even get dozens of "no permissions" notifications (why?), but at the very end, in the last line, the searched file is found as expected! When using / if you use sudo with find you will get a lot less of the "no permissions...
by klricks
Tue Jun 01, 2021 1:43 am
Forum: Beginners
Topic: Application autostarting AND ~/.xsessionrc file??
Replies: 10
Views: 303

Re: Application autostarting AND ~/.xsessionrc file??

............. GOT IT WORKING! Just created another desktop file, put in my command as exec and it's working. . Glad you got it working. I am not sure how the system decides which .desktop file to run first? Or if it matters? Be sure to test with doing logout and login, rebooting and full power cycl...
by klricks
Tue Jun 01, 2021 1:29 am
Forum: Beginners
Topic: Application autostarting AND ~/.xsessionrc file??
Replies: 10
Views: 303

Re: Application autostarting AND ~/.xsessionrc file??

Did you create the .xsessionrc file and attempt to load something with it? (From your posts not exactly clear what you did) I did some experimenting and found that it works, BUT, any program(s) started in .xsessionrc must be appended with a & character to make sure the program(s) are run in the ...
by klricks
Mon May 31, 2021 9:36 pm
Forum: Beginners
Topic: Need help with VNC set up
Replies: 8
Views: 306

Re: Need help with VNC set up

Udab wrote:
Mon May 31, 2021 9:28 pm
I just connect it to internet via WiFi . I have set the VNC .
Shouldnt be able to run ?
As mentioned above you need to use sudo raspi-config to set a fixed screen resolution. (Choose anything other than default monitor).
by klricks
Mon May 31, 2021 7:41 pm
Forum: Beginners
Topic: Application autostarting AND ~/.xsessionrc file??
Replies: 10
Views: 303

Re: Application autostarting AND ~/.xsessionrc file??

Did you ever do sudo startx?
If so try:

Code: Select all

sudo chown pi:pi .Xauthority
If that does not help then probably time to reinstall the OS.

Wolfram is part of the Mathematica software package and is not related to your issue.
by klricks
Mon May 31, 2021 6:36 pm
Forum: Beginners
Topic: Application autostarting AND ~/.xsessionrc file??
Replies: 10
Views: 303

Re: Application autostarting AND ~/.xsessionrc file??

Machria wrote:
Mon May 31, 2021 6:10 pm
.... My only access to the pi right now is thru ssh with the pi at the login screen.
...
Then use nano editor via ssh to undo what you did......
by klricks
Mon May 31, 2021 6:04 pm
Forum: Beginners
Topic: Application autostarting AND ~/.xsessionrc file??
Replies: 10
Views: 303

Re: Application autostarting AND ~/.xsessionrc file??

..... So questions are: 1. How do I remove the app from autostart? 2. How do I add an xrandr command to a .xsessionrc file... ? Thanks in advance for any help! Just exit your application and edit autostart. (If you don't see the normal desktop then see the link below). Not sure why you think you ne...

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