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by gkaiseril
Wed Apr 17, 2019 9:51 pm
Forum: The MagPi
Topic: Errors in An Introduction to C & GUI Programming.
Replies: 13
Views: 356

Re: Errors in An Introduction to C & GUI Programming.

The code as provided compiles without error and even runs without reporting an error.
by gkaiseril
Wed Apr 17, 2019 9:19 pm
Forum: Troubleshooting
Topic: log in not starting raspberry pi with prynth?
Replies: 3
Views: 39

Re: log in not starting raspberry pi with prynth?

When the Pi is set to boot into the command line, one can use the command:

startx

to start the provided desktop.

The command line command:

man startx

will provide more information about this command.
by gkaiseril
Wed Apr 17, 2019 3:46 pm
Forum: The MagPi
Topic: Source Code for "An Introduction to C & GUI Programming"
Replies: 3
Views: 117

Re: Source Code for "An Introduction to C & GUI Programming"

The PDF format also allows the attachment of files to a PDF, so it is possible to add the a text file of the code to the PDF. It is best to save the files in a format other then a zip compressed file since the PDF format includes zip compression methods for the internal storage of objects withing th...
by gkaiseril
Tue Apr 16, 2019 8:17 pm
Forum: Troubleshooting
Topic: Boot to terminal
Replies: 4
Views: 97

Re: Boot to terminal

Your son's modifications appears to have prevented a full boot or pause in the boot process. I would try to undo the changes and see if the system will boot. If not, then load the OS onto an SD card and start over. Before changing any configuration setting it is a good idea to make a clone or backup...
by gkaiseril
Wed Apr 10, 2019 8:04 pm
Forum: Off topic discussion
Topic: Can I use Pi-Top OS without Pi-top Hardware
Replies: 15
Views: 387

Re: Can I use Pi-Top OS without Pi-top Hardware

Yes you can. The Polaris OS is Raspbian with some additional software and different repositories. You can search the RPF repositories for Pi-Top and there will be a return item that can be installed. There is a reason that Polaris is freely downloadable and uses the GPL licensing.
by gkaiseril
Wed Apr 10, 2019 7:49 pm
Forum: Advanced users
Topic: wireless interface frequency range
Replies: 3
Views: 133

Re: wireless interface frequency range

There are a lot of things that can ca effect a wireless connection. There is the structure of the walls in which the system is located. The radio interference in tn he area. Other electrical noise from power lines, machinery, etc. Location and orientation of the computer. The final answer is to test...
by gkaiseril
Tue Apr 09, 2019 10:13 pm
Forum: Off topic discussion
Topic: Can I use Pi-Top OS without Pi-top Hardware
Replies: 15
Views: 387

Re: Can I use Pi-Top OS without Pi-top Hardware

The included learning system of programming and electronics. The computers can include a breadboard area for prototyping in a ore unified system than just a Pi and a breadboard. It might make an easier sell to some school boards or school decision makers.
by gkaiseril
Tue Apr 09, 2019 9:53 pm
Forum: Off topic discussion
Topic: Can I use Pi-Top OS without Pi-top Hardware
Replies: 15
Views: 387

Re: Can I use Pi-Top OS without Pi-top Hardware

ceed I see nothing that should prevent one from running Polaris on a Pi. CEED Universe install explains how to install the CEED Universe on a Pi. Even the Inventors Kit can be used with the Pi. You can even download in a PDF format the additional cutouts to use in the games included as part of CEED....
by gkaiseril
Mon Apr 01, 2019 8:52 pm
Forum: Off topic discussion
Topic: 1st April arrived early this year...
Replies: 23
Views: 1089

Re: 1st April arrived early this year...

Carefully check the day of the week.

+13 hour difference
by gkaiseril
Mon Apr 01, 2019 7:07 pm
Forum: Off topic discussion
Topic: 1st April arrived early this year...
Replies: 23
Views: 1089

Re: 1st April arrived early this year...

No, it is April 1st there. Kiritimati is 13 hours ahead of London, not behind. When it is midnight in London on April 1st, it is 1:00 pm April 1st in Kiritimati or it has been April 1st for 13 hours there.

World Meeting Planner
by gkaiseril
Mon Apr 01, 2019 5:49 pm
Forum: Off topic discussion
Topic: 1st April arrived early this year...
Replies: 23
Views: 1089

Re: 1st April arrived early this year...

At the time of writing (approx 08.00 hrs BST on Sunday 31st March in the UK) I don't think the date has rolled over to April 1st anywhere on the globe yet.
Kintimati, Christmas Island has a timezone offset of +14 from UTC while London on BST is only +1. That is a 13 hour time difference.
by gkaiseril
Sun Mar 31, 2019 5:36 pm
Forum: General discussion
Topic: Will not accept Desktop Command
Replies: 7
Views: 150

Re: Will not accept Desktop Command

Putty is a terminal emulator and accesses the remote system's command line. If you want the GUI desktop, then you need to use a different program. VNC is included with the Raspberry Pi desktop at no cost and VNC allows up to 5 non-Pi installs for a user. So you can set your Pi to start with VNC acti...
by gkaiseril
Wed Mar 27, 2019 7:44 pm
Forum: Beginners
Topic: Tip for command line / terminal use
Replies: 25
Views: 5901

Re: Tip for command line / terminal use

'history' works for me in bash. To see them one by one use the up arrow command. One can read more about by using the man history command. Difference between sh and bash will explain the difference between bash and the shells. The man command will be with your system even when not connected to the i...
by gkaiseril
Wed Mar 27, 2019 7:27 pm
Forum: Beginners
Topic: Is there a terminal command to change the font type?
Replies: 1
Views: 62

Re: Is there a terminal command to change the font type?

See How to set/change LXTerminal font for standard user? The easiest way is to use the menu options available to LXTerminal and the font will be settable from a drop down list of possible fonts. One could edit the file ~/.config/lxterminal/lxterminal.conf but you would need to know the correct name ...
by gkaiseril
Wed Mar 27, 2019 2:21 pm
Forum: Troubleshooting
Topic: Is the wifi of my Raspberry 3b+ dead?
Replies: 4
Views: 99

Re: Is the wifi of my Raspberry 3b+ dead?

Using the command line I would read the manual pages for rfkill

man rfkill

There is the "unblock" option which should undo your previous "block" command.
by gkaiseril
Sun Mar 24, 2019 5:03 pm
Forum: Troubleshooting
Topic: Not Booting
Replies: 4
Views: 115

Re: Not Booting

A couple of things I have found helpful in installing software . 1.Printout the instructions. 2. Read and reread the instructions. 3. Make a check list of actions to take. 4. Install following your check list. 5. As each step is taken check off the step and check for any errors. 6. It is best to be ...
by gkaiseril
Sun Mar 17, 2019 6:52 pm
Forum: Troubleshooting
Topic: sudoers.d error and I'm a complete noob.
Replies: 1
Views: 41

Re: sudoers.d error and I'm a complete noob.

Have you read the documentation on Securing your Raspberry Pi?.

Have you setup your default user in the groups sudo snf admn?


What does each of the default groups on the Raspberry Pi do?
by gkaiseril
Sun Mar 17, 2019 6:28 pm
Forum: Troubleshooting
Topic: model 3 B+ turned off while installing raspbian
Replies: 33
Views: 534

Re: model 3 B+ turned off while installing raspbian

I you have a friend that is successfully running a Raspberry Pi you might want to get together and try to see why your setup and equipment does not work as expected. The yellow lighting bolt indicates a low voltage situation at the power input section of the Pi. This means the voltage coming off the...
by gkaiseril
Sat Mar 16, 2019 3:48 pm
Forum: Beginners
Topic: Can't connect anymore
Replies: 1
Views: 127

Re: Can't connect anymore

You may also have to set the computer's name or verify the name, crate the SSH and the wps_supplicant.cnfg files. You either manually set your IP address or get the auto assivned IPaddress from uour router Have you tried the NextCloud forums to see how to disable the certificates? Obtaining the IP a...
by gkaiseril
Sat Mar 16, 2019 3:17 pm
Forum: General discussion
Topic: Identifying a board..
Replies: 15
Views: 576

Re: Identifying a board..

Just set up a Libre Office database to track your Pis information and set the serial number as a key value and set it to be a unique key. This will tell you if the serial number has already been entered into your database when you try to add the serial number.
by gkaiseril
Sat Mar 16, 2019 3:09 pm
Forum: General discussion
Topic: Install EXTRA screensavers
Replies: 5
Views: 295

Re: Install EXTRA screensavers

If you use the "apt-get install" or "apt install" commands the apt program will display a series of lines stating if the program was found in one of the repositories or not. If found each file of the package that is down loaded will be listed along with its status. Then a series of lines will displa...
by gkaiseril
Fri Mar 15, 2019 6:55 pm
Forum: Official Foundation Display
Topic: what is the usb output on the motherboard of the 7 inch display?
Replies: 6
Views: 442

Re: what is the usb output on the motherboard of the 7 inch display?

I use the RPF power supply and a Y micro USB cord to connect both the Pi and the screen. If I use the jumpers then I plug the power supply into the Pi. If I power the display and use the jumper wires to power the Pi I get lower voltage warnings.
by gkaiseril
Fri Mar 15, 2019 6:51 pm
Forum: General discussion
Topic: Install EXTRA screensavers
Replies: 5
Views: 295

Re: Install EXTRA screensavers

Have you tried using Aptitude or Synaptic to search for xscreen saver?

What Operating System and version are you running?

Are you getting any errors during the install?
by gkaiseril
Fri Mar 15, 2019 6:49 pm
Forum: General discussion
Topic: Identifying a board..
Replies: 15
Views: 576

Re: Identifying a board..

That is why one should track their Pi model and serial numbers to catch such possible errors. If one is found do not use it or alter it if possible. Commercial organizations that run large computer networks deal with duplicated MAC address all the time. This happens because multiple sources are crea...

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