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by knute
Sat Dec 13, 2014 3:28 am
Forum: Graphics, sound and multimedia
Topic: Simply play a slideshow of images from a network drive
Replies: 4
Views: 1603

Re: Simply play a slideshow of images from a network drive

I've got a simple little Java program that will sequence through images in a directory. Even does a crossfade between them. I have no idea what a secure kiosk mode is though.

If you want the code I'll post it tomorrow when I can get at my laptop.
by knute
Thu Dec 11, 2014 4:00 am
Forum: Python
Topic: basic image processing module
Replies: 15
Views: 1906

Re: basic image processing module

You are going to run into some interesting artifacts by scaling an image to 8x8. I'm not a Python programmer so I can't help you with that but it is a simple task in Java to scale an image. What do you need in the end, the RGB values of the 64 pixels?
by knute
Tue Dec 09, 2014 1:52 am
Forum: General discussion
Topic: Up To date guide needed - How do i access Raspberry Pi from
Replies: 6
Views: 792

Re: Up To date guide needed - How do i access Raspberry Pi f

Enable SSH from raspi-config , select item 8, Advanced Options and then A4, Enable SSH. sudo raspi-config Install VNC sudo apt-get install tightvncserver run: tightvncserver as pi, not root, to set up passwords. You don't need the second password. start the server with: vncserver :1 -geometry 1920x1...
by knute
Wed Nov 26, 2014 2:47 am
Forum: Java
Topic: JavaFX?
Replies: 5
Views: 1386

Re: JavaFX? - Solved more or less

So I solved most of my problem, and that is because I was using VNC to look at my Pi desktop not looking at it directly. Apparently JavaFX apps don't run in the same way as Swing apps. They use some sort of full screen/framebuffer mode? Any way my app runs but without the normal windowing features. ...
by knute
Wed Nov 26, 2014 1:16 am
Forum: Java
Topic: JavaFX?
Replies: 5
Views: 1386

Re: JavaFX?

Both Pis have same problem, just hang. I've tried setting 256MB video memory, I've tried three different SD cards but all with Raspbian and two versions of Java, 1.8.0 and 1.8.0_6. Swing programs run great but FX programs just hang.

I'd love some ideas?

Thanks,
by knute
Wed Nov 26, 2014 12:42 am
Forum: Java
Topic: JavaFX?
Replies: 5
Views: 1386

Re: JavaFX?

256MB memory didn't help, it still hangs with no errors or output of any kind.

I must have something not configured correctly. I've got another Pi, I'll try that one and see if it is any different.
by knute
Wed Nov 26, 2014 12:11 am
Forum: Java
Topic: JavaFX?
Replies: 5
Views: 1386

Re: JavaFX?

I'll try increasing the memory and report back.

Thanks for the book recommendation, I ordered it.
by knute
Tue Nov 25, 2014 1:27 am
Forum: Java
Topic: JavaFX?
Replies: 5
Views: 1386

JavaFX?

Anybody got JavaFX running on their Pi? I've got 1.8.0_u6 installed and I can compile the program but I can't even get a simple HelloWorld app to run. It just hangs. A little help?

Thanks,
by knute
Sat Nov 22, 2014 5:32 pm
Forum: Java
Topic: Improve drawing performance?
Replies: 2
Views: 752

Improve drawing performance?

I realize that the Pi has limited processor power but I'm looking for a way to improve the drawing speed of some images. I'm working on a program that draws multiple images in rapid succession. I understand the Pi has a GPU and I've seen some pretty cool 3D action done with it. Does anybody know if ...
by knute
Wed Nov 12, 2014 3:03 am
Forum: Troubleshooting
Topic: Android VNC Connection.
Replies: 2
Views: 708

Re: Android VNC Connection.

Guys. Hi. I am like stuck in this situation since many days. I've set a static ip for rpi in cmdline.txt. it's set to 169.254.1.1 I've set up tightvncserver properly. Also, ive allowed My note 3 tether to be shared with the windows 7 laptop which is connected with rpi via lan cable. But, i can't us...
by knute
Wed Nov 12, 2014 2:45 am
Forum: Beginners
Topic: GUI using C++
Replies: 10
Views: 3836

Re: GUI using C++

I installed from NOOBS, the C++ compiler is in there already.
by knute
Wed Nov 12, 2014 2:26 am
Forum: Gaming
Topic: Help! Upgrading micro SD from 8 GB to 64 GB on B+ model
Replies: 9
Views: 3274

Re: Help! Upgrading micro SD from 8 GB to 64 GB on B+ model

Have you tried putting Raspi on the 64G card to see if that boots?
by knute
Thu Nov 06, 2014 3:07 am
Forum: Raspbian
Topic: Can't get a shell script to Autostart
Replies: 5
Views: 1935

Re: Can't get a shell script to Autostart

Hello! I installed on my Raspberry Pi OS http://www.raspberrypi.org/downloads/ (NOOBS) then set x11vns. Then do all the operations described here http://www.thefruitycomputer.com/forums/tutorials/article/24-autostart-x11vnc-in-raspbian/ but when booting the OS user pi server x11vnc not strarte. Wha...
by knute
Thu Nov 06, 2014 2:51 am
Forum: Troubleshooting
Topic: SSH
Replies: 1
Views: 353

Re: SSH

Can you ping it?
by knute
Thu Nov 06, 2014 2:40 am
Forum: Troubleshooting
Topic: Unable to set up PiGlow
Replies: 27
Views: 2520

Re: Unable to set up PiGlow

I'm just starting out on setting up the PiGlow (I got it yesterday) and I'm having some trouble. When I type in wget https://raw.github.com/benleb/PyGlow/master/pyglow.py --no-check-certificate , 10-15 seconds later I'm getting 404 NOT FOUND. I'm using wired internet on my Pi and I'm so confused. H...
by knute
Mon Nov 03, 2014 11:40 pm
Forum: Python
Topic: Raspberry Pi Communication with controller
Replies: 1
Views: 389

Re: Raspberry Pi Communication with controller

I don't know squat about RSS servers but as to connecting to your PLC, that part shouldn't be too hard. Do you have some documentation on how to connect?
by knute
Fri Oct 31, 2014 2:56 am
Forum: Beginners
Topic: Differences between boot sector and its backup
Replies: 8
Views: 4265

Re: Differences between boot sector and its backup

Hey thanks. I tried both your suggestion and the other fellow's about using the jessie repo. Both work just fine but adding the additional repo makes apt-get update take twice as long, so I took it out.
by knute
Thu Oct 30, 2014 3:35 am
Forum: Beginners
Topic: Differences between boot sector and its backup
Replies: 8
Views: 4265

Re: Differences between boot sector and its backup

I have the same problem, I caused it by unplugging my jump drive while the computer was running. I got the same errors and did the same fix, which cleared up the error when I run fsck but not when I boot. If you find a solution for this I would love to know. I'm also really curious how the boot sect...
by knute
Wed Oct 29, 2014 7:40 pm
Forum: Raspbian
Topic: Error message ejecting usb stick
Replies: 3
Views: 629

Re: Error message ejecting usb stick

Easy enough, thanks!
by knute
Wed Oct 29, 2014 5:42 pm
Forum: Raspbian
Topic: Error message ejecting usb stick
Replies: 3
Views: 629

Error message ejecting usb stick

I put a usb stick into my Pi and then looked at it with the file manager. When I was done I selected the Eject option and while it did in fact unmount, I got an error dialog: Error Starting Job: Failed to execute child process "eject" (No such file or directory). Anybody seen this and know how to co...
by knute
Wed Oct 29, 2014 5:16 pm
Forum: Troubleshooting
Topic: Problem in connection between raspberry pi and wifi router
Replies: 1
Views: 299

Re: Problem in connection between raspberry pi and wifi rout

Could it have changed IP address? Can you ping it from your laptop?
by knute
Wed Oct 29, 2014 5:13 pm
Forum: Troubleshooting
Topic: Raspbian - Unable to set True color
Replies: 4
Views: 757

Re: Raspbian - Unable to set True color

I'm curious why it would take more than 64MB of video memory to display 32bpp? Also what is the default color depth and how does one find that information?

Thanks!
by knute
Wed Oct 29, 2014 4:28 am
Forum: Raspbian
Topic: Can't get a shell script to Autostart
Replies: 5
Views: 1935

Re: Can't get a shell script to Autostart

The format for files in ~/.config/autostart is to name them something.desktop. The syntax as far as I can tell is: [Desktop Entry] Name=TheNameYouWantToShowUpInTheFileManager Type=Application Exec=path/to/script.sh Icon=path/to/icon.png That will start the script, path/to/script.sh, when the GUI sta...
by knute
Thu Oct 23, 2014 12:39 am
Forum: Raspbian
Topic: Questions about starting and stopping VNC on boot
Replies: 0
Views: 330

Questions about starting and stopping VNC on boot

I've installed tightvncserver and it all works just fine. I found this page, http://www.raspberrypi.org/documentation/remote-access/vnc/, with good instructions on how to start the VNC server on boot. The script from the page however started it as root. I'm not a Linux expert by any stretch but I th...

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