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by martinmarty
Sun Jul 14, 2019 11:14 pm
Forum: Graphics, sound and multimedia
Topic: Sound problems on Buster - no sound on 3.5mm analog
Replies: 0
Views: 353

Sound problems on Buster - no sound on 3.5mm analog

7/16/19 p.s. This is an update to the post I made below just in case anybody comes looking for a solution to the same problem. I was able to resolve the problem by uninstalling pulseaudio (sudo apt-get purge pulseaudio) which I found on this page: https://elinux.org/R-Pi_Troubleshooting#Sound Appare...
by martinmarty
Sat Jul 13, 2019 12:30 pm
Forum: Beginners
Topic: "apt-get update testing to stable" [FIXED]
Replies: 21
Views: 20015

Re: "apt-get update testing to stable" [FIXED]

Hi JPICentral, I have been using these Pis for a few years but I still consider myself a noob and still feel like a noob every time I go to do something with Linux especially every new release and some crazy new thing happens, so I can relate to your posts. Seems like every command is an adventure. ...
by martinmarty
Sat Jul 13, 2019 11:56 am
Forum: Raspbian
Topic: Buster Update Issue
Replies: 10
Views: 1614

Re: Buster Update Issue

This morning I was having a similar issue as the original poster while trying to bring my RPi 2 model B up-to-date. It is running Raspbian Buster Lite. I got the same error about the repository having changed from testing to stable. From reading other posts, I was able to resolve my problem by doing...
by martinmarty
Sun Jul 07, 2019 7:12 pm
Forum: General discussion
Topic: raspbian wheeze
Replies: 10
Views: 759

Re: raspbian wheeze

@HawaiianPi, FYI, I've got my old code running under Buster Lite now and am over the hurdles of the things I was worried about. Actually the last few years of Raspbian upgrades made a few things easier to set up than they had been previously so that is good. Of course some changes in other packages ...
by martinmarty
Thu Jun 27, 2019 10:43 pm
Forum: General discussion
Topic: raspbian wheeze
Replies: 10
Views: 759

Re: raspbian wheeze

Thank you, HawaiianPi. I have clean image of Stretch Lite up & running and can start trying to get all my home-grown code to work again. I also tried an upgrade Wheezy -> Jessie like this: https://raspberrypi.stackexchange.com/questions/27858/upgrade-to-raspbian-jessie It took a whole night and did ...
by martinmarty
Wed Jun 26, 2019 12:50 am
Forum: General discussion
Topic: raspbian wheeze
Replies: 10
Views: 759

Re: raspbian wheeze

Thank you very much for the reply. Although it was not the answer I was hoping for, you have certainly saved me a bunch of time & effort attempting to go down dead-end roads. I will start with a fresh OS. The software I am concerned about converting is a combination of apt and git installable packag...
by martinmarty
Tue Jun 25, 2019 9:32 pm
Forum: General discussion
Topic: raspbian wheeze
Replies: 10
Views: 759

Re: raspbian wheeze

I am having the same problem with the 404s on apt-get update. Yes, I am running wheezy, but my goal is to get the OS current. That's why I was doing the update. I was planning to do apt-get upgrade and thinking that would update my OS (from wheezy to stretch? is that possible?). I am not a Linux pow...
by martinmarty
Tue Oct 18, 2016 6:53 am
Forum: Beginners
Topic: How to get apps working?
Replies: 2
Views: 753

Re: How to get apps working?

On github it states, "About Grbl Grbl is a free, open source, high performance software for controlling the motion of machines that move, that make things, or that make things move, and will run on a straight Arduino." Seems like the grbl-master.zip software is supposed to run on the Arduino (which ...
by martinmarty
Tue Oct 18, 2016 12:45 am
Forum: Beginners
Topic: STICKY: Getting Started with the Raspberry Pi
Replies: 314
Views: 1244215

Re: Getting Started with the Raspberry Pi

Hi I was wondering will my Pi be damaged if I never shut it down/if I just keep it running indefinitely? Hi. I have RPi 1 model B and B+ hardware running about 29 months and I have RPi 2 hardware that has been running 13 months. Out of a total of 10 RPIs operating pretty much continuously for a yea...
by martinmarty
Thu Oct 06, 2016 5:56 am
Forum: General discussion
Topic: Is it normal for raspbian to just crash?
Replies: 40
Views: 5972

Re: Is it normal for raspberrian to just crash?

I've worked quite a bit with RPi 2, nothing with model 3 except buying one and throwing it on the bench for future spare time. I have seen the kind of erratic behavior you're describing a couple times on RPi 2 and it was invariably the power supply. I thought the power requirements on RPi 3 increase...
by martinmarty
Sun Sep 27, 2015 6:32 am
Forum: Beginners
Topic: What can i do with an pi2
Replies: 2
Views: 590

Re: What can i do with an pi2

You could put a media center on it, such as Kodi that you see a lot of people playing around with. That's kind of fun and entertaining. You could control things with it, such as lights or a robot. You say you know some HTML. You could install a web server such as Apache or Lighttpd. The Wolfram lang...
by martinmarty
Sun Sep 27, 2015 6:21 am
Forum: Beginners
Topic: HDMI Issues
Replies: 2
Views: 452

Re: HDMI Issues

Mark, are you sure it is booting? I don't think I had to make any changes to get mine to put output on HDMI. When you apply power, you should get activity from the green LED (i.e. flickering). If you get solid green LED it means that it cannot read the mSDHC card (I'm not 100% sure but I think this ...
by martinmarty
Sun Sep 27, 2015 6:13 am
Forum: Beginners
Topic: A shove in the right direction?
Replies: 3
Views: 651

Re: A shove in the right direction?

For Raspbian Linux, you could also put your java command in the file named /etc/rc.local.

I think you have to be root to edit it, so for example:

sudo nano /etc/rc.local
by martinmarty
Sun Sep 27, 2015 12:15 am
Forum: Beginners
Topic: D-Link DI-614+ router compatibility
Replies: 2
Views: 645

Re: D-Link DI-614+ router compatibility

I don't have much for you. Have you checked for firmware updates for the router?
by martinmarty
Sat Sep 26, 2015 11:04 pm
Forum: Beginners
Topic: How to fix video labeling in Kodi?
Replies: 1
Views: 432

Re: How to fix video labeling in Kodi?

Not that people won't answer if they can help, but maybe your odds would be better posting this question in a Kodi forum. :?

p.s. I'm not too good at Kodi, and I don't run it on Linux or RPi, but any time mine gets messed up I end up reinstalling it.
by martinmarty
Sat Sep 26, 2015 11:01 pm
Forum: Beginners
Topic: LED questions
Replies: 3
Views: 620

Re: LED questions

I am with P_Monty. You can get around your current problem easily using a transistor, possibly a transistor driving a relay. You didn't say exactly how many LEDs you were trying to drive and do you really have to address them individually or could they be in groups? How many groups? You thought you ...
by martinmarty
Sat Sep 26, 2015 10:33 pm
Forum: Beginners
Topic: Controlling LED's using C language
Replies: 5
Views: 1645

Re: Controlling LED's using C language

He's saying to look at the man (manual) page for the sleep function. You can type the command he gave you into a terminal session on your RPi. It will output something like this: http://linux.die.net/man/3/sleep The sleep function would do the same thing as the delay function you are already using f...
by martinmarty
Sat Sep 26, 2015 5:06 am
Forum: Python
Topic: Set time from ntp within python program
Replies: 7
Views: 6822

Re: Set time from ntp within python program

I agree with ame. Why is your NTP not working? I also use a Rasclock on mine for when it has no network connection. http://store.acmeun.com/products/rasclock-raspberry-pi-real-time-clock-module.html What Linux are you using? Is it possible a difference in permissions is causing your 24/7 problem, i....
by martinmarty
Sat Sep 26, 2015 3:00 am
Forum: Troubleshooting
Topic: Power supply went down after upgrade
Replies: 4
Views: 770

Re: Power supply went down after upgrade

My bet is that it was a coincidence, as hard as that is to believe sometimes. I just got to the bottom of a really weird problem which ended up being a marginal 2A power supply. I had read reports of others warning to ensure a good power supply but until I got bit the lesson was not learned. I figur...
by martinmarty
Thu Feb 26, 2015 6:10 pm
Forum: Troubleshooting
Topic: Lighttpd web server - 403 forbidden
Replies: 5
Views: 8832

Re: Lighttpd web server - 403 forbidden

I've been having a similar problem after changing the lighttpd server to run as user pi (might have had the problem before as well - I never tried it at that point). My web pages worked fine when accessed from a different computer using my RPi's IP address on the local network, 192.168.11.122, but w...
by martinmarty
Fri Nov 14, 2014 4:33 am
Forum: Troubleshooting
Topic: Errors and crashes when touching the GPIO pins
Replies: 6
Views: 7663

Re: Errors and crashes when touching the GPIO pins

Your unterminated cable or finger is feeding electrical noise into the UART RxD, as you say. This is interpreted as random input characters and serial breaks. The UART is configured as serial console by default, so a break on it is equivalent to pressing Alt+SysRq on the framebuffer console. Some o...
by martinmarty
Mon Nov 03, 2014 3:45 am
Forum: HATs and other add-ons
Topic: CW2 PiUSV / PiUPS Experiences
Replies: 4
Views: 4765

Re: CW2 PiUSV / PiUPS Experiences

I *think* this is their fix for the discharging problem (i.e. new product version) and it looks like it becomes available tomorrow: http://www.piups.net/plus/?lp=ose#home I bought the old (bad) Pi UPS from http://www.mcmelectronics.com/ but I don't see the new & improved version on their web site. A...
by martinmarty
Mon Oct 27, 2014 8:05 am
Forum: Advanced users
Topic: Command Line Serial Baud Rate Control
Replies: 6
Views: 32893

Re: Command Line Serial Baud Rate Control

Andrew, I've been trying to interface my Pi model B with a digital sign and having numerous problems, one of which was the voltage levels of the Pi serial pins versus RS232. This evening I ordered a couple of adapters based on the MAX3232 chip. Then I found your serial interface circuit schematic on...
by martinmarty
Sat Oct 11, 2014 4:46 am
Forum: Advanced users
Topic: SD Card Backup and Custom Image...
Replies: 48
Views: 42634

Re: SD Card Backup and Custom Image...

p.p.p.s. ALL MY FAULT. After I made my first backup today, I was getting ready to make a second and I plugged in my USB 3.0 card reader to RPi while it was booting on backup #1. RPi doesn't take kindly to this USB 3.0 device and immediately crashes and coldstarts. I did not test XWindows (incorrectl...
by martinmarty
Sat Sep 27, 2014 9:40 am
Forum: Advanced users
Topic: SD Card Backup and Custom Image...
Replies: 48
Views: 42634

Re: SD Card Backup and Custom Image...

Thanks, Dougie! fdisk -l put me right onto sd C , and I've already made and tested one full backup. This script is wonderful. I've been fighting for numerous sessions over the past couple weeks of how to make backups of a full working Pi application and having no luck because all the imaging method...

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