Search found 664 matches
- Sun Aug 02, 2020 3:41 pm
- Forum: General discussion
- Topic: LCD35
- Replies: 11
- Views: 1632
Re: LCD35
I managed to get my other one working by installing new 5/27 RPiOS, rebooting, running the rpi-update rollback command, and rebooting again. Not sure why I couldn't get it to work before.
- Sat Aug 01, 2020 7:20 pm
- Forum: General discussion
- Topic: LCD35
- Replies: 11
- Views: 1632
Re: LCD35
I've got two brands of those little screens that don't work with the 5.4 kernel. One is a Waveshare and the other is an goodtft/LCDwiki(?). The only fix I found was to go back to the 4.19 kernel. I managed to do that with rpi-update on one but the other I had to burn a new card with the 05/27 Raspbi...
- Thu Jul 30, 2020 10:47 pm
- Forum: General discussion
- Topic: Notepad++
- Replies: 51
- Views: 8647
Re: Notepad++
I've got wine on my Xubuntu box and Notepad++. Seems to work fine. I think it would work on a Pi too. Well... Aside from the fact that Notepad++ is written to run on an x86 hardware architecture and Pis use ARM architecture... Yes you need an emulator too. https://www.youtube.com/watch?v=cb-Ruos-O2...
- Thu Jul 30, 2020 7:25 pm
- Forum: Troubleshooting
- Topic: PI 4 8gig no sound ever
- Replies: 2
- Views: 165
Re: PI 4 8gig no sound ever
Are you running the 5.4 kernel and the vc4-kms-v3d overlay?
- Thu Jul 30, 2020 7:14 pm
- Forum: General discussion
- Topic: Notepad++
- Replies: 51
- Views: 8647
Re: Notepad++
I've got wine on my Xubuntu box and Notepad++. Seems to work fine. I think it would work on a Pi too.
- Wed Jul 29, 2020 10:24 pm
- Forum: Troubleshooting
- Topic: Pi 4 no sound
- Replies: 3
- Views: 336
Re: Pi 4 no sound
Do you have the 5.4 kernel and the vc4-kms-v3d overlay?
- Fri Jul 24, 2020 2:46 pm
- Forum: Beginners
- Topic: Questions about programming on the Raspberry Pi [spam]
- Replies: 10
- Views: 664
Re: Questions about programming on the Raspberry Pi
If you are used to C# I would just use Java. But then I would use Java anyway
.

- Thu Jul 23, 2020 8:09 pm
- Forum: Troubleshooting
- Topic: allo piano 2.1 dac , no audio after updating kernel to 5.4.51
- Replies: 4
- Views: 356
Re: allo piano 2.1 dac , no audio after updating kernel to 5.4.51
I found a problem with the vc4-kms-v3d overlay and the new kernel was stopping my audio. You might check to see if that is enabled in your /boot/config.txt file. The fkms version works and no overlay works.
- Wed Jul 22, 2020 3:11 pm
- Forum: Troubleshooting
- Topic: 5.4 kernel audio stopped and Pi freezes - Update!
- Replies: 0
- Views: 134
5.4 kernel audio stopped and Pi freezes - Update!
So I had two problems with the new kernel on my 3B+. First I was getting screen freezes. I would look away from the Pi for a bit and the screen would be black. No response to mouse and I couldn't SSH in from another computer. I'm not sure this is resolved but it may be related to the next problem. A...
- Tue Jul 21, 2020 11:03 pm
- Forum: Troubleshooting
- Topic: allo piano 2.1 dac , no audio after updating kernel to 5.4.51
- Replies: 4
- Views: 356
Re: allo piano 2.1 dac , no audio after updating kernel to 5.4.51
I'm seeing the same problem, no audio after kernel 5.4. I installed 5.4 through apt.
- Tue Jul 21, 2020 10:54 pm
- Forum: Beginners
- Topic: Creating GUI to control GPIO using qt 3d studio
- Replies: 3
- Views: 168
Re: Creating GUI to control GPIO using qt 3d studio
I wrote one in Java that you could modify: http://pi.knutejohnson.com
- Tue Jul 21, 2020 10:43 pm
- Forum: Java
- Topic: 64-bit Java on RPi4
- Replies: 12
- Views: 3309
Re: 64-bit Java on RPi4
bell-sw.com
- Tue Jul 21, 2020 10:34 pm
- Forum: Advanced users
- Topic: Moving Linux Kernel to 5.4
- Replies: 474
- Views: 95261
Re: Moving Linux Kernel to 5.4
The new kernel has killed my little 3.5 inch displays. Apparently their drivers aren't compatible with 5.4. I reverted the kernel with rpi-update and that solves the display issues for now. I emailed the maker and if I hear back on a solution I'll post it here.
- Sun Jul 19, 2020 8:13 pm
- Forum: Automation, sensing and robotics
- Topic: Remote Wireless Temperature Sensor
- Replies: 2
- Views: 426
Re: Remote Wireless Temperature Sensor
I think the simplest way would be to have your Pi send the data to the web server by whatever means you normally use to upload content. I wrote some software for a Pi that gets a photograph and data from a mountain top radio repeater site, creates a composite image with the photo and the sensor data...
- Wed Jul 15, 2020 4:24 pm
- Forum: Troubleshooting
- Topic: pigpiod error message?
- Replies: 13
- Views: 835
pigpiod error message?
On occasion I get the following during shutdown or reboot:
A stop job is running for Daemon required to control GPIO pins via pigpio (... / 1min 30s)
Raspberry Pi 3B+
Latest up to date Raspi OS
pigpiod enabled at startup
A stop job is running for Daemon required to control GPIO pins via pigpio (... / 1min 30s)
Raspberry Pi 3B+
Latest up to date Raspi OS
pigpiod enabled at startup
- Wed Jul 08, 2020 6:56 pm
- Forum: Beginners
- Topic: FTP server -vsftpd show wrong time +3 from my time
- Replies: 4
- Views: 359
Re: FTP server -vsftpd show wrong time +3 from my time
I think it has to be a timezone problem. What timezone are you in? What are the contents of /etc/timezone? What is the output of the date command?
pi@raspberrypi3B-1:~ $ cat /etc/timezone
America/Chicago
pi@raspberrypi3B-1:~ $ date
Wed 08 Jul 2020 01:56:40 PM CDT
pi@raspberrypi3B-1:~ $ cat /etc/timezone
America/Chicago
pi@raspberrypi3B-1:~ $ date
Wed 08 Jul 2020 01:56:40 PM CDT
- Tue Jul 07, 2020 3:50 pm
- Forum: Beginners
- Topic: FTP server -vsftpd show wrong time +3 from my time
- Replies: 4
- Views: 359
Re: FTP server -vsftpd show wrong time +3 from my time
I checked my installation of vsftpd running on a Pi3+. I tried sending a file to it from my Xubuntu desktop and the times are correct. You might check to make sure that there aren't timezone issues with either your client or server computer. Changing the use_localtime option to NO might help you to ...
- Mon Jun 29, 2020 4:15 pm
- Forum: Java
- Topic: Java JIT availability on OpenJDK 11
- Replies: 1
- Views: 781
Re: Java JIT availability on OpenJDK 11
I like Azul's JDK because you can get it with JavaFX but I don't think it is any faster than OpenJDK. You can also look at Bell Software's JDK, bell-sw.com, it also has a version with JavaFX built in. The advantage of Bell's is that they have version 14 available with JavaFX for ARM.
- Tue Jun 23, 2020 7:33 pm
- Forum: Networking and servers
- Topic: Help installing Oracle JDK 8/Airsonic
- Replies: 7
- Views: 541
Re: Help installing Oracle JDK 8/Airsonic
If it is the same package you have in your first post: sudo mv jdk-8u251-linux-arm32-vfp-hflt.tar.gz /opt cd /opt sudo tar xvf jdk-8u251-linux-arm32-vfp-hflt.tar.gz I think it will create a directory something like jdk-8_251. All of the programs are in jdk-8_251/bin. Create some links in your /home/...
- Tue Jun 23, 2020 12:56 am
- Forum: Networking and servers
- Topic: Help installing Oracle JDK 8/Airsonic
- Replies: 7
- Views: 541
Re: Help installing Oracle JDK 8/Airsonic
Actually you've linked to Open Java which i'm trying to avoid as it hangs the boot for an hour apparently. This is why i've been at pains to get hold of the Oracle package. Since the license arrangements changed you can only get hold of it through a registered Oracle account which i've done so .. h...
- Sun Jun 21, 2020 6:22 pm
- Forum: Networking and servers
- Topic: Help installing Oracle JDK 8/Airsonic
- Replies: 7
- Views: 541
Re: Help installing Oracle JDK 8/Airsonic
I looked at that webpage and it says you need at least version 7. Since 11 is the current long term support version, I would install that.
sudo apt update
sudo apt install openjdk-11-jdk
sudo apt update
sudo apt install openjdk-11-jdk
- Sun Jun 21, 2020 6:07 pm
- Forum: General discussion
- Topic: Shortest possible firewall rule set
- Replies: 1
- Views: 182
Re: Shortest possible firewall rule set
sudo apt ufw install
sudo ufw allow <your services eg. ssh>
sudo ufw enable
I can't imagine why you would want to block outgoing ports, it is only going to give you grief. Tell me what harm you think you would be preventing?
sudo ufw allow <your services eg. ssh>
sudo ufw enable
I can't imagine why you would want to block outgoing ports, it is only going to give you grief. Tell me what harm you think you would be preventing?
- Fri Jun 12, 2020 2:38 am
- Forum: Troubleshooting
- Topic: UFW Firewall Rules
- Replies: 6
- Views: 314
Re: UFW Firewall Rules
You don't need the deny in rules. If you have a router you can connect from the outside to your network with a VPN. From there you can ssh into your Pi and restrict it to local addresses. You need to decide if you need to get to your webserver from the wild or if you can VPN to your network first. A...
- Tue Jun 09, 2020 3:48 pm
- Forum: Troubleshooting
- Topic: UFW Firewall Rules
- Replies: 6
- Views: 314
Re: UFW Firewall Rules
Not really. The default for UFW is to block inbound so you don't need any deny in rules, just allow rules. Just allow the ports for services that are running on your Pi. If you can restrict where they are coming from you should do that too. Do you have a router between your Pi and the internet or do...
- Mon Jun 08, 2020 3:13 pm
- Forum: Troubleshooting
- Topic: UFW Firewall Rules
- Replies: 6
- Views: 314
Re: UFW Firewall Rules
The simple solution to this is don't block all outgoing, it's just going to make your life difficult and not make your computer any more secure. View your camera through an SSH tunnel.