Ubuntu is a Linux operating system derived from the Debian distribution.

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Pulse Audio has no output but Alsa does?

I have a raspberry Pi B that I would like to configure for sound. It's running ubuntu 14. I just installed PulseAudio and unfortunately there is no sound. I have tried this several ways. If I run: ...
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0answers
25 views

Ubuntu Server vs. Raspbian speed [on hold]

I am planning on running a server with my pi 2 and, given its limited hardware, I want the fastest performance possible. It seems as if a fresh install of Raspbian (used from the terminal) or Ubuntu ...
0
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1answer
41 views

Wifi stick for Raspberry Pi 2

I have bought a Raspberry PI 2 bundle, which contained an Edimax ew-7811un wifi stick. Unfortunately it is not working well with the Raspbian OS. It is horribly slow (4-10 Kbyte/s). I have tried ...
3
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3answers
71 views

Can I run Ubuntu Server on an Rasperry Pi 2 Model B?

I only read that you can install Ubuntu Mate and Snappy. I don't need the graphic interface, so I'd like to go with the server version and use it as a file-server in my home network.
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1answer
46 views

Is it possible to access Raspberry pi 2 ubuntu 14.04 without usb-keyboard?

I installed Ubuntu 14.04.02 LTS on my Raspberry pi 2 model B. My Raspberry pi 2 is connected to my home router with LAN cable and monitor with HDMI cable. When Raspberry pi is on, the monitor ...
3
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1answer
62 views

How to connect and use ssh without a screen using BUILDROOT

i want to build a minimal system for raspberry pi (B+) to improve the performance of my face detection algorithm ... I have found BuildRoot : for the configuration i found that it's not necessary to ...
1
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3answers
58 views

Creating Disk Image of SD Card

So I've found this command: dd if=/dev/sdx of=/directory/for/image bs=1M But that gives me this error: dd: failed to open ‘directory/for/image’: Is a directory So I found that the directory has ...
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2answers
48 views

Is 8gb enough to support Ubuntu MATE without storage issues?

After becoming familiar with Rasbian and Terminal, I decided to try something new with ubuntu MATE. Aside from the microSD card that the Raspberry pi came with, which I want to keep the Rasbian ...
1
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1answer
30 views

What compatibility is there between Legacy Pi and Pi 2?

Basically, I have a legacy Pi and Ubuntu MATE for RPi says it's for RPi 2. Will software designed for RPi 2 boot / run on legacy Pi? Are there big incompatibilities?
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2answers
66 views

Is it necessary to resize the file systems on Ubuntu MATE?

After installing Ubuntu MATE on my Raspberry Pi 2, everything works fine, for once. However, the site I am following to set it up tells me I have to resize the file systems. It tells me to delete the ...
1
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2answers
380 views

White TFT LCD touchscreen isn't functioning on Raspbian or Ubuntu on a Raspberry Pi 2

I finally received my 3.5" KeDei 480x320 16bit/18bit version 3.0 TFT LCD touchscreen from Hong Kong. It only connects through the GPIO pins. I plugged it into my Raspberry Pi 2 and I was met with a ...
0
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1answer
46 views

No rule to make target error

I'm trying to "sudo make ubuntu-install" to compile Telephone Number Blocker from the Murphy 101 blog. I have a brand new Raspberry Pi 2, have installed raspbian - so I assume it's the latest ...
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0answers
29 views

Speed of video .ts files freezes in Ubuntu MATE

Get video running in Ubuntu MATE Is there a way to install Ubuntu MATE with decent video support like OSMC? When I start OSMC on my Pi2, I can watch all my VCR recordings in .ts format well (MPEG 1 ...
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0answers
137 views

How to install Ubuntu MATE without HDMI output?

I'm new to Raspberry Pi 2, I just bought a Raspberry Pi 2 1.1, I don't have a TV or monitor with HDMI input, so I have to install Ubuntu MATE without it, is there any way to use composite video? i ...
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0answers
92 views

SD card not accessible since writing image with dd

I've first installed Raspbian via NOOBS (just placed the files on the SD Card using windows), which worked fine and Raspbian was start- and usable. Afterwards I wanted to set an static IP by changing ...
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3answers
73 views

how to inspect Rasperry Pi 1A from Laptop (Ubuntu Linux 14.04)

I won a Raspberry Pi at a contest about 2 years ago. Finally I got the proper wire to connect it to my laptop, but it's not doing anything! The light goes on, but nothing appears in my operating ...
0
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1answer
212 views

Black screen on first boot of ubuntu mate

I am trying to install Ubuntu mate on my rpi2. But so far, I am only getting a black screen (I don't even see a the colorful splash screen) I installed NOOBS on my MicroSD card to ensure that the card ...
1
vote
1answer
73 views

Undefined reference to raspicam::_private::Private_Impl[…]

I am trying to make a project for the Pi B+ using ROS, RaspiCam and OpenCV (in c++). I want to write my code in QTCreator in a Virtual Machine running Ubuntu 14.04, and then transfer the files to my ...
0
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1answer
70 views

Getting a video error after writing Ubuntu Mate to a SD card

I have written an Ubuntu Mate image file to an SD card using win32disk manager. When I insert it into the Raspberry Pi, it keeps displaying the following message on the monitor: Digital Input - ...
5
votes
1answer
125 views

configure monitor to allow rotation

I have a monitor Samsung SyncMaster 943B (connected through DVI) which has a rotatable screen. Monitor Preferences shows "Monitor Unknown" and the correct Resolution but not the Refreshrate and won't ...
1
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2answers
134 views

Ubuntu Mate not using all its storage

Today I bought a 32GB sd card and inserted it into my Raspberry Pi 2B. I installed Ubuntu Mate on it. Now I was installing some apps, and it says there's no more free space to install apps on. It has ...
0
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1answer
342 views

How to install a cross compiler for Raspi 2

I went through hell installing a cross compiler on Ubuntu for my Raspi. Now, I have Raspi2's and I am I am going through it again. Could someone provide instructions here for myself and others who are ...
0
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1answer
193 views

Ubuntu MATE image wont run

Ubuntu MATE pi image wont run. I want it to run on a pi 2, but the green light just stays lit. I also tried the imaged sd card on a pi B+ (just to test) and the green blinks 7 times. I imaged the ...
5
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2answers
322 views

Raspberry pi frequently disconnecting and reconnecting from wifi network

My raspberry pi 2 (running Ubuntu 14.04) with SIIG wireless mini adapter is unable to maintain a connection with the access point. It does not seem to be signal strength related, as it behaves well ...
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2answers
140 views

Unable mount SD card and access files on raspian partition after one successful mount

Yesterday, I plugged in an SD card with a bunch of video data acquired by my Raspberry Pi into my Ubuntu computer. The SD card mounted with the usual boot and OS partitions. Like an idiot, I did not ...
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2answers
375 views

Raspberry Pi 2 Error accessing GPIO with SUDO for AdafruitDHT and AM2302/DHT22 sensor

I've built my Raspberry Pi2 with Unbuntu per the instructions here. Software wise I have installed the following packages python-pip python-dev mercurial as well as the following python ...
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0answers
559 views

Ubuntu Mate WiFi configuration

I have installed Ubuntu Mate on my Pi2, and it is working well, but I have some problems with WiFi. I have 2 Wi-Pi dongles, which I use with my 3 Pis. My router allocates reserved IP based on MAC. ...
0
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1answer
1k views

possible to ssh with Ubuntu MATE

I flashed the Ubuntu MATE distro with my OSX. Now I try to connect to my pi through ssh. I get an IP but when I try to log with ubuntu/ubuntu as a login/password, it does not work. Is it configured to ...
2
votes
1answer
191 views

which ubuntu version to install

I have installed ubuntu snappy but I can't find apt-get which is not a problem but I can't find some packages as vim... Which is the best Ubuntu version to install ? What are the pros and cons ?
0
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1answer
36 views

Can I prepare an Ubuntu SD card for my Pi 2 B on a Windows 10 machine?

The title says it all. Can I find and can I flash the correct Pi image for Ubuntu (apparently the only Linux the 2 B can use so far)? Then, is there guidence for this anywhere? Or must I first get ...
2
votes
1answer
652 views

Can't get Ubuntu Mate on NOOBS?

So Ubuntu mate is now an 'official' third party OS I guess: https://www.raspberrypi.org/downloads/ I'd like to install it to try it out, I know how to install using a .img file, no problem. The ...
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0answers
31 views

Cross Compilation Delay in Live Streaming

I have designed a Glade file and written codes in Gtk2, C language in Ubuntu(local host) to play live streaming of cameras, I cross compiled with the Raspberry Pi(remote host)...everything went fine, ...
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0answers
25 views

SSH to RPi from PHP on Ubuntu and play video file on RPi from Ubuntu

I'm making a personal movie and TV show database. A user on the local network can already access a webpage with a list of movies and TV shows and play them on their device. I have a laptop (acting ...
3
votes
2answers
2k views

No sound with Rpi 2

I am using Rpi2 installed with ubuntu mate.I've got these speakers but when I plug into the audio 3.5mm jackout there is no response from speakers. The speakers are working fine with other devices.Is ...
0
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0answers
119 views

Open serial port via bluetooth to raspi (as a slave)

So basically I want to connect my laptop running ubuntu 14.05 via bluetooth to my raspberry pi with a bluetooth dongle and then be able to push serial data through either end. The end goal is to be ...
0
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2answers
239 views

I want to get tor-browser-bundle to run on an RPi2 B. What OS can I use? What are the steps?

I have been trying for months to get tor-browser-bundle TBB to run on my RPI2. My knowlege of linux is very limited. I have tried to download from Torproject and cannot get it to run. I have tried in ...
1
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0answers
55 views

Wifi shared through ethernet cable [Ubuntu]

I have a laptop connected to wifi. I would like to connect my Raspberry Pi to it with an ethernet cable and have access to internet thanks to the laptop connection. I have found a lot of partial ...
1
vote
1answer
449 views

How to install git in PI snappy

My pi2 is installed with ubuntu-15.04-snappy-armhf-rpi2.img.gz, I want to install git in it but failed, here is info: (RaspberryPi2)ubuntu@localhost:~$ sudo snappy install git Installing git git ...
1
vote
1answer
241 views

AirCrack-NG suite: besside-ng not installed on Ubuntu 14.04 for raspBerry Pi 2

I have installed Ubuntu Linux 14.04.2LTS from official WiKi and added AirCrack-NG (for wireless auditing) suite by following official docs too (the official aircrack-ng package was obsolete). But now ...
1
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0answers
171 views

Chromium **No sound** or/and **“Aw, Snap!”** message when initiating a WebRTC session

ISSUE No sound or "Aw, Snap!" message when trying to initiating a webRTC session e.g. http://appear.in, http://opentokrtc.com or apprtc.appspot.com The video session session seems to work alright ...
0
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0answers
39 views

HDMI does not display and am unable to access config file

I have just set up my Pi and get a 'no singal' when it is attached through a HDMI cable. I've seen that this is not uncommon are requires you to enter hdmi_force_hotplug=1 and hdmi_safe=1 to the ...
2
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0answers
532 views

How to boot Ubuntu 14.04 for Raspberry Pi 2 under qemu?

There's an Ubuntu image for the Raspberry Pi 2 here: https://wiki.ubuntu.com/ARM/RaspberryPi I'd like to boot this image under qemu. I'd like to do it so that I can have some virtual build systems as ...
2
votes
1answer
2k views

Camera, Ubuntu, modprobe bcm2835-v4l2 ERROR: could not insert 'bcm2835_v4l2': Operation not permitted

I have added a camera to the raspberry but I get the following when trying to load the driver: root@deadlock-desktop:~# modprobe bcm2835-v4l2 modprobe: ERROR: could not insert 'bcm2835_v4l2': ...
2
votes
2answers
587 views

can't load IA 32-bit .so on a ARM-bit platform

I was hoping to run PHPStorm on my raspberry pi running Ubuntu Mate. I managed to install Java 8 but get the following errors when trying to run PHPStorm: ./inspect.sh Java HotSpot(TM) Server VM ...
2
votes
2answers
2k views

Large Monitor on Ubuntu Mate

I have a large monitor which I'd like to use with the Raspberry Pi 2 Model B. The monitor is an LG 21:9 ultrawide so a little unusual. I'm running Ubuntu Mate and the resolution is defaulting to 1824 ...
2
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0answers
234 views

Keyboard doesn't work in initramfs

I've setup an encrypted root partition with Ubuntu 15.04 MATE (the latest image). I've fought with it for quite a while now, but I'm now certain that the initramfs has everything it needs in order to ...
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2answers
2k views

How do I write the RetroPie img file to my SD card?

I have the latest RetroPie 3.0 beta .img file, a 32Gb micro SD card with adapter which I formatted to Fat32 using GParted and I'm using Ubuntu 14.04. In the CLI, I typed dd bs=4M if=~(I drag ...
1
vote
1answer
122 views

Is it safe to run Raspberry Pi on 900 Mhz all the time?

I've just installed Ubuntu Mate on my Raspberry Pi 2. I've selected Performance governor on cpufreq so it will run on 900 Mhz all the time. But I'm wondering is it safe for long periods like 8 - 10 ...
1
vote
1answer
2k views

Is it possible to install Qt5 on Ubuntu MATE or Raspbian with Raspberry pi 2?

First of all, I'm not sure if I should be asking this here, or on stackoverflow. But, here will be my first shot, if it's not the right place, just tell me and I'll move the question elsewhere. Ok, ...
1
vote
1answer
154 views

Raspberry wont boot using SD card prepared using dd on Ubuntu [closed]

This is weird. Raspberry Pi wont boot (red led is glowing) using SD card which image is written using dd on Ubuntu laptop, while it will boot if same SD card is written using very same image file on ...