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-1
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0answers
20 views

How to add RTLinux in ubuntu 14.04? [duplicate]

I Want add RTLinux to my system which alresdy with edubuntu 14.04 LTS and Windows 8.I have tried linux-r ,but says command not found.Can anybody help me to solve this.
0
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0answers
15 views

Xenomai: binding failed: Cannot allocate memory

I installed and configurated xenomai using this guide. There are some examples under xenomai2.6/examples/rtdm/driver-api. To add rtdm module to kernel, I added my gid using below command echo "1000" ...
0
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0answers
27 views

Xenomai: /dev/rtheap is missing

I want to use `xenomai . I try to install on my pc. I read this page and did these steps: http://www.stanley.gatech.edu/skelly/uncategorized/installing-xenomai-on-ubuntu-12-04/#comment-3379 But I ...
1
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0answers
121 views

Start jackd with realtime priority with upstart

I'm trying to start jackd with realtime priority at boot with an uptstart script but with no success so far. I'm using ubuntu server 14.04. My upstart version is 1.12.1. The user and group I'm using ...
2
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0answers
68 views

How to disable Lazy Preempt in kernel

I'm relatively new to Linux and working on getting a real-time kernel up and running for robot applications. I'm on Ubuntu 14.04, using kernel 3.14.3 and the 3.14.3-rt5 real-time patch. Also using ...
1
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0answers
161 views

A2DP on PulseAudio - terrible choppy/skipping audio

I have paired my Bluetooth headset with my Ubuntu 12.04 laptop with a Bluetooth chip inside: lsusb | grep Bluetooth Bus 003 Device 003: ID 045e:0745 Microsoft Corp. Nano Transceiver v1.0 for ...
1
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0answers
417 views

“ERROR: Kernel configuration is invalid”

I have been stuck on this issue for two days now and couldnt find a fix for this. I installed a realtime kernel with sudo apt-get install linux-rt because KauNet (which is an ipfw extension) ...
0
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0answers
263 views

Netflix (Pipelight) Low Frame Rate With RT-Preempt Patch

Running Ubuntu 13.10 stock, I was getting horrible "jitter" across the entire OS. Meaning that, videos would not play smoothly compared to a TV set, Compiz effects were not smooth, games were not ...
0
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1answer
472 views

VisualBoyAdvance Battery Has Run Dry

I recently downloaded VBA and Pokemon Emerald. The game says "The Internal Battery has run dry" I've been told to go to Options>Emulator>Real Time Clock, but there is no clock! I have checked ...
0
votes
1answer
72 views

Multiple kernels choices realtime or no realtime

I have a dell latitude d510 currently running xubuntu 13.04 and linux 3.8. I want this machine to host JACK processes together with EDIROL UA-25 during a live session and therefore, it needs an RT ...
1
vote
2answers
270 views

What is the purpose of the RTAI package in Ubuntu

RTAI (Realtime Application Interface) is a Linux kernel patch, that exposes an API to userland processes, which can be used to create very low latency and jitter programs for realtime tasks. I've ...
0
votes
1answer
337 views

Ubuntu can be used as Hard Real time OS? [duplicate]

I want OS for Beagleboard which can support HARD REAL TIME OS Feature. is Ubuntu HARD Real time OS ?
2
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0answers
416 views

How do I install a real-time kernel with a patch I need to apply? [closed]

I have ubuntu 12.04 with kernel 3.5. I have to install the RT_PREEMPT patch and I followed these steps: sudo apt-get install kernel-package fakeroot build-essential libncurses5-dev mkdir -p ...
2
votes
1answer
91 views

how to update dolphin file manager in real time

If I have dolphin open and I'm working in the terminal or on Windows files might be moved or added. How would I go about to make sure it updates the status of a directory of real time? Presently I ...
1
vote
0answers
34 views

how i can boot RT-lunix

Under UBUNTU 12.10, I just load the linux-rt kernel The installation seems to be uneventful. Only now, at the start, nothing new, it directly boot on my current system without offering me bios menu. ...
3
votes
2answers
158 views

Is it possible to direct system monitor output to a file?

I want to save to a text file the CPU and memory usage real-time info displayed in Gnome System Monitor 3.6. Does anybody know if this is possible? If so, how can it be done? If it's not possible with ...
0
votes
1answer
554 views

Automatically mirror a directory in Ubuntu

Running Ubuntu 12.04 I have a library of personal files and documents stored in Dropbox. I want the Dropbox folder to be automatically mirrored to a directory in the local machine, as a backup to the ...
1
vote
1answer
424 views

How to see real time updates of file system at terminal?

I am studying git and how it works with file system. I installed application called terminator, which allows me to open multiple terminals. I want to run git commands at the left terminal and want to ...
0
votes
2answers
1k views

12.04 Ubuntu studio PREEMPT_RT kernel options

My audio processing needs require a preempt_rt kernel. I roughly followed the guide: https://wiki.ubuntu.com/KernelTeam/GitKernelBuild with a little help from: ...
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votes
1answer
348 views

How to install backported programms?

How to get backported kernel and nautilus? im on 10.04 i want fixes witch are made in 12.04 how to get them? im beeing told about installing backported kernel. On 10.04 i have some bugs witch been ...
1
vote
3answers
177 views

What can I do about the fglrx driver interfering with jackd?

The jack-audio-connection-kit needs to run in realtime mode and my system is configured accordingly. I'm using the fglxr driver. With Unity-2d everything is fine. With Unity-3d, jack-clients ...
7
votes
1answer
4k views

Using the RandR-enabled nvidia 302.xx beta driver in 12.04 with a realtime kernel

How can I use the recent beta of the 302 version of the nvidia driver (which finally supports the RandR extension!) with a realtime kernel in Precise? This question contains information on enabling ...
20
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4answers
36k views

How can I install a realtime kernel?

I have read a lot of threads with similar questions, but after reading the answers, I am very confused. I have found in them lots of url's with repositories but people discusses about which ...
2
votes
1answer
655 views

Is RTLinux the same as linux-rt?

I'm trying to install a hard realtime kernel in Lucid for some robotics work. My preference is RTLinux (http://rtlinuxfree.com) by Wind River Systems. I also see that there is a package by the name ...
1
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1answer
1k views

Can I install rtlinux?

How do I install rtlinux in Ubuntu? If I get it to install will it make software work abnormally?
3
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2answers
2k views

Can it be harmful to grant jackd realtime priority?

I am apt-get installing Ardour, a sound mixing program, just to try it out. Installing Ardour also installs JACK, a dependency. As part of the JACK installation script, I get the following dialog: ...
2
votes
1answer
526 views

Realtime kernel running as virtual machine

I read that using a Linux kernel (Ubuntu rt kernel) was able to increase the response time of a Java application by 4x. My only problem is that I must run a program that only has a Windows ...
3
votes
1answer
833 views

Reducing audio delay from redirecting input to output

I tried using the solution presented in a related question for redirecting my audio input to my output, but the problem is that there's a very noticeable lag. It's especially obvious to me because I ...
4
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2answers
1k views

Why to use ordinary kernel if there's realtime one?

What are benefits of an ordinary Ubuntu kernel compared to realtime one? What are realtime kernel's tradeoffs?
7
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4answers
6k views

How to install realtime kernel?

Axel wrote: "try using the a realtime kernel, it's more responsive and the apps "seems to hang less"". How to do this?
1
vote
2answers
329 views

How to set up video and audio players to use realtime (or close) priority?

I use raw mplayer to play video, DeaDBeeF to play audio and Skype for VoIP. Heavy CPU-consuming processes (like rendering a website in Firefox, redrawing a Java IDE window or compilation) cause ...