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Ubuntu Cannot Use Real-time Scheduling Fifo At Priority 10

It's a USB2 audio interface so it won't work on an USB port that only does USB1.1 Also the USBstreamer is an USB2 device that needs a Windows driver so I Posts: 13Joined: Tue Feb 12, 2013 5:02 am by audioplastic » Wed Feb 20, 2013 1:28 am Just found this thread and I'm extremely interested! Posts: 13Joined: Tue Feb 12, 2013 5:02 am by AutoStatic » Thu Feb 14, 2013 7:19 pm akavir wrote:First off I have to completely disable the ethernet, disabling turbo is not Posts: 6Joined: Tue Jan 15, 2013 12:51 am by akavir » Wed Feb 20, 2013 4:40 am I'm still stugling to get 2in/2out duplex to work correctly. this contact form

I dont| > know| >| > cat /etc/limits.conf | grep audio| > #@audio - rt_priority 100| > #@audio - nice -10| > #@audio - memlock 4000000| > @audio - rtprio 99| I change two things in my user and groups configuration. Changed in jack-audio-connection-kit: importance: Undecided → Wishlist status: New → Confirmed Endolith (endolith) wrote on 2008-05-07: #5 "All you have to do for this is give your audio group permissions to I have compiled stuff in windows visual studio, but have very little DOS or terminal experience.

I think that46 min 52 sec ago yeah sorry, my post was in59 min 5 sec ago By the way: none of the1 hour 2 min ago Still having some lines1 I tried installing ubuntustudio-controls, but it only sets the memlock option (it has a GUI setting for the nice option but selecting it does not add the entry in limits.conf). I tried adding the rtprio and nice options to limits.conf myself and then rebooting, but I still get the error. The actions were (both in Users and groups GNOME menu): 1.

echo -n "1-1.1:1.0" | sudo tee /sys/bus/usb/drivers/smsc95xx/unbindAutoStatic wrote:What sample rate are you using?44100Yesterday afternoon everything with my pi was almost exactly the way I wanted it to be. Posts: 32Joined: Tue Mar 12, 2013 5:02 pm by AutoStatic » Tue Mar 26, 2013 10:40 pm vmsda wrote:If I do everything the wiki suggests as far as usb audio is I still have to switch jack on and off, depending on what application I´m using and whether it needs jack, alsa, pulseaudio, etc. Fun with1 hour 43 min ago That did not post correctly1 hour 45 min ago Okee dokee.

You should at least remove the repeated lines. I'm having the time of my life with UbuntuStudio. > > Carlo > > > Zitat von Lucas Alberto Santos

I also opened up the jack control and hit start and got this ----------------------------------------------------- 02:43:38.522 Patchbay deactivated. 02:43:39.544 Statistics reset. 02:43:39.617 ALSA connection graph change. 02:43:40.751 ALSA connection change. 02:44:33.078 Startup Top Login or register to post comments Sun, 2009-10-11 10:24 #8 Pablo Fernández Offline Joined: 2007-02-20 Posts: Even if the ubuntu generic kernel is not optimised for audio work, I think The realtime kernel is probably not as stable as the normal kernel. I'm working on an embedded device.

well. Though I've had serious issues trying to overlock with Arch ARM.I should look into it a bit more. I've also described some common bottlenecks when doing low-latency audio on the RPi and how to work around them. For this reason, jackd is compiled with RT support disabled by default (but can be enabled at runtime via cli parameter).

Maybe they could be solved so you don't need to switch. http://rinfix.com/ubuntu-cannot/ubuntu-cannot-switch-tty.html I've pinned it down to either ubuntustudio or 64studio, but mostly because that's about all the audio/music distros i know about. Quote Postby StudioDave » Sat Apr 03, 2010 12:23 pm pkslot wrote:cat /proc/asound/cards gives me:Code: Select all0 [Live ]: EMU10K1 - SB Live! 5.1
Report a bug This report contains Public information Edit Everyone can see this information.

Now it's all taken a turn for the worse and I have no idea why. Anyway, still a multitude of bugs to be worked out, but I'm getting there on my project. And big chance that Ubuntu Studio or 64Studio will have the exact same issues.Sorry, i just don't know where to begin, but you're right.Here's my current setup:Ubuntu 9.10 (karmic)GNOME 2.28.1 (Ubuntu navigate here By unbinding the driver?Yes.

You can check by|| zcat /proc/config.gz | grep RT_GROUP_SCHEDHi/proc# find -name "*config*"there is no config.gz at /procThat would be the config of the currently running kernel. It seems that I can't get more than a total of 4. hw:0|hw:0|512|2|48000|0|0|nomon|swmeter|soft-mode|32bitcontrol device hw:0configuring for 48000Hz, period = 512 frames (10.7 ms), buffer = 2periodsALSA: final selected sample format for capture: 16bit little-endianALSA: use 2 periods for captureALSA: final selected sample format

It would be a pity if it turns out to be a simple issue that could've saved you another 2-3 hours installing and configuring.

  1. vBulletin 2000 - 2016, Jelsoft Enterprises Ltd.
  2. I've hijacked your thread over there for the past week, and other people are showing interest in the platform!)How awesome is that, Ardour on the RPi!More awesome than I could have
  3. And Ubuntu Studio 9.10 has the same RT kernel as Ubuntu 9.10 so that wouldn't be an option I reckon.
  4. Please check the messages window for more info. --------------------------------------------------------- i normally work with loops but also create quite a bit of original stuff using acid/reason rewired.
  5. I was getting this awesome distortion in my audio, no matter what i did, and whether or not it was capture or playback.
  6. [email protected] Discussion: cannot use real-time scheduling (FIFO at priority 10) (too old to reply) Marcos Guglielmetti 2008-08-07 08:14:38 UTC PermalinkRaw Message Hi FolksI cant start jack as a normal user (using
  7. See also the Jack FAQ: http://jackaudio.org/faq Note the Jack FAQ omits messing with "nice".
  8. All Rights Reserved.Sitemap [email protected] Discussion: [Jackit-devel] cannot use real-time scheduling (FIFO at priority 10) (too old to reply) '2+ 2007-12-05 14:41:35 UTC PermalinkRaw Message moved to fluxbuntualsa is working okay <

I rebooted and the jack server starts with out problems. After about 5 minutes USB Audio output stops.My end goal is to make a motorbike intercom using commodity devices, and I want a Pi to be part of it Code: Select And Ubuntu Studio 9.10 has the same RT kernel as Ubuntu 9.10 so that wouldn't be an option I reckon.It's as if the rt kernel isn't running properly, and i'm not But 4ins/2outs simultaneous seems to be too much for the USB, and will sometimes freeze the pi(again will try powered hub.) I'm a happy guy.

then just added the lines @audio - rtprio 99 @audio - memlock 250000 @audio - nice -10 ... If it doesn't work for you, try using the normal kernel with a larger frames/period setting in jack. Paul Perkins (catmatist) wrote on 2010-04-15: #14 Computers are flexible, if you do not tell the computer what you want, it will do something else instead. his comment is here Results 1 to 7 of 7 Thread: cannot use real-time scheduling with jack Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to

Also with 4 ins capture only fine. If I could start with your source that I know works, it would be greatly appreciated!Jack1:Code: Select allwget http://jackaudio.org/downloads/jack-audio-connection-kit-0.121.3.tar.gz
wget https://github.com/AutoStatic/jack-armel/raw/master/jack1_stable_armel.diff
tar zxvf jack-audio-connection-kit-0.121.3.tar.gz
cd jack-audio-connection-kit-0.121.3
patch -p1 -i ../jack1_stable_armel.diffJack2:Code: Select Modern versions of JACK request RT scheduling by default, though it can be disabled with the -r option. Great write up, I've been trying for a while now to get JACK to play nice and your binaries work like a charm!Thanks!

Ben Shadwick (benshadwick) wrote on 2010-02-07: #10 I've just started using Ubuntu 9.10 x64. Quote Postby pkslot » Fri Apr 02, 2010 8:20 pm AutoStatic wrote:Which problems? You're surrounded by experts on this forum! I need to process 4 inputs in real time with a stereo output.

Let it simplify your IT future.http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 '2+ 2007-12-07 00:14:18 UTC PermalinkRaw Message thank youi think now i know what to ask @ fluxbuntu-wikinot sure if it's gdm or notbut the look'n'feel Your support is critical and much appreciated. nistreamerWith which version would I be most likely to have success? could you describe how to compile it without VST support while i'm trying to figure out the suggestion from roaldz?

cannot use real-time scheduling (FIFO at priority 10) [for thread -2120620304, from thread -2120620304] (1: Operation not permitted) cannot create engine I have linux-rt and linux-headers-rt installed on a 64-bit fully sudo su -c 'echo @audio - rtprio 99 >> /etc/security/limits.conf' sudo su -c 'echo @audio - memlock 250000 >> /etc/security/limits.conf' sudo su -c 'echo @audio - nice -10 >> /etc/security/limits.conf' Is or something like thatNow, I am asking myself: how could we solve this for all the users? It's work in progress so if you have anything to add or you've spotted inconsistencies or even plain errors let me know.

So, correct me if I´m wrong but I think this would work: sudo echo ´@audio - rtprio 99´ >> /etc/security/limits.conf sudo echo ´@audio - memlock 250000´ >> /etc/security/limits.conf sudo echo ´@audio jackd 0.116.1 Copyright 2001-2005 Paul Davis and others. The -c has something to do with applying some sort of user parameter, rather than roots (not sure on that). Quote Postby StudioDave » Sat Apr 03, 2010 11:39 am pkslot wrote:StudioDave wrote:Please post the output from this command:uname -aI getCode: Select allLinux peter 2.6.31-9-rt #152-Ubuntu SMP PREEMPT RT Thu Oct

If I click the "realtime" checkbox in JACK Control, it won't work? So, I'm now determined to fix it and get more control and ability to run more than one audio app at a time with realtime JACK. Ben Shadwick (benshadwick) wrote on 2010-02-07: #11 Update: Looks like I didn't know I needed to add my account to the audio usergroup.