Re: Kubuntu 10.10 and real-time kernel
On Tue, 2011-03-01 at 01:21 +0200, Alexandros Bitoulas wrote: > missing packages like make-kpkg and others Oops, pardon, make-kpkg is a file from the package kernel-package > Furthermore, If I got the right > > > picture, this script has a default configure scheme set up which > > > probably is not suitable for my hardware (am I right?) Yesno, the arch can be ignored, it will build for AMD64 automatically too. > I also changed the ppa from maverick to lucid and I can only sudo apt-get > install only the linux-realtime kernel, not the lowlatency one (terminal > returns that it can't find the packet) which I would prefer to try. http://ppa.launchpad.net/abogani/ppa/ubuntu/pool/main/l/ Download by wget or a browser and install by running sudo dpkg -i package_name.deb -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
Στις Δευ 28 Φεβ 2011 23:18:14 Victor henri γράψατε: > > From: albitou...@yahoo.gr > > To: ralf.mard...@alice-dsl.net > > Subject: Re: Kubuntu 10.10 and real-time kernel > > Date: Mon, 28 Feb 2011 22:56:10 +0200 > > CC: ubuntu-studio-users@lists.ubuntu.com > > > > Στις Δευ 28 Φεβ 2011 11:42:19 Ralf Mardorf γράψατε: > > > On Sun, 2011-02-27 at 23:24 +0200, Alexandros Bitoulas wrote: > > > > Hello Ralf! Firstly thank you for all your information and > > > > suggestions for all your mails! > > > > > > > > >Στις Κυρ 27 Φεβ 2011 14:54:03 Ralf γράψατε: > > > > > On my machine (ASUS M2A-VM HDMI, AMD Athlon X2 Dual-Core Processor > > > > > > > > > > BE-2350, 2GB RAM, 2 PCI Terratec EWX 24/96 Envy24 cards and a > > > > > NVIDIA > > > > > > > > > > GeForce 7200 GS graphics) Edubuntu 10.10 x86 plus Ubuntu Studio > > > > > from > > > > > > > > the > > > > > > > > > repositories seems to be stable since I > > > > > > > > > > > > > > > > > > > > - build a kernel-rt by the attached script rt4us_[snip] > > > > > > > > > > (Note: for running the kernel-rt the package rtirq-init needs to be > > > > > > > > > > installed and the user has to be member of the group > > > > > > > > > > 'audio', /etc/security/limits.d is set up > > > > > > > > > > automatically by the packages) > > > > > > > > > > If you're booted to the current kernel 2.6.35-25-generic, you only > > > > > > > > > > need to push enter all the times. > > > > > > > > Does this script build the same kernel with the one if I just run > > > > sudo apt-get install linux-rt linux-headers-rt ? > > > > > > > > I mean, is this script essential for my real-time performance? Is > > > > this a better kernel for audio production? > > > > > > > > Thanks once again! > > > > > > > > Alex > > > > > > It's the latest kernel-rt, a kernel-rt from the repositories should be > > > (nearly) the same. > > > > Dear friends, > > > > To Ralf: I had some problems with the script and didn't manage to build > > the kernel (missing packages like make-kpkg and others which I couldn't > > even sudo apt-get install them). Furthermore, If I got the right > > picture, this script has a default configure scheme set up which > > probably is not suitable for my hardware (am I right?) and due to my > > lack of knowledge and experience I abandoned the efforts in order to not > > mis-configure something. For the record, in 10.10 real-time and > > low-latency kernels are not included at the official repositories. > > > > After researching on the net I decided to install the low-latency or the > > real- time kernel, after adding Alessio Igor Bogani's ppa to my system > > (Kubuntu 10.10, x64) with sudo add-apt-repository ppa:abogani/ppa. > > > > However when I sudo apt-get install linux-lowlatency or linux-realtime no > > package can be found! I realized that this does not work for the 10.10 > > distro as it is mentioned that it works only for Lucid or Natty! > > > > What can I do to install the latest low-latency or real-time of Alesio > > Bogani? > > > > I found also this: > > http://ubuntuforums.org/showpost.php?p=10072326&postcount=10 > > but it seems to download an older version of the low-latency and > > real-time kernels? > > I installed the repository for Lucid in my Maverick; i could install the > Real-time kernel without problem :-) > Hello Victor, I also changed the ppa from maverick to lucid and I can only sudo apt-get install only the linux-realtime kernel, not the lowlatency one (terminal returns that it can't find the packet) which I would prefer to try. Thanks, Alex > Victor > > > Please, I need your advice! > > > > Thanks, > > > > Alex -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
Στις Δευ 28 Φεβ 2011 23:03:36 Mike Holstein γράψατε: > On Mon, Feb 28, 2011 at 3:56 PM, Alexandros Bitoulas wrote: > > Στις Δευ 28 Φεβ 2011 11:42:19 Ralf Mardorf γράψατε: > > > On Sun, 2011-02-27 at 23:24 +0200, Alexandros Bitoulas wrote: > > > > Hello Ralf! Firstly thank you for all your information and > > > > suggestions for all your mails! > > > > > > > > >Στις Κυρ 27 Φεβ 2011 14:54:03 Ralf γράψατε: > > > > > On my machine (ASUS M2A-VM HDMI, AMD Athlon X2 Dual-Core Processor > > > > > > > > > > BE-2350, 2GB RAM, 2 PCI Terratec EWX 24/96 Envy24 cards and a > > > > > NVIDIA > > > > > > > > > > GeForce 7200 GS graphics) Edubuntu 10.10 x86 plus Ubuntu Studio > > > > > from > > > > > > > > the > > > > > > > > > repositories seems to be stable since I > > > > > > > > > > > > > > > > > > > > - build a kernel-rt by the attached script rt4us_[snip] > > > > > > > > > > (Note: for running the kernel-rt the package rtirq-init needs to be > > > > > > > > > > installed and the user has to be member of the group > > > > > > > > > > 'audio', /etc/security/limits.d is set up > > > > > > > > > > automatically by the packages) > > > > > > > > > > If you're booted to the current kernel 2.6.35-25-generic, you only > > > > > > > > > > need to push enter all the times. > > > > > > > > Does this script build the same kernel with the one if I just run > > > > sudo apt-get install linux-rt linux-headers-rt ? > > > > > > > > I mean, is this script essential for my real-time performance? Is > > > > this a better kernel for audio production? > > > > > > > > Thanks once again! > > > > > > > > Alex > > > > > > It's the latest kernel-rt, a kernel-rt from the repositories should be > > > (nearly) the same. > > > > Dear friends, > > > > To Ralf: I had some problems with the script and didn't manage to build > > the kernel (missing packages like make-kpkg and others which I couldn't > > even sudo > > apt-get install them). Furthermore, If I got the right picture, this > > script has a default configure scheme set up which probably is not > > suitable for my hardware (am I right?) and due to my lack of knowledge > > and experience I abandoned the efforts in order to not mis-configure > > something. For the record, > > in 10.10 real-time and low-latency kernels are not included at the > > official repositories. > > > > After researching on the net I decided to install the low-latency or the > > real- > > time kernel, after adding Alessio Igor Bogani's ppa to my system (Kubuntu > > 10.10, x64) with sudo add-apt-repository ppa:abogani/ppa. > > > > However when I sudo apt-get install linux-lowlatency or linux-realtime no > > package can be found! I realized that this does not work for the 10.10 > > distro > > as it is mentioned that it works only for Lucid or Natty! > > > > What can I do to install the latest low-latency or real-time of Alesio > > Bogani? > > > > I found also this: > > http://ubuntuforums.org/showpost.php?p=10072326&postcount=10 > > but it seems to download an older version of the low-latency and > > real-time kernels? > > > > i downloaded the debs from the PPA, and used them with maverick... both > Sorry for maybe asking easy/silly questions for you, but could someone help me downloading those deb files from this ppa? I can't find any deb files in there! :) > -lowlatency and -realtime... worked fine > > > Please, I need your advice! > > > > Thanks, > > > > Alex > > > > -- > > Ubuntu-Studio-users mailing list > > Ubuntu-Studio-users@lists.ubuntu.com > > Modify settings or unsubscribe at: > > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Kubuntu 10.10 and real-time kernel
> From: albitou...@yahoo.gr > To: ralf.mard...@alice-dsl.net > Subject: Re: Kubuntu 10.10 and real-time kernel > Date: Mon, 28 Feb 2011 22:56:10 +0200 > CC: ubuntu-studio-users@lists.ubuntu.com > > Στις Δευ 28 Φεβ 2011 11:42:19 Ralf Mardorf γράψατε: > > On Sun, 2011-02-27 at 23:24 +0200, Alexandros Bitoulas wrote: > > > Hello Ralf! Firstly thank you for all your information and suggestions > > > for all your mails! > > > > > > >Στις Κυρ 27 Φεβ 2011 14:54:03 Ralf γράψατε: > > > > On my machine (ASUS M2A-VM HDMI, AMD Athlon X2 Dual-Core Processor > > > > > > > > BE-2350, 2GB RAM, 2 PCI Terratec EWX 24/96 Envy24 cards and a NVIDIA > > > > > > > > GeForce 7200 GS graphics) Edubuntu 10.10 x86 plus Ubuntu Studio from > > > > > > the > > > > > > > repositories seems to be stable since I > > > > > > > > > > > > > > > > - build a kernel-rt by the attached script rt4us_[snip] > > > > > > > > (Note: for running the kernel-rt the package rtirq-init needs to be > > > > > > > > installed and the user has to be member of the group > > > > > > > > 'audio', /etc/security/limits.d is set up > > > > > > > > automatically by the packages) > > > > > > > > If you're booted to the current kernel 2.6.35-25-generic, you only > > > > > > > > need to push enter all the times. > > > > > > Does this script build the same kernel with the one if I just run sudo > > > apt-get install linux-rt linux-headers-rt ? > > > > > > I mean, is this script essential for my real-time performance? Is this > > > a better kernel for audio production? > > > > > > Thanks once again! > > > > > > Alex > > > > It's the latest kernel-rt, a kernel-rt from the repositories should be > > (nearly) the same. > > Dear friends, > > To Ralf: I had some problems with the script and didn't manage to build the > kernel (missing packages like make-kpkg and others which I couldn't even sudo > apt-get install them). Furthermore, If I got the right picture, this script > has a default configure scheme set up which probably is not suitable for my > hardware (am I right?) and due to my lack of knowledge and experience I > abandoned the efforts in order to not mis-configure something. For the > record, > in 10.10 real-time and low-latency kernels are not included at the official > repositories. > > After researching on the net I decided to install the low-latency or the real- > time kernel, after adding Alessio Igor Bogani's ppa to my system (Kubuntu > 10.10, x64) with sudo add-apt-repository ppa:abogani/ppa. > > However when I sudo apt-get install linux-lowlatency or linux-realtime no > package can be found! I realized that this does not work for the 10.10 distro > as it is mentioned that it works only for Lucid or Natty! > > What can I do to install the latest low-latency or real-time of Alesio Bogani? > > I found also this: > http://ubuntuforums.org/showpost.php?p=10072326&postcount=10 > but it seems to download an older version of the low-latency and real-time > kernels? I installed the repository for Lucid in my Maverick; i could install the Real-time kernel without problem :-) Victor > > Please, I need your advice! > > Thanks, > > Alex > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Mon, Feb 28, 2011 at 3:56 PM, Alexandros Bitoulas wrote: > Στις Δευ 28 Φεβ 2011 11:42:19 Ralf Mardorf γράψατε: > > On Sun, 2011-02-27 at 23:24 +0200, Alexandros Bitoulas wrote: > > > Hello Ralf! Firstly thank you for all your information and suggestions > > > for all your mails! > > > > > > >Στις Κυρ 27 Φεβ 2011 14:54:03 Ralf γράψατε: > > > > On my machine (ASUS M2A-VM HDMI, AMD Athlon X2 Dual-Core Processor > > > > > > > > BE-2350, 2GB RAM, 2 PCI Terratec EWX 24/96 Envy24 cards and a NVIDIA > > > > > > > > GeForce 7200 GS graphics) Edubuntu 10.10 x86 plus Ubuntu Studio from > > > > > > the > > > > > > > repositories seems to be stable since I > > > > > > > > > > > > > > > > - build a kernel-rt by the attached script rt4us_[snip] > > > > > > > > (Note: for running the kernel-rt the package rtirq-init needs to be > > > > > > > > installed and the user has to be member of the group > > > > > > > > 'audio', /etc/security/limits.d is set up > > > > > > > > automatically by the packages) > > > > > > > > If you're booted to the current kernel 2.6.35-25-generic, you only > > > > > > > > need to push enter all the times. > > > > > > Does this script build the same kernel with the one if I just run sudo > > > apt-get install linux-rt linux-headers-rt ? > > > > > > I mean, is this script essential for my real-time performance? Is this > > > a better kernel for audio production? > > > > > > Thanks once again! > > > > > > Alex > > > > It's the latest kernel-rt, a kernel-rt from the repositories should be > > (nearly) the same. > > Dear friends, > > To Ralf: I had some problems with the script and didn't manage to build the > kernel (missing packages like make-kpkg and others which I couldn't even > sudo > apt-get install them). Furthermore, If I got the right picture, this script > has a default configure scheme set up which probably is not suitable for my > hardware (am I right?) and due to my lack of knowledge and experience I > abandoned the efforts in order to not mis-configure something. For the > record, > in 10.10 real-time and low-latency kernels are not included at the official > repositories. > > After researching on the net I decided to install the low-latency or the > real- > time kernel, after adding Alessio Igor Bogani's ppa to my system (Kubuntu > 10.10, x64) with sudo add-apt-repository ppa:abogani/ppa. > > However when I sudo apt-get install linux-lowlatency or linux-realtime no > package can be found! I realized that this does not work for the 10.10 > distro > as it is mentioned that it works only for Lucid or Natty! > > What can I do to install the latest low-latency or real-time of Alesio > Bogani? > > I found also this: > http://ubuntuforums.org/showpost.php?p=10072326&postcount=10 > but it seems to download an older version of the low-latency and real-time > kernels? > > i downloaded the debs from the PPA, and used them with maverick... both -lowlatency and -realtime... worked fine > Please, I need your advice! > > Thanks, > > Alex > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users > -- MH http://opensourcemusician.libsyn.com/ http://wnclug.ourproject.org/ -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
Στις Δευ 28 Φεβ 2011 11:42:19 Ralf Mardorf γράψατε: > On Sun, 2011-02-27 at 23:24 +0200, Alexandros Bitoulas wrote: > > Hello Ralf! Firstly thank you for all your information and suggestions > > for all your mails! > > > > >Στις Κυρ 27 Φεβ 2011 14:54:03 Ralf γράψατε: > > > On my machine (ASUS M2A-VM HDMI, AMD Athlon X2 Dual-Core Processor > > > > > > BE-2350, 2GB RAM, 2 PCI Terratec EWX 24/96 Envy24 cards and a NVIDIA > > > > > > GeForce 7200 GS graphics) Edubuntu 10.10 x86 plus Ubuntu Studio from > > > > the > > > > > repositories seems to be stable since I > > > > > > > > > > > > - build a kernel-rt by the attached script rt4us_[snip] > > > > > > (Note: for running the kernel-rt the package rtirq-init needs to be > > > > > > installed and the user has to be member of the group > > > > > > 'audio', /etc/security/limits.d is set up > > > > > > automatically by the packages) > > > > > > If you're booted to the current kernel 2.6.35-25-generic, you only > > > > > > need to push enter all the times. > > > > Does this script build the same kernel with the one if I just run sudo > > apt-get install linux-rt linux-headers-rt ? > > > > I mean, is this script essential for my real-time performance? Is this > > a better kernel for audio production? > > > > Thanks once again! > > > > Alex > > It's the latest kernel-rt, a kernel-rt from the repositories should be > (nearly) the same. Dear friends, To Ralf: I had some problems with the script and didn't manage to build the kernel (missing packages like make-kpkg and others which I couldn't even sudo apt-get install them). Furthermore, If I got the right picture, this script has a default configure scheme set up which probably is not suitable for my hardware (am I right?) and due to my lack of knowledge and experience I abandoned the efforts in order to not mis-configure something. For the record, in 10.10 real-time and low-latency kernels are not included at the official repositories. After researching on the net I decided to install the low-latency or the real- time kernel, after adding Alessio Igor Bogani's ppa to my system (Kubuntu 10.10, x64) with sudo add-apt-repository ppa:abogani/ppa. However when I sudo apt-get install linux-lowlatency or linux-realtime no package can be found! I realized that this does not work for the 10.10 distro as it is mentioned that it works only for Lucid or Natty! What can I do to install the latest low-latency or real-time of Alesio Bogani? I found also this: http://ubuntuforums.org/showpost.php?p=10072326&postcount=10 but it seems to download an older version of the low-latency and real-time kernels? Please, I need your advice! Thanks, Alex -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Sun, 2011-02-27 at 23:24 +0200, Alexandros Bitoulas wrote: > Hello Ralf! Firstly thank you for all your information and suggestions > for all your mails! > > >Στις Κυρ 27 Φεβ 2011 14:54:03 Ralf γράψατε: > > > On my machine (ASUS M2A-VM HDMI, AMD Athlon X2 Dual-Core Processor > > > BE-2350, 2GB RAM, 2 PCI Terratec EWX 24/96 Envy24 cards and a NVIDIA > > > GeForce 7200 GS graphics) Edubuntu 10.10 x86 plus Ubuntu Studio from > the > > > repositories seems to be stable since I > > > > > > - build a kernel-rt by the attached script rt4us_[snip] > > > (Note: for running the kernel-rt the package rtirq-init needs to be > > > installed and the user has to be member of the group > > > 'audio', /etc/security/limits.d is set up > > > automatically by the packages) > > > If you're booted to the current kernel 2.6.35-25-generic, you only > > > need to push enter all the times. > > Does this script build the same kernel with the one if I just run sudo > apt-get install linux-rt linux-headers-rt ? > > I mean, is this script essential for my real-time performance? Is this > a better kernel for audio production? > > Thanks once again! > > Alex It's the latest kernel-rt, a kernel-rt from the repositories should be (nearly) the same. -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
Hello Ralf! Firstly thank you for all your information and suggestions for all your mails! >Στις Κυρ 27 Φεβ 2011 14:54:03 Ralf γράψατε: > On my machine (ASUS M2A-VM HDMI, AMD Athlon X2 Dual-Core Processor > BE-2350, 2GB RAM, 2 PCI Terratec EWX 24/96 Envy24 cards and a NVIDIA > GeForce 7200 GS graphics) Edubuntu 10.10 x86 plus Ubuntu Studio from the > repositories seems to be stable since I > > - build a kernel-rt by the attached script rt4us_[snip] > (Note: for running the kernel-rt the package rtirq-init needs to be > installed and the user has to be member of the group > 'audio', /etc/security/limits.d is set up >automatically by the packages) > If you're booted to the current kernel 2.6.35-25-generic, you only > need to push enter all the times. Does this script build the same kernel with the one if I just run sudo apt-get install linux-rt linux-headers-rt ? I mean, is this script essential for my real-time performance? Is this a better kernel for audio production? Thanks once again! Alex -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Kubuntu 10.10 and real-time kernel
On Sun, 2011-02-27 at 14:38 +0100, Victor henri wrote: > > > > Date: Sun, 27 Feb 2011 11:47:24 +0100 > > Subject: Re: Kubuntu 10.10 and real-time kernel > > From: abog...@ubuntu.com > > To: ubuntu-studio-users@lists.ubuntu.com > > > > Hi, > > > > 2011/2/26 Hartmut Noack : > > [...] > > > Kernel and System-Setup are really important. If a capable > basic-system is > > > set up carefully, the desktop-system does not matter much. > > [...] > > > > I agree, definitely. > > > > Please note that Ubuntu Studio don't offer that level of setup at > the moment. > > Hello, > > Could you please be more specific on what is missing in Ubuntu Studio > to get that level of setup? > > This what I know already : > > - Ubuntu Studio already automatically configure > the /etc/security/limits.d/audio.conf by adding the lines : > > @audio - rtprio 95 > @audio - memlockunlimited rtprio should be 99 and I bet it is 99, there should be an additional file: edubuntu@edubuntu:/home/music/edubuntu$ cat /etc/security/limits.d/audio.conf # Provided by the jackd package. # # Changes to this file will be preserved. # # If you want to enable/disable realtime permissions, run # #dpkg-reconfigure -p high jackd @audio - rtprio 95 @audio - memlockunlimited #@audio - nice -19 edubuntu@edubuntu:/home/music/edubuntu$ cat /etc/security/limits.d/ubuntustudio-audio-rtprio.conf # Installed by the ubuntustudio-audio package @audio - rtprio 99 edubuntu@edubuntu:/home/music/edubuntu$ > > You just have to add yourself in the 'audio' group manually. > > - However, there seem to be a problem if you use a generic kernel in > Ubuntu 10.10, because in Ubuntu 10.10 the "RT_GROUP-SCHED" option in > the kernel is activated. As far as I understand, this means that doing > the previous manipulation (ie configuring > the /etc/security/limits.d/audio.conf and adding yourself in the audio > group) won't allow real-time erformance for JAck... Yes, RT_GROUP-SCHED has to be not set. > > "The RT_GROUP_SCHED option overrides everything that may have been > configured in limits.conf and makes it very complex for regular users > to get access to the realtime scheduling that JACK works best with. " > > This comes from Jack-audio-connection-kit FAQ > http://jackaudio.org/linux_group_sched > > Ok so the only option is to use a precompiled real-time kernel, or a > preemnt kernel having that RT_GROUP_SCHED option disabled (for example > in Alessio Bogani's ppa), (or a "home-compiled" kernel, which is what > i'm doing), or use other solutions like it is said in the jack FAQ > page I mentioned . Or even a generic with RT_GROUP-SCHED disabled. > > - The rtirq-init script has to be used; Not necessarily, it doesn't have much effect, but it can't harm to use it. > > Is there something else in Ubuntu Studio that has to be set up? You e.g. can run ALSA MIDI latency test and compare settings, e.g. make an USB port head of the USB ports by editing rtirq and see if latency/jitter will decrease etc. ... Remove any unneeded deamon, AppAmor, Firewalls etc. ... I didn't do that for 10.10, but remember a DAW isn't a washing machine, multi-user server or toaster, it's a DAW. > > Thank you very much. > > Victor > > > > > > Ciao, > > Alessio > > > > -- > > Ubuntu-Studio-users mailing list > > Ubuntu-Studio-users@lists.ubuntu.com > > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Asalaam alikum sisters and brothers of Bikini Bottom, do the Bob attack today, http://www.wmata.com/rail/schedules.cfm. Allah is great. N.S. Al Ineeater -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Sun, 2011-02-27 at 15:24 +0200, Alexandros Bitoulas wrote: > Στις Κυρ 27 Φεβ 2011 12:47:24 Alessio Igor Bogani γράψατε: > > Hi, > > > > 2011/2/26 Hartmut Noack : > > [...] > > > > > Kernel and System-Setup are really important. If a capable basic-system > > > is set up carefully, the desktop-system does not matter much. > > > > [...] > > > > I agree, definitely. > > > > Please note that Ubuntu Studio don't offer that level of setup at the > > moment. > > > > Ciao, > > Alessio > > Hello Alessio! > > [to Hartmut also:] So, what what can I do to set-up my system "carefully", > What do you mean by that? > > I have just upgraded my vanilla Ubuntu 10.04 to the vanilla Kubuntu 10.10 and > then added from the repositories all the audio applications that I needed. Is > this ok? I can't say anything about the version update, but installing audio packages is ok. At the moment you should avoid to choose 3rd party packages to keep your Linux stable and don't forget to backup your Linux. > > [(maybe) off-topic:] Alesio, which in your opinion is the best distro or > system > to use for audio production in terms of "system/kernel set-up"? Ralf: "64 Studio 3.3 is the best distro if you won't tweak yourself, unfortunately it's much too old now, but a new version might be released in April." http://www.64studio.com/ Note: They do OEM stuff for music, so no pulseaudio and other annoying desktop stuff by default. AV Linux and Planet CCRMA should be good too, avoid Suse, openArtist ... Debian and Suse are good distros too, but they aren't easy to set up to become a DAW if you don't have much knowledge. > > Thanks, > > Alex > -- Asalaam alikum sisters and brothers of Bikini Bottom, do the Bob attack today, http://www.wmata.com/rail/schedules.cfm. Allah is great. N.S. Al Ineeater -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
RE: Kubuntu 10.10 and real-time kernel
> Date: Sun, 27 Feb 2011 11:47:24 +0100 > Subject: Re: Kubuntu 10.10 and real-time kernel > From: abog...@ubuntu.com > To: ubuntu-studio-users@lists.ubuntu.com > > Hi, > > 2011/2/26 Hartmut Noack : > [...] > > Kernel and System-Setup are really important. If a capable basic-system is > > set up carefully, the desktop-system does not matter much. > [...] > > I agree, definitely. > > Please note that Ubuntu Studio don't offer that level of setup at the moment. Hello, Could you please be more specific on what is missing in Ubuntu Studio to get that level of setup? This what I know already : - Ubuntu Studio already automatically configure the /etc/security/limits.d/audio.conf by adding the lines : @audio - rtprio 95 @audio - memlockunlimited You just have to add yourself in the 'audio' group manually. - However, there seem to be a problem if you use a generic kernel in Ubuntu 10.10, because in Ubuntu 10.10 the "RT_GROUP-SCHED" option in the kernel is activated. As far as I understand, this means that doing the previous manipulation (ie configuring the /etc/security/limits.d/audio.conf and adding yourself in the audio group) won't allow real-time erformance for JAck... "The RT_GROUP_SCHED option overrides everything that may have been configured in limits.conf and makes it very complex for regular users to get access to the realtime scheduling that JACK works best with. " This comes from Jack-audio-connection-kit FAQ http://jackaudio.org/linux_group_sched Ok so the only option is to use a precompiled real-time kernel, or a preemnt kernel having that RT_GROUP_SCHED option disabled (for example in Alessio Bogani's ppa), (or a "home-compiled" kernel, which is what i'm doing), or use other solutions like it is said in the jack FAQ page I mentioned . - The rtirq-init script has to be used; Is there something else in Ubuntu Studio that has to be set up? Thank you very much. Victor > > Ciao, > Alessio > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Sun, 2011-02-27 at 14:21 +0100, Ralf wrote: > On Sun, 2011-02-27 at 15:09 +0200, Alexandros Bitoulas wrote: > > > On Sat, Feb 26, 2011 at 2:52 PM, Scott Lavender > > wrote: > > > Oh, I forgot to mention that JACK now asks you if you want to enable -rt > > > privileges. > > > > > > If you answer 'yes' and the user is in the 'audio' group then you should > > > have better performance. > > Once again Scott to confirm, I still can answer yes even at the case that I > > don't use the realtime kernel? I suppose the answer is no, isn't it? > > > > > If you didn't answer 'yes' you may still be able to uninstall JACK > > > completely and resinstall and answer again. Ok, perhaps you are able to answer y if you answered n before, but hopefully it won't work the other way round. Imagine upgrades done automatically. > > This is only for the group audio. You can add or delete groups later. > You can add or remove users from groups later. > Even if you shouldn't need a group audio it has no negative impact to > your system, if there is such a group and if there should or shouldn't > be users member of this group. > > Btw. I don't think reinstalling and giving a different answer will > switch bag the settings. At least I don't wish to have a package that > will remove something I might have set up manually before. > > Anyway. You should answer yes. Security limits, resp. a group for > security limits won't break functionality for your OS, even if you are > booted to a non-rt kernel. > > Cheers! > > Ralf > > > > > > > Hope this helps. > > > > > -- Asalaam alikum sisters and brothers of Bikini Bottom, do the Bob attack today, http://www.wmata.com/rail/schedules.cfm. Allah is great. N.S. Al Ineeater -- Asalaam alikum sisters and brothers of Bikini Bottom, do the Bob attack today, http://www.wmata.com/rail/schedules.cfm. Allah is great. N.S. Al Ineeater -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
Στις Κυρ 27 Φεβ 2011 12:47:24 Alessio Igor Bogani γράψατε: > Hi, > > 2011/2/26 Hartmut Noack : > [...] > > > Kernel and System-Setup are really important. If a capable basic-system > > is set up carefully, the desktop-system does not matter much. > > [...] > > I agree, definitely. > > Please note that Ubuntu Studio don't offer that level of setup at the > moment. > > Ciao, > Alessio Hello Alessio! [to Hartmut also:] So, what what can I do to set-up my system "carefully", What do you mean by that? I have just upgraded my vanilla Ubuntu 10.04 to the vanilla Kubuntu 10.10 and then added from the repositories all the audio applications that I needed. Is this ok? [(maybe) off-topic:] Alesio, which in your opinion is the best distro or system to use for audio production in terms of "system/kernel set-up"? Thanks, Alex -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Sun, 2011-02-27 at 15:09 +0200, Alexandros Bitoulas wrote: > > On Sat, Feb 26, 2011 at 2:52 PM, Scott Lavender > wrote: > > Oh, I forgot to mention that JACK now asks you if you want to enable -rt > > privileges. > > > > If you answer 'yes' and the user is in the 'audio' group then you should > > have better performance. > Once again Scott to confirm, I still can answer yes even at the case that I > don't use the realtime kernel? I suppose the answer is no, isn't it? > > > If you didn't answer 'yes' you may still be able to uninstall JACK > > completely and resinstall and answer again. This is only for the group audio. You can add or delete groups later. You can add or remove users from groups later. Even if you shouldn't need a group audio it has no negative impact to your system, if there is such a group and if there should or shouldn't be users member of this group. Btw. I don't think reinstalling and giving a different answer will switch bag the settings. At least I don't wish to have a package that will remove something I might have set up manually before. Anyway. You should answer yes. Security limits, resp. a group for security limits won't break functionality for your OS, even if you are booted to a non-rt kernel. Cheers! Ralf > > > > Hope this helps. > > -- Asalaam alikum sisters and brothers of Bikini Bottom, do the Bob attack today, http://www.wmata.com/rail/schedules.cfm. Allah is great. N.S. Al Ineeater -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
Στις Κυρ 27 Φεβ 2011 00:17:23 Hartmut Noack γράψατε: > Am 26.02.2011 21:52, schrieb Scott Lavender: > > On Sat, Feb 26, 2011 at 2:16 PM, Alexandros Bitoulaswrote: > >> Hello everybody! > > > > Hi Alexandros! > > > >> I run kubuntu 10.10 with 2.6.35-25-generic kernel and I am very pleased > >> and enthusiast about it's aesthetic feel. > >> > >> However, I want to record live my guitar. With this kernel, the latency > >> that I > >> get in Jack, (with 512 frames/period, 44100 Sample Rate and 2 > >> Periods/Buffer) > >> is 23.2 msec which is a little bit annoying. If I lower the Frames to > >> 256 I get 11.6 but I have many Xruns. > > > > it would be helpful to know what you audio interface is to perhaps help > > you get better performance. > > > > Also, in some cases (and yours might be one) if you add the user to the > > 'audio' group it helps performance as well. > > > >> So, I am thinking to install the realtime kernel. The question is: are > >> Kubuntu > >> 10.10 and real-time kernel full compatible with each other? Do I need to > >> make > >> any considerations/modifications in my system before installing the > >> real-time > >> kernel. Did anyone had any problems with Kubuntu 10.10 and real-time > >> kernel? > > > > Good question. But since it's all based on Ubuntu I wouldn't expect much > > deviation in performance except in specific, restricted cases. > > > >> I searched on the web and I only found some generic comments like "that > >> KDE isn't suitable for audio production", but with no serious support > >> that validate those comments. > > > > I think many people would argue with that position. > > KDE is not as "light" in terms of memory/CPU-usage as Fluxbox but if one > disabeles the desktop-search-system, KDE will have little impact on the > audio-performance. > Kernel and System-Setup are really important. If a capable basic-system > is set up carefully, the desktop-system does not matter much. Running > KDE instead of Fluxbox will not have much more impact than another Synth > started in a session. > > I use to run KDE4.3 under Suse 11.2 with jengelh-RT-kernel on my > quad-core workstation and tested the same system with Fluxbox and LXDE > also. I did not see any improvement of performance so I stuck with KDE > for convenience ;-) > > best regs > > HZN > Hello Hartmut! All right, this is valuable information/experience! Thanks for sharing! Alex > > A good friend created and maintains that KXStudio distro which is based > > on Ubuntu Studio and uses KDE. It's brilliant and beautiful and > > includes a -realtime kernel I believe. It's a live DVD so I would > > highly recommend researching it. You can find it here: > > http://kxstudio.sourceforge.net/ > > > >> I am looking forward to your replies and comments! > >> > >> Thank you in advance, > >> > >> Alex > >> > >> -- > >> Ubuntu-Studio-users mailing list > >> Ubuntu-Studio-users@lists.ubuntu.com > >> Modify settings or unsubscribe at: > >> https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users > > > > ScottL -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
> On Sat, Feb 26, 2011 at 2:52 PM, Scott Lavender wrote: > Oh, I forgot to mention that JACK now asks you if you want to enable -rt > privileges. > > If you answer 'yes' and the user is in the 'audio' group then you should > have better performance. Once again Scott to confirm, I still can answer yes even at the case that I don't use the realtime kernel? I suppose the answer is no, isn't it? > If you didn't answer 'yes' you may still be able to uninstall JACK > completely and resinstall and answer again. > > Hope this helps. -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
> On Sat, Feb 26, 2011 at 2:16 PM, Alexandros Bitoulas wrote: > > Hello everybody! > > Hi Alexandros! > Hello Scott, thanks for your reply! > > I run kubuntu 10.10 with 2.6.35-25-generic kernel and I am very pleased > > and enthusiast about it's aesthetic feel. > > > > However, I want to record live my guitar. With this kernel, the latency > > that I > > get in Jack, (with 512 frames/period, 44100 Sample Rate and 2 > > Periods/Buffer) > > is 23.2 msec which is a little bit annoying. If I lower the Frames to 256 > > I get 11.6 but I have many Xruns. > > it would be helpful to know what you audio interface is to perhaps help you > get better performance. My on board card is (if I run lspci:) 00:09.0 Audio device: nVidia Corporation MCP73 High Definition Audio (rev a1) And to record my guitar I have recently bought this (cheapest) T.BONE USB-1G (http://www.thomann.de/gb/the_tbone_usb1g.htm?sid=a939dfae3529d54ead5d2523ae73a789) where with lsusb I take: Bus 002 Device 005: ID 0d8c:0008 C-Media Electronics, Inc. Since I am new with (ubuntu) audio/studio software and hardware, I do not know how to further appreciate and make use this information with regard to your comments! Any further comments or thoughts on that are more than welcome! > Also, in some cases (and yours might be one) if you add the user to the > 'audio' group it helps performance as well. Should I add my user name to the 'audio' group even with the 2.6.35-25-generic kernel, or you are referring to the case that I install the realtime kernel? > > So, I am thinking to install the realtime kernel. The question is: are > > Kubuntu > > 10.10 and real-time kernel full compatible with each other? Do I need to > > make > > any considerations/modifications in my system before installing the > > real-time > > kernel. Did anyone had any problems with Kubuntu 10.10 and real-time > > kernel? > > Good question. But since it's all based on Ubuntu I wouldn't expect much > deviation in performance except in specific, restricted cases. > > > I searched on the web and I only found some generic comments like "that > > KDE isn't suitable for audio production", but with no serious support > > that validate those comments. > > I think many people would argue with that position. > > A good friend created and maintains that KXStudio distro which is based on > Ubuntu Studio and uses KDE. It's brilliant and beautiful and includes a > -realtime kernel I believe. It's a live DVD so I would highly recommend > researching it. You can find it here: > http://kxstudio.sourceforge.net/ Well, to be honest I don't feel the need to migrate to another desktop environment currently, but yes I will give it a try researching it! Thanks! > > I am looking forward to your replies and comments! > > > > Thank you in advance, > > > > Alex > > > > -- > > Ubuntu-Studio-users mailing list > > Ubuntu-Studio-users@lists.ubuntu.com > > Modify settings or unsubscribe at: > > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users > > ScottL P.S. Scott, sorry for double sending this message, I forgot to c.c to the ubuntu-studio users list mail! Alex -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Sun, 2011-02-27 at 11:47 +0100, Alessio Igor Bogani wrote:
> Hi,
>
> 2011/2/26 Hartmut Noack :
> [...]
> > Kernel and System-Setup are really important. If a capable basic-system is
> > set up carefully, the desktop-system does not matter much.
> [...]
>
> I agree, definitely.
>
> Please note that Ubuntu Studio don't offer that level of setup at the moment.
>
> Ciao,
> Alessio
>
On my machine (ASUS M2A-VM HDMI, AMD Athlon X2 Dual-Core Processor
BE-2350, 2GB RAM, 2 PCI Terratec EWX 24/96 Envy24 cards and a NVIDIA
GeForce 7200 GS graphics) Edubuntu 10.10 x86 plus Ubuntu Studio from the
repositories seems to be stable since I
- build a kernel-rt by the attached script rt4us_[snip]
(Note: for running the kernel-rt the package rtirq-init needs to be
installed and the user has to be member of the group
'audio', /etc/security/limits.d is set up
automatically by the packages)
If you're booted to the current kernel 2.6.35-25-generic, you only
need to push enter all the times.
- to run the kernel build script 1. install the packages
fakeroot, build-essential, crash, kexec-tools, makedumpfile,
kernel-wedge
2. run 'sudo apt-get build-deb linux'
3. then install the packages git-core, libncurse5, libncurse5-dev,
libelf-dev, asciidoc, binutils-dev, kernel-package, make-kpkg
Not all packages might be needed for this way of building a kernel and
perhaps some basic packages are missing, or they'll be dependencies
that automatically will be installed too.
- for Envy24 cards you need to edit /usr/share/alsa/cards/ICE1724.conf,
see or copy and paste the attached script (perhaps you need to do some
settings for KDE too, I'm using GNOME).
- fluidsynth-dssi is broken, this can be fixed by adding
'deb http://ftp.de.debian.org/debian wheezy main' to Synaptic's
repository list (ignore messages regarding to the keyring), then
reload and upgrade/install fluidsynth, libfluidsynth1,
libfluidsynth-dev and liblash2 ONLY. Keep liblash3 additionally.
After doing this, DISABLE all repository for Wheezy, e.g. the source
repository too. Don't use Wheezy repositories for anything else.
- If you've got issues with a NVIDIA graphics, simply use 3D for non-rt
kernels only. Btw. it's said that it anyway should be better to use the
nv driver for kernel-rt.
Add 2 xorg.conf to /etc/X11 (xorg.conf.nv and xorg.conf.nvidia) and the
attached script to /etc/rcS.d/
Take care to run it before X is started, e.g. list (ls) /etc/X11:
/etc/rcS.d/README /etc/rcS.d/S25brltty/etc/rcS.d/S47lm-sensors
/etc/rcS.d/S69switch_xorg.conf
/etc/rcS.d/S13pcmciautils /etc/rcS.d/S37apparmor /etc/rcS.d/S55urandom
/etc/rcS.d/S70x11-common
I guess the 'exit 0' line can be deleted.
On my Edubuntu Studio 10.10 at the moment just the mouse wheel (strange)
seems to be not working, but anything else seems to be ok.
FWIW, until now beside the kernel-rt I only build rubber band, dssi and
qtractor myself, anything else is from the repositories.
+ 2 Cents
Hth,
Ralf
--
Asalaam alikum sisters and brothers of Bikini Bottom,
do the Bob attack today, http://www.wmata.com/rail/schedules.cfm.
Allah is great.
N.S. Al Ineeater
rt4us_nv+restore_grub.cfg_disabled
Description: application/shellscript
#
# Configuration for the ICE1712 (Envy24) chip
#
# default with dmix & dsnoop
ICE1712.pcm.default {
@args [ CARD ]
@args.CARD {
type string
}
type asym
playback.pcm {
type plug
slave.pcm {
@func concat
strings [ "dmix:" $CARD ",FORMAT=S32_LE" ]
}
}
capture.pcm {
type plug
slave.pcm {
@func concat
strings [ "dsnoop:" $CARD ",FORMAT=S32_LE" ]
}
}
}
ICE1712.pcm.front.0 {
@args [ CARD ]
@args.CARD {
type string
}
type route
ttable.0.0 1
ttable.1.1 1
slave.pcm {
type hw
card $CARD
}
fix PA issue
slave.format S32_LE
slave.channels 10
##
}
ICE1712.pcm.surround40.0 {
@args [ CARD ]
@args.CARD {
type string
}
type route
ttable.0.0 1
ttable.1.1 1
ttable.2.2 1
ttable.3.3 1
slave.pcm {
type hw
card $CARD
}
}
ICE1712.pcm.surround51.0 {
@args [ CARD ]
@args.CARD {
type string
}
type route
ttable.0.0 1
ttable.1.1 1
ttable.2.2 1
ttable.3.3 1
ttable.4.4 1
ttable.5.5 1
slave.pcm {
type hw
card $CARD
}
}
ICE1712.pcm.iec958.0 {
@args [ CARD AES0 AES1 AES2 AES3 ]
@args.CARD {
type string
}
@args.AES0 {
type integer
}
@args.AES1 {
type integer
}
@args.AES2 {
type integer
}
@args.AES3 {
type integer
}
type asym
playback.pcm {
type hooks
slave.pcm {
type route
ttable.0.8 1
ttable.1.9 1
slave.pcm {
type hw
card $CARD
}
slave.format S32_LE
slave.channels 10
}
hooks.0 {
type ctl_elems
hook_args [
{
interface PCM
name "IEC958 Playback PCM Stream"
lock true
preserve true
value [ $AES0 $AES1 $AES2 $AES3 ]
}
]
}
}
capture.pcm {
type route
ttable.0.8 1
ttable.1.9 1
slav
Re: Kubuntu 10.10 and real-time kernel
Hi, 2011/2/26 Hartmut Noack : [...] > Kernel and System-Setup are really important. If a capable basic-system is > set up carefully, the desktop-system does not matter much. [...] I agree, definitely. Please note that Ubuntu Studio don't offer that level of setup at the moment. Ciao, Alessio -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
Am 26.02.2011 21:52, schrieb Scott Lavender: On Sat, Feb 26, 2011 at 2:16 PM, Alexandros Bitoulaswrote: Hello everybody! Hi Alexandros! I run kubuntu 10.10 with 2.6.35-25-generic kernel and I am very pleased and enthusiast about it's aesthetic feel. However, I want to record live my guitar. With this kernel, the latency that I get in Jack, (with 512 frames/period, 44100 Sample Rate and 2 Periods/Buffer) is 23.2 msec which is a little bit annoying. If I lower the Frames to 256 I get 11.6 but I have many Xruns. it would be helpful to know what you audio interface is to perhaps help you get better performance. Also, in some cases (and yours might be one) if you add the user to the 'audio' group it helps performance as well. So, I am thinking to install the realtime kernel. The question is: are Kubuntu 10.10 and real-time kernel full compatible with each other? Do I need to make any considerations/modifications in my system before installing the real-time kernel. Did anyone had any problems with Kubuntu 10.10 and real-time kernel? Good question. But since it's all based on Ubuntu I wouldn't expect much deviation in performance except in specific, restricted cases. I searched on the web and I only found some generic comments like "that KDE isn't suitable for audio production", but with no serious support that validate those comments. I think many people would argue with that position. KDE is not as "light" in terms of memory/CPU-usage as Fluxbox but if one disabeles the desktop-search-system, KDE will have little impact on the audio-performance. Kernel and System-Setup are really important. If a capable basic-system is set up carefully, the desktop-system does not matter much. Running KDE instead of Fluxbox will not have much more impact than another Synth started in a session. I use to run KDE4.3 under Suse 11.2 with jengelh-RT-kernel on my quad-core workstation and tested the same system with Fluxbox and LXDE also. I did not see any improvement of performance so I stuck with KDE for convenience ;-) best regs HZN A good friend created and maintains that KXStudio distro which is based on Ubuntu Studio and uses KDE. It's brilliant and beautiful and includes a -realtime kernel I believe. It's a live DVD so I would highly recommend researching it. You can find it here: http://kxstudio.sourceforge.net/ I am looking forward to your replies and comments! Thank you in advance, Alex -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users ScottL -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Sat, Feb 26, 2011 at 2:52 PM, Scott Lavender wrote: > > > On Sat, Feb 26, 2011 at 2:16 PM, Alexandros Bitoulas > wrote: > >> Hello everybody! >> >> > Hi Alexandros! > > >> I run kubuntu 10.10 with 2.6.35-25-generic kernel and I am very pleased >> and >> enthusiast about it's aesthetic feel. >> >> However, I want to record live my guitar. With this kernel, the latency >> that I >> get in Jack, (with 512 frames/period, 44100 Sample Rate and 2 >> Periods/Buffer) >> is 23.2 msec which is a little bit annoying. If I lower the Frames to 256 >> I >> get 11.6 but I have many Xruns. >> >> > it would be helpful to know what you audio interface is to perhaps help you > get better performance. > > Also, in some cases (and yours might be one) if you add the user to the > 'audio' group it helps performance as well. > > >> So, I am thinking to install the realtime kernel. The question is: are >> Kubuntu >> 10.10 and real-time kernel full compatible with each other? Do I need to >> make >> any considerations/modifications in my system before installing the >> real-time >> kernel. Did anyone had any problems with Kubuntu 10.10 and real-time >> kernel? >> >> > Good question. But since it's all based on Ubuntu I wouldn't expect much > deviation in performance except in specific, restricted cases. > > >> I searched on the web and I only found some generic comments like "that >> KDE >> isn't suitable for audio production", but with no serious support that >> validate those comments. >> >> > I think many people would argue with that position. > > A good friend created and maintains that KXStudio distro which is based on > Ubuntu Studio and uses KDE. It's brilliant and beautiful and includes a > -realtime kernel I believe. It's a live DVD so I would highly recommend > researching it. You can find it here: > http://kxstudio.sourceforge.net/ > > >> I am looking forward to your replies and comments! >> >> Thank you in advance, >> >> Alex >> >> -- >> Ubuntu-Studio-users mailing list >> Ubuntu-Studio-users@lists.ubuntu.com >> Modify settings or unsubscribe at: >> https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users >> > > > ScottL > Oh, I forgot to mention that JACK now asks you if you want to enable -rt privileges. If you answer 'yes' and the user is in the 'audio' group then you should have better performance. If you didn't answer 'yes' you may still be able to uninstall JACK completely and resinstall and answer again. Hope this helps. -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Re: Kubuntu 10.10 and real-time kernel
On Sat, Feb 26, 2011 at 2:16 PM, Alexandros Bitoulas wrote: > Hello everybody! > > Hi Alexandros! > I run kubuntu 10.10 with 2.6.35-25-generic kernel and I am very pleased and > enthusiast about it's aesthetic feel. > > However, I want to record live my guitar. With this kernel, the latency > that I > get in Jack, (with 512 frames/period, 44100 Sample Rate and 2 > Periods/Buffer) > is 23.2 msec which is a little bit annoying. If I lower the Frames to 256 I > get 11.6 but I have many Xruns. > > it would be helpful to know what you audio interface is to perhaps help you get better performance. Also, in some cases (and yours might be one) if you add the user to the 'audio' group it helps performance as well. > So, I am thinking to install the realtime kernel. The question is: are > Kubuntu > 10.10 and real-time kernel full compatible with each other? Do I need to > make > any considerations/modifications in my system before installing the > real-time > kernel. Did anyone had any problems with Kubuntu 10.10 and real-time > kernel? > > Good question. But since it's all based on Ubuntu I wouldn't expect much deviation in performance except in specific, restricted cases. > I searched on the web and I only found some generic comments like "that KDE > isn't suitable for audio production", but with no serious support that > validate those comments. > > I think many people would argue with that position. A good friend created and maintains that KXStudio distro which is based on Ubuntu Studio and uses KDE. It's brilliant and beautiful and includes a -realtime kernel I believe. It's a live DVD so I would highly recommend researching it. You can find it here: http://kxstudio.sourceforge.net/ > I am looking forward to your replies and comments! > > Thank you in advance, > > Alex > > -- > Ubuntu-Studio-users mailing list > Ubuntu-Studio-users@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users > ScottL -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
Kubuntu 10.10 and real-time kernel
Hello everybody! I run kubuntu 10.10 with 2.6.35-25-generic kernel and I am very pleased and enthusiast about it's aesthetic feel. However, I want to record live my guitar. With this kernel, the latency that I get in Jack, (with 512 frames/period, 44100 Sample Rate and 2 Periods/Buffer) is 23.2 msec which is a little bit annoying. If I lower the Frames to 256 I get 11.6 but I have many Xruns. So, I am thinking to install the realtime kernel. The question is: are Kubuntu 10.10 and real-time kernel full compatible with each other? Do I need to make any considerations/modifications in my system before installing the real-time kernel. Did anyone had any problems with Kubuntu 10.10 and real-time kernel? I searched on the web and I only found some generic comments like "that KDE isn't suitable for audio production", but with no serious support that validate those comments. I am looking forward to your replies and comments! Thank you in advance, Alex -- Ubuntu-Studio-users mailing list Ubuntu-Studio-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-users
