13 Sep
2013
13 Sep
'13
12:12 p.m.
Hi Marco,
I recompiled a real time kernel for 13.04 following the system
configuration guide (in this case the italian translation that reports
"3.2.35-rt52").
http://linuxaudio.it/index.php/Configurazione_di_sistemi_audio_GNU/Linux#Co…
I'm using an hp pavilion 6 laptop with the ua-25 ex soundcard and with
this particular real time Kernel everything works fine.
1 xrun discovered at 5,8 ms latency in 3 hours session, recording and
mixing with Ardour.
Best regards
Nicola
Hi Nicola,
thanks for sharing your experience. The process in that tutorial is very
similar to the one I followed from the other tutorial in English. It's good
to know it works well, yet my problem is with the nvidia driver that needs
to be patched for -rt as well.
thank you!
best,
M
13 Sep
13 Sep
12:36 p.m.
New subject: options for hard real time kernel for raring 13.04
On Fri, 2013-09-13 at 12:12 +0200, Marco Donnarumma wrote:
yet my problem is with the nvidia driver that needs to
be patched for
-rt as well
Doing this it anyway could be, that it doesn't work, and the nouveau
driver is very good nowadays, so I would use nouveau instead of the
proprietary driver.
I didn't follow the whole thread. Do you need rt? Threadirqs isn't good
enough? A preempted kernel with threadirqs set at boot usually is nearly
as good, as a kernel-rt and doesn't cause graphic driver issues.
I used the kernel-rt with nouveau. 3D acceleration was very good, better
then it is for me now, with the FLOSS ATI driver.
8:50 p.m.
New subject: options for hard real time kernel for raring 13.04
On 13/09/13 11:12, Marco Donnarumma wrote:
Hi Marco,
I recompiled a real time kernel for 13.04 following the system
configuration guide (in this case the italian translation that reports
"3.2.35-rt52").
http://linuxaudio.it/index.php/Configurazione_di_sistemi_audio_GNU/Linux#Co…
I'm using an hp pavilion 6 laptop with the ua-25 ex soundcard and with
this particular real time Kernel everything works fine.
1 xrun discovered at 5,8 ms latency in 3 hours session, recording and
mixing with Ardour.
Best regards
Nicola
Hi Nicola,
thanks for sharing your experience. The process in that tutorial is
very similar to the one I followed from the other tutorial in English.
It's good to know it works well, yet my problem is with the nvidia
driver that needs to be patched for -rt as well.
thank you!
best,
M
Hi Marco,
Fortunately, i've never used proprietary drivers since i use Linux audio
'cause i always had intel video cards.
Anyway, I'm interested in your issue and i will follow this thread, hope
you will solve this soon!
Regards
Nicola
17 Sep
17 Sep
10:42 a.m.
New subject: options for hard real time kernel for raring 13.04
update #2
@Jeremy, I found out my machine suffers of the same freezing windows bug as
yours when using the free driver. So I'm forced to get the nvidia driver
working properly. No luck with it yet.
@Jordan, thanks for your clarification. I had read your post [1] on the
nvidia forum before writing to this list. I've tried both methods for
Debian/Ubuntu that ulflj <https://devtalk.nvidia.com/member/1924456/> wrote
in that thread, but none worked out. I guess it's because I'm using an
older kernel 3.8 low latency and 3.2.6 rt.
[1] http://bit.ly/16aUlqD
SO...
after a wrong trial that left me only with tty, I went with:
\\\\\\ remove old nvidia stuff (it was corrupted in my case anyway)
dpkg --get-selections | grep nvidia
sudo apt-get purge {pkgs}
\\\\\\ get the installer and patch it with rt patch
boot in my low-latency 3.8 kernel tty level 3
downloaded the installer for 310.44 (the more recent driver that runs out
of the box with my low latency kernel)
./NVIDIA-Linux-x86-310.44 --extract-only
cd NVIDIA-Linux-x86-310.44/kernel/
patched it with Jeremy's patch: patch -Np1 -i nvidia-XXX-rt.patch
sudo nvidia-installer
This time apparently it worked for my low-latency kernel, but not for the
rt kernel (a 3.2.6 custom one I compiled). What's curious is that when
logging in the rt-kernel:
- cinnamon crashes and goes in fall back mode without a way of recovering it
- the nvidia module seems not to be loaded. I guess it's not because I
don't see the flash screen NVidia at booting
- so I launch the nvidia settings, and I'm welcomed with a message saying
I'm not using the driver
- so I launch the hardware driver utility, and I'm welcomed with another
message saying the driver is installed
What did I do wrong?
Shall I have run the installer when running the rt-kernel? and if so, why
is that, are modules kernel-dependent?
I'm just wildly guessing the rt-kernel fails in loading the module....
any hint, again, is much appreciated.
thank you!
best wishes,
M
--
Marco Donnarumma
New Media + Sonic Arts Practitioner, Performer, Teacher, Director.
Embodied Audio-Visual Interaction Research Team.
Department of Computing, Goldsmiths University of London
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Portfolio: http://marcodonnarumma.com
Research: http://res.marcodonnarumma.com
Director: http://www.liveperformersmeeting.net
On Fri, Sep 13, 2013 at 7:55 PM, Nicola Di Marzo <
nicola.di.marzo(a)vodafone.it> wrote:
On 13/09/13 11:12, Marco Donnarumma wrote:
Hi Marco,
I recompiled a real time kernel for 13.04 following the system
configuration guide (in this case the italian translation that reports
"3.2.35-rt52").
http://linuxaudio.it/index.php/Configurazione_di_sistemi_audio_GNU/Linux#Co…
I'm using an hp pavilion 6 laptop with the ua-25 ex soundcard and with
this particular real time Kernel everything works fine.
1 xrun discovered at 5,8 ms latency in 3 hours session, recording and
mixing with Ardour.
Best regards
Nicola
Hi Nicola,
thanks for sharing your experience. The process in that tutorial is very
similar to the one I followed from the other tutorial in English. It's good
to know it works well, yet my problem is with the nvidia driver that needs
to be patched for -rt as well.
thank you!
best,
M
Hi Marco,
Fortunately, i've never used proprietary drivers since i use Linux audio
'cause i always had intel video cards.
Anyway, I'm interested in your issue and i will follow this thread, hope
you will solve this soon!
Regards
Nicola
12:03 p.m.
New subject: options for hard real time kernel for raring 13.04
On Tue, 2013-09-17 at 09:42 +0100, Marco Donnarumma wrote:
This time apparently it worked for my low-latency
kernel, but not for
the rt kernel (a 3.2.6 custom one I compiled). What's curious is that
when logging in the rt-kernel:
- cinnamon crashes and goes in fall back mode without a way of
recovering it
What does ~/.xsession-errors say?
- the nvidia module seems not to be loaded. I guess
it's not because I
don't see the flash screen NVidia at booting
Don't guess, take a look at /var/log/Xorg.0.log. When doing this, first
grep EE, IOW run
grep EE /var/log/Xorg.0.log
- so I launch the nvidia settings, and I'm
welcomed with a message
saying I'm not using the driver
Seems to be the answer ;).
- so I launch the hardware driver utility, and I'm
welcomed with
another message saying the driver is installed
Perhaps not the module for the kernel you use.
Shall I have run the installer when running the
rt-kernel? and if so,
why is that, are modules kernel-dependent?
Modules have to fit to the kernel. You should run the NVIDIA *run thingy
manually.
I've got no time to search for you an English howto, sorry, on the quick
I only found a German howto:
http://wiki.ubuntuusers.de/Grafikkarten/Nvidia/Manuelle_Treiberinstallation
You perhaps need to stop by another way, than using /etc/init.d/...,
this depends to the distro you're using.
12:26 p.m.
New subject: options for hard real time kernel for raring 13.04
Sorry, again a PS:
On Tue, 2013-09-17 at 09:42 +0100, Marco Donnarumma wrote:
Shall I have run the installer when running the
rt-kernel?
Only if you run
sudo sh NVIDIA-Linux-x86-100.14.09-pkg1.run -a -K --kernel-name=$(uname -r)
you also could add the wanted kernel behind the "--kernel-name=" instead
of "$(uname -r)", when doing it running another kernel. IIRC you don't
need to sop X, when you only want to build the kernel module.
12:27 p.m.
New subject: options for hard real time kernel for raring 13.04
"Aller guten Dinge sind 3 :("
On Tue, 2013-09-17 at 12:26 +0200, Ralf Mardorf wrote:
Sorry, again a PS:
On Tue, 2013-09-17 at 09:42 +0100, Marco Donnarumma wrote:
^^^^^^^^^^^^^^^^^^ add your NVIDIA driver version
here.
Shall I have run the installer when running the
rt-kernel?
Only if you run
sudo sh NVIDIA-Linux-x86-100.14.09-pkg1.run -a -K --kernel-name=$(uname -r) you also could add the wanted kernel behind the
"--kernel-name=" instead
of "$(uname -r)", when doing it running another kernel. IIRC you don't
need to sop X, when you only want to build the kernel module.
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participants (3)
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Marco Donnarumma -
Nicola Di Marzo -
Ralf Mardorf