Hi all!
I am (french) musician discovering Rosegarden, that look very good! ;)
Great soft.
I'm also a contributor of the linuxmao.org team (Xzu Rukneg), I'm a free
musician.
I use multiple distro, I have no problems with TangoStudio(.tuxfamily.org).
But I need to use a recent distro (for ffado), I've optimised a debian
wheezy with Xfce-4 for that, with a *rt-kernel*:
uname -a:
Linux ruknegstudio 3.2.0-3-rt-amd64 #1 SMP PREEMPT RT Mon Jul 23
03:37:45 UTC 2012 x86_64 GNU/Linux
And I use *rosegarden 1:12.04-1* (last debian wheezy version).
*Config test* (from linuxmusician):
delpixzu@ruknegstudio:~$ cd realtimeconfigquickscan ; perl
./realTimeConfigQuickScan.pl
== GUI-enabled checks ==
Checking if you are root... no - good
Checking filesystem 'noatime' parameter... - good
cat: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor: Aucun
fichier ou dossier de ce type
cat: /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor: Aucun
fichier ou dossier de ce type
cat: /sys/devices/system/cpu/cpu2/cpufreq/scaling_governor: Aucun
fichier ou dossier de ce type
cat: /sys/devices/system/cpu/cpu3/cpufreq/scaling_governor: Aucun
fichier ou dossier de ce type
Checking CPU Governors... CPU 0: '' CPU 1: '' CPU 2: '' CPU 3: '' - not
good #But ok because option set OFF in BIOS (resolve Xrun)
Set CPU Governors to 'performance' with 'cpufreq-set -c <cpunr> -g
performance'
See also: http://linuxmusicians.com/viewtopic.php?f=27&t=844
Checking swappiness... 5 - good
Checking for resource-intensive background processes... none found - good
Checking checking sysctl inotify max_user_watches... >= 524288 - good
Checking access to the high precision event timer... readable - good
Checking access to the real-time clock... readable - good
Checking whether you're in the 'audio' group... yes - good
Checking for multiple 'audio' groups... no - good
yes - good.
Checking the ability to prioritize processes with chrt... yes - good
Checking kernel support for high resolution timers... found - good
Kernel with Real-Time Preemption... found - good
Checking if kernel system timer is set to 1000 hz... found - good
Checking kernel support for tickless timer... found - good
== Other checks ==
Checking filesystem types... ok.
not found.
** Warning: no tmpfs partition mounted on /tmp
For more information, see:
- http://wiki.linuxmusicians.com/doku.php?id=system_configuration#tmpfs
- http://lowlatency.linuxaudio.org
** Set $SOUND_CARD_IRQ to the IRQ of your soundcard to enable more checks.
Find your sound card's IRQ by looking at '/proc/interrupts' and lspci.
I also load the *hrtimer*:
root@ruknegstudio:~# lsmod | grep timer
snd_hrtimer 12604 0
snd_timer 22886 3 snd_seq,snd_pcm,snd_hrtimer
snd 52818 13
snd_timer,snd_seq_device,snd_seq,snd_pcm,snd_rawmidi,snd_mpu401_uart,snd_ac97_codec,snd_ak4xxx_adda,snd_i2c,snd_cs8427,snd_ice1712
*
*And*Jack* is running in RT mode.
I've read
this:http://www.rosegardenmusic.com/wiki/Frequently_Asked_Questions#what_does_system_timer_resolution_is_too_low_mean
So all seem to be ok.
But I still have the error warning message: 'midi timer resolution to
low'.(in French for my version)
I've search for*snd-rtctimer* kernel module but I've don't find it, on
any different kernel from different distro.
Maybe 'snd-hrtimer' is the new name of 'snd-rtctimer'?
Anyway, I don't understand, for example with TangoStudio distro,
(rosegarden version 1:11.06-1tstudio1) I don't have this problem,
here the 'ls mod':
tangxzu@TangoStudio-desktop:~$ lsmod | grep timer
snd_hrtimer 2033 0
snd_timer 23543 3 snd_pcm,snd_hrtimer,snd_seq
snd 72000 21
snd_usb_audio,snd_hwdep,snd_ice1712,snd_ak4xxx_adda,snd_cs8427,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_i2c,snd_mpu401_uart,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
Thanks I you have any idea or advice!
See you.
Damien.Delpiroux. (aka Xzu Rukneg)
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