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)