14.12.2010 21:06, Alessio Igor Bogani kirjoitti: > Hi, > The -lowlatency 2.6.37-8.21~ppa1 kernel have RT_GROUP_SCHED enabled. > Instead the 2.6.37-9.22~ppa1 one's have RT_GROUP_SCHED disabled. > > Anyone could test those?
This kernel is very good for me. I can use NVIDIA (dual screen), M-Audio Delta 66 and Echo AudioFire 4 with no xruns when palying a session with Ardour. Here is screenshots for both devices with Ardour. Merry Christmas Alessio! Best Regards Asmo Koskinen. 1. stu...@ubuntu-studio:~$ uname -a Linux ubuntu-studio 2.6.37-9-lowlatency #22~ppa1-Ubuntu SMP PREEMPT Tue Dec 14 14:50:39 UTC 2010 x86_64 GNU/Linux 2. stu...@ubuntu-studio:~$ lspci -k | grep nvidia Kernel driver in use: nvidia Kernel modules: nvidia-current, nouveau, nvidiafb 3. stu...@ubuntu-studio:~$ lspci -k | grep ice1712 Kernel modules: snd-ice1712 4. stu...@ubuntu-studio:~$ ffado-test ListDevices ----------------------------------------------- FFADO test and diagnostic utility Part of the FFADO project -- www.ffado.org Version: 2.999.0- (C) 2008, Daniel Wagner, Pieter Palmers This program comes with ABSOLUTELY NO WARRANTY. ----------------------------------------------- === 1394 PORT 0 === Node id GUID VendorId ModelId Vendor - Model 0 0x0400000000000000 0x00040000 0x00000AF4 Echo Digital Audio - AudioFire4 01230689980: Error (configrom.cpp)[ 150] initialize: Could not parse config rom of node 1 on port 0 no message buffer overruns 5. 14:13:37.424 /usr/bin/jackd -m -dalsa -dhw:0 -r44100 -p128 -n3 -Xseq 14:13:37.426 JACK was started with PID=2757. no message buffer overruns no message buffer overruns jackdmp 1.9.7 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2010 Grame. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK server starting in realtime mode with priority 10 control device hw:0 control device hw:0 audio_reservation_init Acquire audio card Audio0 creating alsa driver ... hw:0|hw:0|128|3|44100|0|0|nomon|swmeter|-|32bit control device hw:0 Using ALSA driver ICE1712 running on card 0 - M Audio Delta 66 at 0x10c0, irq 22 configuring for 44100Hz, period = 128 frames (2.9 ms), buffer = 3 periods ALSA: final selected sample format for capture: 32bit integer little-endian ALSA: use 3 periods for capture ALSA: final selected sample format for playback: 32bit integer little-endian ALSA: use 3 periods for playback port created: Midi-Through:midi/playback_1 port created: Midi-Through:midi/capture_1 14:13:37.573 ALSA connection graph change. 14:13:39.625 JACK connection change. 14:13:39.626 Server configuration saved to "/home/studio/.jackdrc". 14:13:39.627 Statistics reset. 14:13:39.633 Client activated. 14:13:39.635 JACK connection graph change. http://www.arkki.info/howto/Ubuntu_Studio_Testing/Natty/Natty_01.png 6. 14:10:32.977 /usr/bin/jackd -m -dfirewire -r44100 -p128 -n3 14:10:32.981 JACK was started with PID=2655. no message buffer overruns no message buffer overruns jackdmp 1.9.7 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2010 Grame. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK server starting in realtime mode with priority 10 libffado 2.999.0- built Nov 1 2010 21:44:06 14:10:38.115 JACK connection change. 14:10:38.116 Server configuration saved to "/home/studio/.jackdrc". 14:10:38.117 Statistics reset. 14:10:38.122 Client activated. 14:10:38.129 JACK connection graph change. http://www.arkki.info/howto/Ubuntu_Studio_Testing/Natty/Natty_02.png -- Ubuntu-Studio-devel mailing list Ubuntu-Studio-devel@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel