Hello,
Im trying to use jackd on fc8 on a lenovo x61 laptop.
Sound is ridiculously choppy. Even if I fail to set realtime settings properly or something it shouldnt be this choppy. Normal sound through alsa works well.
It makes no difference if I run jackd as root or not. I run it through qjackctl, and set alsa port hw:0. I also tried no duplex.
I dont think I have any other sound daemons such as pulseaudio, esd or arts running.
Any hints how to debug this are apreciated.
On Thu, 2007-11-08 at 13:26 +0100, joakim@verona.se wrote:
Hello,
Im trying to use jackd on fc8 on a lenovo x61 laptop.
Sound is ridiculously choppy. Even if I fail to set realtime settings properly or something it shouldnt be this choppy. Normal sound through alsa works well.
It makes no difference if I run jackd as root or not. I run it through qjackctl, and set alsa port hw:0. I also tried no duplex.
I dont think I have any other sound daemons such as pulseaudio, esd or arts running.
Any hints how to debug this are apreciated.
If this is using snd-hda-intel hardware you should try setting "Periods/Buffer" to 3 or more, 2 just does not work on that (toy) hardware - which I also have in a T61.
-- Fernando
Fernando Lopez-Lezcano nando@ccrma.Stanford.EDU writes:
On Thu, 2007-11-08 at 13:26 +0100, joakim@verona.se wrote:
Hello,
Im trying to use jackd on fc8 on a lenovo x61 laptop.
Sound is ridiculously choppy. Even if I fail to set realtime settings properly or something it shouldnt be this choppy. Normal sound through alsa works well.
It makes no difference if I run jackd as root or not. I run it through qjackctl, and set alsa port hw:0. I also tried no duplex.
I dont think I have any other sound daemons such as pulseaudio, esd or arts running.
Any hints how to debug this are apreciated.
If this is using snd-hda-intel hardware you should try setting "Periods/Buffer" to 3 or more, 2 just does not work on that (toy) hardware - which I also have in a T61.
-- Fernando
Thanks for these hints! However, I'm still unsucessful.
Log attached.
jackd --realtime -v -R -P14 -dalsa -dhw:0 -r44100 -p2048 -n4 -P getting driver descriptor from /usr/lib/jack/jack_dummy.so getting driver descriptor from /usr/lib/jack/jack_alsa.so getting driver descriptor from /usr/lib/jack/jack_freebob.so jackd 0.103.0 Copyright 2001-2005 Paul Davis and others. jackd 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 compiled with System V SHM support. server `default' registered registered builtin port type 32 bit float mono audio registered builtin port type 8 bit raw midi clock source = system clock via clock_gettime loading driver .. apparent rate = 44100 creating alsa driver ... hw:0|-|2048|4|44100|0|0|nomon|swmeter|-|32bit control device hw:0 new client: alsa_pcm, id = 1 type 1 @ 0x84aee30 fd = -1 configuring for 44100Hz, period = 2048 frames, buffer = 4 periods ALSA: final selected sample format for playback: 32bit little-endian ALSA: use 4 periods for playback new buffer size 2048 registered port alsa_pcm:playback_1, offset = 0 registered port alsa_pcm:playback_2, offset = 0 ++ jack_rechain_graph(): client alsa_pcm: internal client, execution_order=0. -- jack_rechain_graph() cannot use real-time scheduling (FIFO at priority 24) [for thread -1233609840, from thread -1233609840] (1: Operation not permitted) 19984 waiting for signals late driver wakeup: nframes to process = 4096. late driver wakeup: nframes to process = 4096. late driver wakeup: nframes to process = 4096. late driver wakeup: nframes to process = 4096. late driver wakeup: nframes to process = 4096. load = 0.0581 max usecs: 54.000, spare = 46385.000 delay of 46427.000 usecs exceeds estimated spare time of 46385.000; restart ... late driver wakeup: nframes to process = 4096. delay of 46432.000 usecs exceeds estimated spare time of 46385.000; restart ... late driver wakeup: nframes to process = 4096. late driver wakeup: nframes to process = 4096. delay of 46474.000 usecs exceeds estimated spare time of 46385.000; restart ... delay of 46474.000 usecs exceeds estimated spare time of 46385.000; restart ... late driver wakeup: nframes to process = 4096. jack main caught signal 2 starting server engine shutdown stopping driver delay of 46404.000 usecs exceeds estimated spare time of 46385.000; restart ... unloading driver freeing shared port segments stopping server thread stopping watchdog thread last xrun delay: 46404.000 usecs max delay reported by backend: 46474.000 usecs freeing engine shared memory max usecs: 54.000, engine deleted no message buffer overruns cleaning up shared memory cleaning up files unregistering server `default'
-
Fernando Lopez-Lezcano -
joakim＠verona.se