3 Mar
2013
3 Mar
'13
11:47 a.m.
Hello!
I'm experiencing some weird issues with JACK. I got a new system the other
day, and I'm tweaking it for linux audio only basically. My issues are:
even when dsp load isn't even close to 100%, I get xruns. This only happens
at lower latencies, but still. My setup is as follows :
Kxstudio 12.04.2
3.2 realtime kernel (tried lowlatency and generic aswell)
Usb sound card Lexicon Omega
Realtimeconfig quickscan shows everything green except cpu governors, but
I'm pretty sure I don't have that on this system? It's an Intel i5 3570k
desktop. Or maybe there's some setting in BIOS equivalent of cpu governors?
If so that might very well be the problem.
I use JACK at 48khz 3 periods/buffer. I start it via falktx's Cadence.
Any ideas about this?
Also! When I'm asking for help anyway... I connect my MIDI keyboard via
MIDI in on my sound card, but that suddenly stopped working. The midi out
from the sound card is present in JACK, but it delivers no midi. Any idea
on where to start troubleshooting this?
Thank you so much for taking the time to read this. Cheers!
3 Mar
3 Mar
1:04 p.m.
On 03/03/2013 11:47 AM, Gabbe Nord wrote:
Hello!
I'm experiencing some weird issues with JACK. I got a new system the other
day, and I'm tweaking it for linux audio only basically. My issues are:
even when dsp load isn't even close to 100%, I get xruns. This only happens
at lower latencies, but still. My setup is as follows :
Kxstudio 12.04.2
3.2 realtime kernel (tried lowlatency and generic aswell)
Usb sound card Lexicon Omega
Realtimeconfig quickscan shows everything green except cpu governors, but
I'm pretty sure I don't have that on this system? It's an Intel i5 3570k
desktop. Or maybe there's some setting in BIOS equivalent of cpu governors?
If so that might very well be the problem.
Hello Gabbe,
You can check what governor is in use with:
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
And set it to a non-scaling governor with:
echo -n performance | sudo tee
/sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
You can also disable it in your BIOS, it's probably called something
like SpeedStep. More info:
http://wiki.linuxmusicians.com/doku.php?id=system_configuration#cpu_frequen…
I use JACK at 48khz 3 periods/buffer. I start it via
falktx's Cadence.
Any ideas about this?
Please post the output of:
cat /proc/interrupts
Also! When I'm asking for help anyway... I connect
my MIDI keyboard via
MIDI in on my sound card, but that suddenly stopped working. The midi out
from the sound card is present in JACK, but it delivers no midi. Any idea
on where to start troubleshooting this?
Did you try other USB ports? Or issueing a:
sudo alsa force-reload
Does that help?
Regards,
Jeremy
Thank you so much for taking the time to read this.
Cheers!
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
3:29 p.m.
Hello Jeremy, and thank you so much for your reply!
I disabled SpeedStep in BIOS, and it helped a little, thanks! Here's my
interrupts:
zth@zth:~$ cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 43 0 1 1 IO-APIC-edge timer
1: 3 0 0 0 IO-APIC-edge i8042
8: 1 0 0 0 IO-APIC-edge rtc0
9: 0 0 0 0 IO-APIC-fasteoi acpi
12: 4 0 0 0 IO-APIC-edge i8042
23: 412535 22606 20 25 IO-APIC-fasteoi
ehci_hcd:usb1, ehci_hcd:usb2
41: 12871 435 437 292 PCI-MSI-edge ahci
42: 0 0 0 0 PCI-MSI-edge
xhci_hcd
43: 67 9 3 8 PCI-MSI-edge eth0
44: 9 3 1 0 PCI-MSI-edge mei
45: 78 161 80 19 PCI-MSI-edge
snd_hda_intel
46: 87524 15 46 18 PCI-MSI-edge radeon
47: 29 0 0 0 PCI-MSI-edge
snd_hda_intel
NMI: 171 188 137 145 Non-maskable interrupts
LOC: 393823 587985 553269 586297 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 171 188 137 145 Performance monitoring
interrupts
IWI: 0 0 0 0 IRQ work interrupts
RES: 33948 43230 37004 44438 Rescheduling interrupts
CAL: 4737 2603 2357 2402 Function call interrupts
TLB: 8090 6659 7185 7658 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 Machine check exceptions
MCP: 116 116 116 118 Machine check polls
ERR: 0
MIS: 0
I tried alsa-reload but it didn't help =(.
Thanks again for your reply!
On Sun, Mar 3, 2013 at 1:04 PM, Jeremy Jongepier <jeremy(a)autostatic.com>wrote;wrote:
On 03/03/2013 11:47 AM, Gabbe Nord wrote:
Hello!
I'm experiencing some weird issues with JACK. I got a new system the other
day, and I'm tweaking it for linux audio only basically. My issues are:
even when dsp load isn't even close to 100%, I get xruns. This only
happens
at lower latencies, but still. My setup is as follows :
Kxstudio 12.04.2
3.2 realtime kernel (tried lowlatency and generic aswell)
Usb sound card Lexicon Omega
Realtimeconfig quickscan shows everything green except cpu governors, but
I'm pretty sure I don't have that on this system? It's an Intel i5 3570k
desktop. Or maybe there's some setting in BIOS equivalent of cpu
governors?
If so that might very well be the problem.
Hello Gabbe,
You can check what governor is in use with:
cat /sys/devices/system/cpu/cpu*/**cpufreq/scaling_governor
And set it to a non-scaling governor with:
echo -n performance | sudo tee /sys/devices/system/cpu/cpu*/**
cpufreq/scaling_governor
You can also disable it in your BIOS, it's probably called something like
SpeedStep. More info: http://wiki.linuxmusicians.**com/doku.php?id=system_
**configuration#cpu_frequency_**scaling<http://wiki.linuxmusicians.com/doku.php?id=system_configuration#cpu_frequency_scaling>
I use JACK at 48khz 3 periods/buffer. I start it via falktx's Cadence.
Any ideas about this?
Please post the output of:
cat /proc/interrupts
Also! When I'm asking for help anyway... I connect my MIDI keyboard via
MIDI in on my sound card, but that suddenly
stopped working. The midi out
from the sound card is present in JACK, but it delivers no midi. Any idea
on where to start troubleshooting this?
Did you try other USB ports? Or issueing a:
sudo alsa force-reload
Does that help?
Regards,
Jeremy
Thank you so much for taking the time to read this. Cheers!
______________________________**_________________
Linux-audio-user mailing list
Linux-audio-user@lists.**linuxaudio.org<Linux-audio-user@lists.linuxaudio.org>
http://lists.linuxaudio.org/**listinfo/linux-audio-user<http://lists.lin…
______________________________**_________________
Linux-audio-user mailing list
Linux-audio-user@lists.**linuxaudio.org<Linux-audio-user@lists.linuxaudio.org>
http://lists.linuxaudio.org/**listinfo/linux-audio-user<http://lists.lin…
3:41 p.m.
On 03/03/2013 03:29 PM, Gabbe Nord wrote:
Hello Jeremy, and thank you so much for your reply!
I disabled SpeedStep in BIOS, and it helped a little, thanks!
So the xruns are not completely gone? And what if you force the Lexicon
to only use 2 ins and outs with -i2 -o2? Could you also post your jackd
command (run JACK and check with ps -eo cmd | grep [j]ackd)
Here's my
interrupts:
zth@zth:~$ cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 43 0 1 1 IO-APIC-edge timer
1: 3 0 0 0 IO-APIC-edge i8042
8: 1 0 0 0 IO-APIC-edge rtc0
9: 0 0 0 0 IO-APIC-fasteoi acpi
12: 4 0 0 0 IO-APIC-edge i8042
23: 412535 22606 20 25 IO-APIC-fasteoi
ehci_hcd:usb1, ehci_hcd:usb2
41: 12871 435 437 292 PCI-MSI-edge ahci
42: 0 0 0 0 PCI-MSI-edge
xhci_hcd
43: 67 9 3 8 PCI-MSI-edge eth0
44: 9 3 1 0 PCI-MSI-edge mei
45: 78 161 80 19 PCI-MSI-edge
snd_hda_intel
46: 87524 15 46 18 PCI-MSI-edge radeon
47: 29 0 0 0 PCI-MSI-edge
snd_hda_intel
NMI: 171 188 137 145 Non-maskable interrupts
LOC: 393823 587985 553269 586297 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 171 188 137 145 Performance monitoring
interrupts
IWI: 0 0 0 0 IRQ work interrupts
RES: 33948 43230 37004 44438 Rescheduling interrupts
CAL: 4737 2603 2357 2402 Function call interrupts
TLB: 8090 6659 7185 7658 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 Machine check exceptions
MCP: 116 116 116 118 Machine check polls
ERR: 0
MIS: 0
I tried alsa-reload but it didn't help =(.
Try
sudo modprobe -r snd-usb-audio && sudo modprobe snd-usb-audio
Does that revive MIDI again?
Jeremy
Thanks again for your reply!
On Sun, Mar 3, 2013 at 1:04 PM, Jeremy Jongepier <jeremy(a)autostatic.com>wrote;wrote:
On 03/03/2013 11:47 AM, Gabbe Nord wrote:
Hello!
I'm experiencing some weird issues with JACK. I got a new system the other
day, and I'm tweaking it for linux audio only basically. My issues are:
even when dsp load isn't even close to 100%, I get xruns. This only
happens
at lower latencies, but still. My setup is as follows :
Kxstudio 12.04.2
3.2 realtime kernel (tried lowlatency and generic aswell)
Usb sound card Lexicon Omega
Realtimeconfig quickscan shows everything green except cpu governors, but
I'm pretty sure I don't have that on this system? It's an Intel i5 3570k
desktop. Or maybe there's some setting in BIOS equivalent of cpu
governors?
If so that might very well be the problem.
Hello Gabbe,
You can check what governor is in use with:
cat /sys/devices/system/cpu/cpu*/**cpufreq/scaling_governor
And set it to a non-scaling governor with:
echo -n performance | sudo tee /sys/devices/system/cpu/cpu*/**
cpufreq/scaling_governor
You can also disable it in your BIOS, it's probably called something like
SpeedStep. More info: http://wiki.linuxmusicians.**com/doku.php?id=system_
**configuration#cpu_frequency_**scaling<http://wiki.linuxmusicians.com/doku.php?id=system_configuration#cpu_frequency_scaling>
I use JACK at 48khz 3 periods/buffer. I start it via falktx's Cadence.
Any ideas about this?
Please post the output of:
cat /proc/interrupts
Also! When I'm asking for help anyway... I connect my MIDI keyboard via
MIDI in on my sound card, but that suddenly
stopped working. The midi out
from the sound card is present in JACK, but it delivers no midi. Any idea
on where to start troubleshooting this?
Did you try other USB ports? Or issueing a:
sudo alsa force-reload
Does that help?
Regards,
Jeremy
Thank you so much for taking the time to read this. Cheers!
______________________________**_________________
Linux-audio-user mailing list
Linux-audio-user@lists.**linuxaudio.org<Linux-audio-user@lists.linuxaudio.org>
http://lists.linuxaudio.org/**listinfo/linux-audio-user<http://lists.lin…
______________________________**_________________
Linux-audio-user mailing list
Linux-audio-user@lists.**linuxaudio.org<Linux-audio-user@lists.linuxaudio.org>
http://lists.linuxaudio.org/**listinfo/linux-audio-user<http://lists.lin…
5:01 p.m.
On Sun, March 3, 2013 6:29 am, Gabbe Nord wrote:
Hello Jeremy, and thank you so much for your reply!
I disabled SpeedStep in BIOS, and it helped a little, thanks!
Also hyperthreading? if you have only one cpu you may have to disable cpu1
in the boot command line if the bios doesn't allow this.
Here's my
interrupts:
zth@zth:~$ cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 43 0 1 1 IO-APIC-edge timer
1: 3 0 0 0 IO-APIC-edge i8042
8: 1 0 0 0 IO-APIC-edge rtc0
9: 0 0 0 0 IO-APIC-fasteoi acpi
12: 4 0 0 0 IO-APIC-edge i8042
23: 412535 22606 20 25 IO-APIC-fasteoi
ehci_hcd:usb1, ehci_hcd:usb2
This is not great, both USB are on the same irq. do you use a USB mouse or
KB? That could cause problems. If you have the plugs for mouse and KB use
them even if you need adapters. Some bios let you tell the bios not to set
irqs for the USB or video. That might help as Linux seems to be a bit more
inteligent at doing it. In the end usb1 and usb2 may be hardwired to the
same irq. That probably means you can only use one of them.
Laptop or desktop? in either case a USB card may help.
41: 12871 435 437 292
PCI-MSI-edge ahci
42: 0 0 0 0 PCI-MSI-edge
xhci_hcd
43: 67 9 3 8 PCI-MSI-edge eth0
44: 9 3 1 0 PCI-MSI-edge mei
45: 78 161 80 19 PCI-MSI-edge
snd_hda_intel
46: 87524 15 46 18 PCI-MSI-edge
radeon
47: 29 0 0 0 PCI-MSI-edge
snd_hda_intel
--
Len Ovens
www.OvenWerks.net
4 Mar
4 Mar
12:26 p.m.
Hello!
I don't have hyperthreading, atleast there's nothing about that in bios.
It's a dekstop computer though.
Hmm, alarming! I do use both USB keyboard and USB mouse. My soundcard is
also USB. I do have alot of other devices plugged in aswell to my USB. Is
there any way I can fix this, other then getting "real" plugs for the USB
keyboard/mouse? Like I said, there's still a couple of devices that uses
USB even if I get rid of the mouse/keyboard.
@ Jeremy "So the xruns are not completely gone? And what if you force the
Lexicon to only use 2 ins and outs with -i2 -o2? Could you also post your
jackd command (run JACK and check with ps -eo cmd | grep [j]ackd)":
No, not completely gone. Running a project now that has ~70% cpu load
(never goes above that), and that gives atleast 4-5 pops each second. It's
not inaudible, but it's very prominent. That command told me something like
"/some/path/jackdbus auto" which I figure isn't of much help? I start jack
through Cadence, so I don't know how to extract the command from that
really =(.
I will try forcing the use of 2 ins and 2 outs!
Also, the MIDI issue turns out to atleast 1st be a problem with either the
keyboard or the actual soundcard. I suspect the keyboard, it has been
messing with me before. Gotta crack it open and take a look.... =/
Anyway, thanks for all help! I really need this working, if the pops can go
away for this I'll have a golden production environment =).
Cheers,
Gabriel
On Sun, Mar 3, 2013 at 5:01 PM, Len Ovens <len(a)ovenwerks.net> wrote:
On Sun, March 3, 2013 6:29 am, Gabbe Nord wrote:
Hello Jeremy, and thank you so much for your
reply!
I disabled SpeedStep in BIOS, and it helped a little, thanks!
Also hyperthreading? if you have only one cpu you may have to disable cpu1
in the boot command line if the bios doesn't allow this.
Here's my
interrupts:
zth@zth:~$ cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 43 0 1 1 IO-APIC-edge
timer
1: 3 0 0 0
IO-APIC-edge
i8042
8: 1 0 0 0
IO-APIC-edge rtc0
9: 0 0 0 0 IO-APIC-fasteoi acpi
12: 4 0 0 0 IO-APIC-edge
i8042
23: 412535 22606 20 25
IO-APIC-fasteoi
ehci_hcd:usb1, ehci_hcd:usb2
This is not great, both USB are on the same irq. do you use a USB mouse or
KB? That could cause problems. If you have the plugs for mouse and KB use
them even if you need adapters. Some bios let you tell the bios not to set
irqs for the USB or video. That might help as Linux seems to be a bit more
inteligent at doing it. In the end usb1 and usb2 may be hardwired to the
same irq. That probably means you can only use one of them.
Laptop or desktop? in either case a USB card may help.
41: 12871 435 437 292
PCI-MSI-edge ahci
42: 0 0 0 0 PCI-MSI-edge
xhci_hcd
43: 67 9 3 8 PCI-MSI-edge eth0
44: 9 3 1 0 PCI-MSI-edge mei
45: 78 161 80 19 PCI-MSI-edge
snd_hda_intel
46: 87524 15 46 18 PCI-MSI-edge
radeon
47: 29 0 0 0 PCI-MSI-edge
snd_hda_intel
--
Len Ovens
www.OvenWerks.net
2:39 p.m.
Quoting Gabbe Nord <gabbe.nord(a)gmail.com>om>:
Anyway, thanks for all help! I really need this
working, if the pops can go
away for this I'll have a golden production environment =).
Note that unless you're using softsynths, guitarix or similar "live"
things it really isn't necessary having über-low, realtime latencies,
so in that case you could raise the Frames/Period to 1024 or 2048 and
hopefully the xruns will disappear.
- Peder
2:44 p.m.
On 03/04/2013 12:26 PM, Gabbe Nord wrote:
Hello!
I don't have hyperthreading, atleast there's nothing about that in bios.
It's a dekstop computer though.
Hmm, alarming! I do use both USB keyboard and USB mouse. My soundcard is
also USB. I do have alot of other devices plugged in aswell to my USB. Is
there any way I can fix this, other then getting "real" plugs for the USB
keyboard/mouse? Like I said, there's still a couple of devices that uses
USB even if I get rid of the mouse/keyboard.
Like Len already suggested, try it with a PCIe USB card. Another option
is to have your interface on one USB port and the rest on the other and
then prioritize the port with the interface, this can be done with rtirq
by adding 'ehci_hcd:usb1' to the RTIRQ_NAME_LIST in /etc/default/rtirq
@ Jeremy "So the xruns are not completely gone?
And what if you force the
Lexicon to only use 2 ins and outs with -i2 -o2? Could you also post your
jackd command (run JACK and check with ps -eo cmd | grep [j]ackd)":
No, not completely gone. Running a project now that has ~70% cpu load
(never goes above that), and that gives atleast 4-5 pops each second. It's
not inaudible, but it's very prominent. That command told me something like
"/some/path/jackdbus auto" which I figure isn't of much help? I start jack
through Cadence, so I don't know how to extract the command from that
really =(.
Hmmm, bummer. And I don't use Cadence myself. Does it create a .jackdrc
file? If so could you post the output of
cat $HOME/.jackdrc
Jeremy
I will try forcing the use of 2 ins and 2 outs!
Also, the MIDI issue turns out to atleast 1st be a problem with either the
keyboard or the actual soundcard. I suspect the keyboard, it has been
messing with me before. Gotta crack it open and take a look.... =/
Anyway, thanks for all help! I really need this working, if the pops can go
away for this I'll have a golden production environment =).
Cheers,
Gabriel
On Sun, Mar 3, 2013 at 5:01 PM, Len Ovens <len(a)ovenwerks.net> wrote:
On Sun, March 3, 2013 6:29 am, Gabbe Nord wrote:
Hello Jeremy, and thank you so much for your
reply!
I disabled SpeedStep in BIOS, and it helped a little, thanks!
Also hyperthreading? if you have only one cpu you may have to disable cpu1
in the boot command line if the bios doesn't allow this.
Here's my
interrupts:
zth@zth:~$ cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 43 0 1 1 IO-APIC-edge
timer
1: 3 0 0 0
IO-APIC-edge
i8042
8: 1 0 0 0
IO-APIC-edge rtc0
9: 0 0 0 0 IO-APIC-fasteoi acpi
12: 4 0 0 0 IO-APIC-edge
i8042
23: 412535 22606 20 25
IO-APIC-fasteoi
ehci_hcd:usb1, ehci_hcd:usb2
This is not great, both USB are on the same irq. do you use a USB mouse or
KB? That could cause problems. If you have the plugs for mouse and KB use
them even if you need adapters. Some bios let you tell the bios not to set
irqs for the USB or video. That might help as Linux seems to be a bit more
inteligent at doing it. In the end usb1 and usb2 may be hardwired to the
same irq. That probably means you can only use one of them.
Laptop or desktop? in either case a USB card may help.
41: 12871 435 437 292
PCI-MSI-edge ahci
42: 0 0 0 0 PCI-MSI-edge
xhci_hcd
43: 67 9 3 8 PCI-MSI-edge eth0
44: 9 3 1 0 PCI-MSI-edge mei
45: 78 161 80 19 PCI-MSI-edge
snd_hda_intel
46: 87524 15 46 18 PCI-MSI-edge
radeon
47: 29 0 0 0 PCI-MSI-edge
snd_hda_intel
--
Len Ovens
www.OvenWerks.net
5 Mar
5 Mar
5:45 p.m.
On Mon, Mar 4, 2013 at 3:26 AM, Gabbe Nord <gabbe.nord(a)gmail.com> wrote:
Hmm, alarming! I do use both USB keyboard and USB
mouse. My soundcard is
also USB. I do have alot of other devices plugged in aswell to my USB. Is
there any way I can fix this, other then getting "real" plugs for the USB
keyboard/mouse? Like I said, there's still a couple of devices that uses USB
even if I get rid of the mouse/keyboard.
USB devices are allowed to reserve bandwidth... and that affects every
device attached to the same USB hub. Now, you might say, "I don't use
a USB hub" -- but that's not true. Your PC has one or two USB hubs
that it uses internally. In my case, I had a USB audio device on the
same hub as a USB Webcam. Even when I wasn't using the Webcam, it was
reserving bandwidth. Thing would be running fine, then all the sudden
audio comes crashing down with an xrun.
For me the PC had two internal hubs. I used a different USB port
(attached to the non-webcam-hub) and the problem was solved.
I'm not saying this is your problem... but use something like 'sudo
lsusb -t' and inspect which devices are connected to which hubs.
Unplug as much as you can. Try different ports.
-gabriel
4216
days inactive
4218
days old
linux-audio-user@lists.linuxaudio.org
8 comments
5 participants
participants (5)
-
Gabbe Nord -
Gabriel Beddingfield -
Jeremy Jongepier -
Len Ovens -
Peder Hedlund