Jack fails to start

What other apps and distros do you use to round out your studio?

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khz
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Re: Jack fails to start

Post by khz »

Test different settings in qjackctl. As an idea helps
http://bandshed.net/pdf/ AVL2018UserManual.pdf >> AUDIO & MIDI IN AV LINUX
http://libremusicproduction.com/article ... -jack.html.

Have you chosen your interface?
redu wrote: Sun Jun 07, 2020 7:51 am jackd -R -d alsa -d hw:0,0
Cannot initialize driver
redu wrote: Sun Jun 07, 2020 7:51 am lspci
00:1f.3 Multimedia audio controller: Intel Corporation Cannon Point-LP High Definition Audio Controller (rev 30)
Looks like it is correct. Any other setting then.
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thetotalchaos
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Re: Jack fails to start

Post by thetotalchaos »

Kott wrote: Mon Jun 08, 2020 6:13 am
thetotalchaos wrote: Mon Jun 08, 2020 5:16 am
Kott wrote: Mon Jun 08, 2020 2:54 am

How can low latency kernel resolve broken jackd start?
Pretty easily, especially if it is jack1. It cannot have realtime priority and it doesn't start.
My bet is that its something that the user underestimates or overlooks. Not saying much... :lol:
What realtime priority and who cannot have?
I use default kernel (no RT or lowlatency even) and jackd (and jack1) works fine.
But are you using Ubuntu or Debian, or you are using Archlinux and think the kernels are the same?
Check out my latest music album Le Femme Robotique 2021
https://totalchaos-music.bandcamp.com/a ... -viii-2006
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Re: Jack fails to start

Post by Kott »

thetotalchaos wrote: Tue Jun 09, 2020 7:43 pm
Kott wrote: Mon Jun 08, 2020 6:13 am
thetotalchaos wrote: Mon Jun 08, 2020 5:16 am

Pretty easily, especially if it is jack1. It cannot have realtime priority and it doesn't start.
My bet is that its something that the user underestimates or overlooks. Not saying much... :lol:
What realtime priority and who cannot have?
I use default kernel (no RT or lowlatency even) and jackd (and jack1) works fine.
But are you using Ubuntu or Debian, or you are using Archlinux and think the kernels are the same?
What you mean by "same"?
They may differ in version, config opts, patches. But userspace interact is the same in common way, otherwise point of linux distros will be less than nothing.

Can you provide any proof of RT kernel and Jackd dependency? Because:
Jack doesn't need RT Kernel. That even said by jack devs: https://jackaudio.org/faq/realtime_vs_r ... ernel.html

And jack works in common distros with stock kernel out of the box. Or Ubuntu (or other distro maker) provides misfunctional application intentional?

And such advices as install RT kernel to fix jack gives nothing, than unnecasary movements and wasted time.
redu
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Re: Jack fails to start

Post by redu »

redu@ENVY2:~$ jackd -v -ddummy
jackdmp 1.9.12
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2016 Grame.
Copyright 2016-2017 Filipe Coelho.
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
no message buffer overruns
no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
Jack: JackPosixThread::StartImp : create non RT thread
Jack: JackPosixThread::ThreadHandler : start
Jack: JackDriver::Open capture_driver_name = dummy
Jack: JackDriver::Open playback_driver_name = dummy
Jack: Check protocol client = 8 server = 8
Jack: JackEngine::ClientInternalOpen: name = system
Jack: JackEngine::AllocateRefNum ref = 0
Jack: JackLinuxFutex::Allocate name = jack_sem.1000_default_system val = 0
Jack: JackEngine::NotifyAddClient: name = system
Jack: JackGraphManager::SetBufferSize size = 1024
Jack: JackConnectionManager::DirectConnect first: ref1 = 0 ref2 = 0
Jack: JackGraphManager::ConnectRefNum cur_index = 0 ref1 = 0 ref2 = 0
Jack: JackDriver::SetupDriverSync driver sem in flush mode
Jack: JackSocketServerChannel::Open
Jack: JackServerSocket::Bind : addr.sun_path /dev/shm/jack_default_1000_0
Jack: JackSocketServerChannel::BuildPoolTable size = 1
Jack: JackEngine::Open
Jack: JackClientSocket::Connect : addr.sun_path /dev/shm/jack_default_1000_0
Jack: JackEngine::ClientInternalOpen: name = freewheel
Jack: JackEngine::AllocateRefNum ref = 1
Jack: JackLinuxFutex::Allocate name = jack_sem.1000_default_freewheel val = 0
Jack: JackEngine::NotifyAddClient: name = freewheel
Jack: JackDriver::ClientNotify ref = 1 driver = system name = freewheel notify = 0
Jack: JackDriver::ClientNotify ref = 0 driver = freewheel name = system notify = 0
Jack: JackConnectionManager::DirectConnect first: ref1 = 1 ref2 = 1
Jack: JackGraphManager::ConnectRefNum cur_index = 0 ref1 = 1 ref2 = 1
Jack: JackDriver::SetupDriverSync driver sem in flush mode
Jack: JackAudioDriver::Attach fBufferSize = 1024 fSampleRate = 48000
Jack: JackEngine::PortRegister ref = 0 name = system:capture_1 type = 32 bit float mono audio flags = 22 buffer_size = 1024
Jack: JackGraphManager::AllocatePortAux port_index = 1 name = system:capture_1 type = 32 bit float mono audio
Jack: JackConnectionManager::AddOutputPort ref = 0 port = 1
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackAudioDriver::Attach fCapturePortList port_index = 1
Jack: JackEngine::PortRegister ref = 0 name = system:capture_2 type = 32 bit float mono audio flags = 22 buffer_size = 1024
Jack: JackGraphManager::AllocatePortAux port_index = 2 name = system:capture_2 type = 32 bit float mono audio
Jack: JackConnectionManager::AddOutputPort ref = 0 port = 2
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackAudioDriver::Attach fCapturePortList port_index = 2
Jack: JackEngine::PortRegister ref = 0 name = system:playback_1 type = 32 bit float mono audio flags = 21 buffer_size = 1024
Jack: JackGraphManager::AllocatePortAux port_index = 3 name = system:playback_1 type = 32 bit float mono audio
Jack: JackConnectionManager::AddInputPort ref = 0 port = 3
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackAudioDriver::Attach fPlaybackPortList port_index = 3
Jack: JackEngine::PortRegister ref = 0 name = system:playback_2 type = 32 bit float mono audio flags = 21 buffer_size = 1024
Jack: JackGraphManager::AllocatePortAux port_index = 4 name = system:playback_2 type = 32 bit float mono audio
Jack: JackConnectionManager::AddInputPort ref = 0 port = 4
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackEngine::ClientNotify: no callback for notification = 9
Jack: JackAudioDriver::Attach fPlaybackPortList port_index = 4
Jack: Clock source : system clock via clock_gettime
Jack: JackServer::Start
Jack: JackThreadedDriver::Start
Jack: JackPosixThread::StartImp : create non RT thread
Jack: JackPosixThread::ThreadHandler : start
Jack: JackThreadedDriver::Init real-time
Jack: JackPosixThread::AcquireRealTimeImp priority = 10
Jack: JackPosixThread::StartImp : create non RT thread
Jack: JackPosixThread::ThreadHandler : start
Jack: JackSocketServerChannel::ClientCreate socket
Jack: JackSocketServerChannel::BuildPoolTable size = 2
Jack: JackSocketServerChannel::BuildPoolTable fSocketTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackRequest::Notification
Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18
Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18
Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18
Jack: JackDriver::ClientNotify ref = 1 driver = freewheel name = freewheel notify = 18
Jack: JackEngine::ClientNotify: no callback for notification = 4
Jack: JackEngine::ClientNotify: no callback for notification = 4
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 7
J
Kott
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Re: Jack fails to start

Post by Kott »

Ok,

Now run with audiocard

jackd -v -dalsa -dhw:0
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thetotalchaos
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Re: Jack fails to start

Post by thetotalchaos »

Kott wrote: Wed Jun 10, 2020 12:13 am
thetotalchaos wrote: Tue Jun 09, 2020 7:43 pm
Kott wrote: Mon Jun 08, 2020 6:13 am

What realtime priority and who cannot have?
I use default kernel (no RT or lowlatency even) and jackd (and jack1) works fine.
But are you using Ubuntu or Debian, or you are using Archlinux and think the kernels are the same?
What you mean by "same"?
They may differ in version, config opts, patches. But userspace interact is the same in common way, otherwise point of linux distros will be less than nothing.

Can you provide any proof of RT kernel and Jackd dependency? Because:
Jack doesn't need RT Kernel. That even said by jack devs: https://jackaudio.org/faq/realtime_vs_r ... ernel.html

And jack works in common distros with stock kernel out of the box. Or Ubuntu (or other distro maker) provides misfunctional application intentional?

And such advices as install RT kernel to fix jack gives nothing, than unnecasary movements and wasted time.
Again not answering my question, assuming that i don't know what i am talking about. In order to apply any RT priorities, your kernel needs to support preemption, like this:

Code: Select all

[biser@totalchaos ~]$ uname -a
Linux totalchaos 5.6.15-arch1-1 #1 SMP PREEMPT Wed, 27 May 2020 23:42:26 +0000 x86_64 GNU/Linux

What you see is the default Archlinux kernel. The Debian/Ubuntu generic kernels does not have the PREEMPT option. Without this you couldn't start Jack with Realtime enabled. I cannot confirm now, if that is still the case, but this was a dealbraker 10 years ago.
But even if you manage to start Jack, your system will perform noticeably poorly.
Check out my latest music album Le Femme Robotique 2021
https://totalchaos-music.bandcamp.com/a ... -viii-2006
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khz
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Re: Jack fails to start

Post by khz »

redu wrote: Sun Jun 07, 2020 7:51 amaplay -l
redu@ENVY2:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sofhdadsp [sof-hda-dsp], device 0: HDA Analog (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 1: HDA Digital (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 3: HDMI1 (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 4: HDMI2 (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 5: HDMI3 (*) []
Subdevices: 1/1
Subdevice #0: subdevice #0
Can you also select these different interfaces in qjackctl setup?
If yes: Try different ones. *Where "card 0: sofhdadsp [sof-hda-dsp], device 0: HDA Analog (*) []" is the correct one.
FZ - Does humor belongs in Music?
GNU/LINUX@AUDIO ~ /Wiki $ Howto.Info && GNU/Linux Debian installing >> Linux Audio Workstation LAW
  • I don't care about the freedom of speech because I have nothing to say.
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thetotalchaos
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Re: Jack fails to start

Post by thetotalchaos »

@redu By the way, do you have pulseaudio-module-jack installed?
is this chosen as your default device in jack?

Code: Select all

card 0: sofhdadsp [sof-hda-dsp], device 0: HDA Analog (*) []
also try to uncheck the realtime-priority tick.
Check out my latest music album Le Femme Robotique 2021
https://totalchaos-music.bandcamp.com/a ... -viii-2006
Kott
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Re: Jack fails to start

Post by Kott »

thetotalchaos wrote: Wed Jun 10, 2020 4:12 pm Again not answering my question, assuming that i don't know what i am talking about. In order to apply any RT priorities, your kernel needs to support preemption, like this:

Code: Select all

[biser@totalchaos ~]$ uname -a
Linux totalchaos 5.6.15-arch1-1 #1 SMP PREEMPT Wed, 27 May 2020 23:42:26 +0000 x86_64 GNU/Linux

What you see is the default Archlinux kernel. The Debian/Ubuntu generic kernels does not have the PREEMPT option. Without this you couldn't start Jack with Realtime enabled. I cannot confirm now, if that is still the case, but this was a dealbraker 10 years ago.
But even if you manage to start Jack, your system will perform noticeably poorly.

Code: Select all

grep PREEMPT /boot/config-4.15.0-101-generic 
CONFIG_PREEMPT_NOTIFIERS=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
# CONFIG_PREEMPTIRQ_EVENTS is not set

cat /etc/os-release 
NAME="Ubuntu"
VERSION="18.04.4 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.4 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

jackd -R -dalsa -dhw:0
jackdmp 1.9.12
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2016 Grame.
Copyright 2016-2018 Filipe Coelho.
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
no message buffer overruns
no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 2 periods for playback
It just require permissions to /dev/rtc0 and /dev/hpet
redu
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Re: Jack fails to start

Post by redu »

redu@ENVY2:~$ jackd -v -dalsa -dhw:0
jackdmp 1.9.12
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2016 Grame.
Copyright 2016-2017 Filipe Coelho.
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
no message buffer overruns
no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
Jack: JackPosixThread::StartImp : create non RT thread
Jack: JackPosixThread::ThreadHandler : start
Jack: playback device hw:0
Jack: capture device hw:0
Jack: JackDriver::Open capture_driver_name = hw:0
Jack: JackDriver::Open playback_driver_name = hw:0
Jack: Check protocol client = 8 server = 8
Jack: JackEngine::ClientInternalOpen: name = system
Jack: JackEngine::AllocateRefNum ref = 0
Jack: JackLinuxFutex::Allocate name = jack_sem.1000_default_system val = 0
Jack: JackEngine::NotifyAddClient: name = system
Jack: JackGraphManager::SetBufferSize size = 1024
Jack: JackConnectionManager::DirectConnect first: ref1 = 0 ref2 = 0
Jack: JackGraphManager::ConnectRefNum cur_index = 0 ref1 = 0 ref2 = 0
Jack: JackDriver::SetupDriverSync driver sem in flush mode
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit integer little-endian
ALSA: cannot set period size to 1024 frames for capture
ALSA: cannot configure capture channel
Jack: JackDriver::Close
Jack: JackConnectionManager::DirectDisconnect last: ref1 = 0 ref2 = 0
Jack: JackGraphManager::DisconnectRefNum cur_index = 0 ref1 = 0 ref2 = 0
Jack: JackEngine::ClientInternalClose ref = 0
Jack: JackEngine::ClientCloseAux ref = 0
Jack: JackGraphManager::RemoveAllPorts ref = 0
Released audio card Audio0
audio_reservation_finish
Jack: ~JackDriver
Cannot initialize driver
Jack: no message buffer overruns
Jack: JackPosixThread::Stop
Jack: JackPosixThread::ThreadHandler : exit
JackServer::Open failed with -1
Jack: Succeeded in unlocking 82280346 byte memory area
Jack: JackShmMem::delete size = 0 index = 0
Jack: ~JackDriver
Jack: Succeeded in unlocking 1187 byte memory area
Jack: JackShmMem::delete size = 0 index = 1
Jack: Cleaning up shared memory
Jack: Cleaning up files
Jack: Unregistering server `default'
Failed to open server
redu@ENVY2:~$
redu
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Joined: Tue Mar 10, 2015 3:33 pm

Re: Jack fails to start

Post by redu »

As said in my first message:
Have got two new laptops: Lenovo c740 and HP Envy x360.
Both are equipped with Intel Cannon Point-LP chips.

Anybody here having a new PC with Cannon Point-LP chip set? For reference? Jack wouuld'nt start in these machines of mine? It starts well in all older machines of mine.
Kott
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Re: Jack fails to start

Post by Kott »

ALSA: cannot set period size to 1024 frames for capture
hm, lets reduce period

jackd -v -dalsa -p512 -dhw:0
redu
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Re: Jack fails to start

Post by redu »

Kott wrote: Fri Jun 12, 2020 1:00 am
ALSA: cannot set period size to 1024 frames for capture
hm, lets reduce period

jackd -v -dalsa -p512 -dhw:0
Failed to open server
Kott
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Re: Jack fails to start

Post by Kott »

what error occurs?
redu
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Re: Jack fails to start

Post by redu »

redu@ENVY2:~$ jackd -v -dalsa -p512 -dhw:0
jackdmp 1.9.12
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2016 Grame.
Copyright 2016-2017 Filipe Coelho.
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
no message buffer overruns
no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
Jack: JackPosixThread::StartImp : create non RT thread
Jack: JackPosixThread::ThreadHandler : start
Jack: playback device hw:0
Jack: capture device hw:0
Jack: frames per period = 512
Jack: JackDriver::Open capture_driver_name = hw:0
Jack: JackDriver::Open playback_driver_name = hw:0
Jack: Check protocol client = 8 server = 8
Jack: JackEngine::ClientInternalOpen: name = system
Jack: JackEngine::AllocateRefNum ref = 0
Jack: JackLinuxFutex::Allocate name = jack_sem.1000_default_system val = 0
Jack: JackEngine::NotifyAddClient: name = system
Jack: JackGraphManager::SetBufferSize size = 512
Jack: JackConnectionManager::DirectConnect first: ref1 = 0 ref2 = 0
Jack: JackGraphManager::ConnectRefNum cur_index = 0 ref1 = 0 ref2 = 0
Jack: JackDriver::SetupDriverSync driver sem in flush mode
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|512|2|48000|0|0|nomon|swmeter|-|32bit
configuring for 48000Hz, period = 512 frames (10.7 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit integer little-endian
ALSA: cannot set period size to 512 frames for capture
ALSA: cannot configure capture channel
Jack: JackDriver::Close
Jack: JackConnectionManager::DirectDisconnect last: ref1 = 0 ref2 = 0
Jack: JackGraphManager::DisconnectRefNum cur_index = 0 ref1 = 0 ref2 = 0
Jack: JackEngine::ClientInternalClose ref = 0
Jack: JackEngine::ClientCloseAux ref = 0
Jack: JackGraphManager::RemoveAllPorts ref = 0
Released audio card Audio0
audio_reservation_finish
Jack: ~JackDriver
Cannot initialize driver
Jack: no message buffer overruns
Jack: JackPosixThread::Stop
Jack: JackPosixThread::ThreadHandler : exit
JackServer::Open failed with -1
Jack: Succeeded in unlocking 82280346 byte memory area
Jack: JackShmMem::delete size = 0 index = 0
Jack: ~JackDriver
Jack: Succeeded in unlocking 1187 byte memory area
Jack: JackShmMem::delete size = 0 index = 1
Jack: Cleaning up shared memory
Jack: Cleaning up files
Jack: Unregistering server `default'
Failed to open server

Must wait till 20.10. Ubuntu release?
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