On Thu, 2012-09-13 at 15:15 +0200, Nigel Henry wrote: -------- Forwarded Message -------- From: Ralf Mardorf <ralf.mardorf(a)alice-dsl.net> To: jy <jypllx(a)gmail.com> Cc: linux-audio-user(a)lists.linuxaudio.org Subject: Re: [LAU] MIDI keyboard not recognized Date: Thu, 13 Sep 2012 13:00:38 +0200 [snip] [spinymouse@archlinux ~]$ lsmod | grep snd_seq_midi [spinymouse@archlinux ~]$ lsmod | grep snd [snip] usbcore 147434 5 snd_usb_audio,ohci_hcd,snd_usbmidi_lib,ehci_hcd,usbhid [snip] And now: [spinymouse@archlinux ~]$ lsmod | grep snd_seq_midi snd_seq_midi 5328 0 snd_seq_midi_event 5692 1 snd_seq_midi snd_seq 50881 6 snd_seq_midi_event,snd_seq_dummy,snd_seq_midi snd_rawmidi 18479 4 snd_hdspm,snd_usbmidi_lib,snd_mpu401_uart,snd_seq_midi snd_seq_device 5300 4 snd_seq,snd_rawmidi,snd_seq_dummy,snd_seq_midi Perhaps it was loaded, when I opened Muse2, however, on my system everything is ok and after I plug in an USB MIDI interface and a KORG nanoKONTROL snd_seq_midi wasn't shown, but usbcore was shown. usbcore is missing for the output the OP posted. Regards, Ralf PS: Today my mails again are rejected by linuxaudio.org only.

intrigued by all this module stuff (i believe there is something about it) i checked my blacklisted modules and discovered a blacklist-oss.conf which is as follow $ cat /etc/modprobe.d/blacklist-oss.conf blacklist ac97 blacklist ac97_codec blacklist ac97_plugin_ad1980 blacklist ad1848 blacklist ad1889 blacklist adlib_card blacklist aedsp16 blacklist ali5455 blacklist btaudio blacklist cmpci blacklist cs4232 blacklist cs4281 blacklist cs461x blacklist cs46xx blacklist emu10k1 blacklist es1370 blacklist es1371 blacklist esssolo1 blacklist forte blacklist gus blacklist i810_audio blacklist kahlua blacklist mad16 blacklist maestro blacklist maestro3 blacklist maui blacklist mpu401 blacklist nm256_audio blacklist opl3 blacklist opl3sa blacklist opl3sa2 blacklist pas2 blacklist pss blacklist rme96xx blacklist sb blacklist sb_lib blacklist sgalaxy blacklist sonicvibes blacklist sound blacklist sscape blacklist trident blacklist trix blacklist uart401 blacklist uart6850 blacklist via82cxxx_audio blacklist v_midi blacklist wavefront blacklist ymfpci blacklist ac97_plugin_wm97xx blacklist ad1816 blacklist audio blacklist awe_wave blacklist dmasound_core blacklist dmasound_pmac blacklist harmony blacklist sequencer blacklist soundcard blacklist usb-midi the last line seems really strange, why would usb-midi be blacklisted ????? jy 2012/9/13 jy <jypllx(a)gmail.com>

On Thu, 2012-09-13 at 20:14 +0200, jy wrote: *?* After startup, before I run Qtractor snd_seq_midi wasn't loaded. After running Qtractor (even without starting jackd) snd_seq_midi is loaded. [spinymouse@archlinux ~]$ lsmod | grep snd_seq_midi [spinymouse@archlinux ~]$ lsmod | grep snd_seq_midi snd_seq_midi 5328 0 snd_seq_midi_event 5692 1 snd_seq_midi snd_seq 50881 3 snd_seq_midi_event,snd_seq_dummy,snd_seq_midi snd_rawmidi 18479 3 snd_hdspm,snd_mpu401_uart,snd_seq_midi snd_seq_device 5300 4 snd_seq,snd_rawmidi,snd_seq_dummy,snd_seq_midi [spinymouse@archlinux ~]$ modinfo snd_seq_midi filename: /lib/modules/3.5.3-1-ARCH/kernel/sound/core/seq/snd-seq-midi.ko.gz license: GPL description: Advanced Linux Sound Architecture sequencer MIDI synth. author: Frank van de Pol <fvdpol(a)coil.demon.nl>nl>, Jaroslav Kysela <perex(a)perex.cz> depends: snd-seq-midi-event,snd-seq,snd-rawmidi,snd-seq-device intree: Y vermagic: 3.5.3-1-ARCH SMP preempt mod_unload modversions parm: output_buffer_size:Output buffer size in bytes. (int) parm: input_buffer_size:Input buffer size in bytes. (int) I've got 12.04, Precise installed too, but I don't have time to boot it now. However, Precise does work here. Regards, Ralf

On Thursday 13 September 2012 19:25, jy wrote: No. forget about snd_seq_midi as I've an idea it's only for soundcards that have a hardware synth like my Audigy 2 Soundblaster. More important is the usbcore module which Ralf mentions is missing in your lsmod. It's a dependency for snd_usb_audio and I've had someone else in the past where that wasn't loading and caused similar problems to yours. So do a: sudo modprobe usbcore If it doesn't immediately resolve the problem add it on a line in /etc/modules and reboot as it may need to be loaded before snd_usb_audio as it's a dependency. You'll need it in /etc/modules anyway if there's something stopping it being loaded automatically. All the best. Nigel.

On Thu, 2012-09-13 at 21:11 +0200, Nigel Henry wrote: I booted Ubuntu Studio Precise. spinymouse@precise:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.1 LTS Release: 12.04 Codename: precise spinymouse@precise:~$ uname -a Linux precise 3.2.0-23-lowlatency #31-Ubuntu SMP PREEMPT Wed Apr 11 02:24:03 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Connected a KORG nanoKONTROL spinymouse@precise:~$ lsmod | grep usbcore spinymouse@precise:~$ QJackCtl's ALSA tab does show "nanoKONTROL" Disconnected the nanoKONTROL and connected a swissonic USB MIDI IO device spinymouse@precise:~$ lsmod | grep usbcore spinymouse@precise:~$ QJackCtl's ALSA tab does show "USB Device" Reboot spinymouse@precise:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.1 LTS Release: 12.04 Codename: precise spinymouse@precise:~$ uname -a Linux precise 3.0.30 #1 SMP PREEMPT Sun May 6 22:44:54 CEST 2012 x86_64 x86_64 x86_64 GNU/Linux Connected a KORG nanoKONTROL spinymouse@precise:~$ lsmod | grep usbcore spinymouse@precise:~$ QJackCtl's ALSA tab does show "nanoKONTROL" Disconnected the nanoKONTROL and connected a swissonic USB MIDI IO device spinymouse@precise:~$ lsmod | grep usbcore QJackCtl's ALSA tab does show "USB Device" spinymouse@precise:~$ sudo modprobe usbcore [sudo] password for spinymouse: spinymouse@precise:~$ Both kernels are used with threadirqs. 3.2.0-23-lowlatency is from the repositories, 3.0.30 is a self-build kernel. So here no usbcore too, but everything is ok. Regards, Ralf

On Thu, 2012-09-13 at 22:14 +0200, Jeremy Jongepier wrote: Apologize, I forget to check this. spinymouse@precise:~$ lsmod | grep snd_seq_midi snd_seq_midi 12848 0 snd_seq_midi_event 13316 1 snd_seq_midi snd_seq 56993 3 snd_seq_dummy,snd_seq_midi,snd_seq_midi_event snd_rawmidi 26976 4 snd_hdspm,snd_usbmidi_lib,snd_mpu401_uart,snd_seq_midi snd_seq_device 13132 4 snd_seq_dummy,snd_seq_midi,snd_seq,snd_rawmidi spinymouse@precise:~$ sudo modprobe snd_seq_midi No output for sudo modprobe snd_seq_midi. Oops :D. spinymouse@precise:~$ modinfo snd_seq_midi filename: /lib/modules/3.0.30/kernel/sound/core/seq/snd-seq-midi.ko license: GPL description: Advanced Linux Sound Architecture sequencer MIDI synth. author: Frank van de Pol <fvdpol(a)coil.demon.nl>nl>, Jaroslav Kysela <perex(a)perex.cz> srcversion: A579850A9D01B2F45AF32BF depends: snd-seq-midi-event,snd-seq,snd-rawmidi,snd-seq-device vermagic: 3.0.30 SMP preempt mod_unload modversions parm: output_buffer_size:Output buffer size in bytes. (int) parm: input_buffer_size:Input buffer size in bytes. (int) spinymouse@precise:~$ modinfo usbcore ERROR: modinfo: could not find module usbcore Again, on my system there aren't issues regarding to QJackCtl's ALSA tab.

On Thu, 2012-09-13 at 22:23 +0200, Ralf Mardorf wrote: QJackCtl tab Misc, "[x] Enable ALSA sequencer support" is enabled. spinymouse@precise:~$ jackd -V jackdmp 1.9.8

Hi all, I re-read the whole thread. So basically, for now and looking at the various logs, there's something ALSA related that's not clear but I'm not sure wether it's modules or something else. This is my kernel version : Linux 3.2.0-23-lowlatency-pae #31-Ubuntu SMP PREEMPT Wed Apr 11 04:07:36 UTC 2012 i686 i686 i386 GNU/Linux Here's basically what we know so far : * keyboard is detected, it's present in both lsusb and amidi -l. Qjackctl lists it as hw:1 in the interface list. * snd_usb_audio is present and loaded * snd_seq_midi is missing (as says modinfo) but some people say that it's not necessary. I tried to load it manually (sudo modprobe snd_seq_midi) but a fatal error occurs saying there's no such module. After a quick look, I found that I have snd-seq-midi-emul and snd-seq-midi-event modules. I'm deducing from these names that snd-seq-midi is actually installed but it might have changed name slightly. * usbcore is also missing. I tried to load it manually (sudo modprobe usbcore) but nothing happens. Looking at the ALSA pages, there seems to be no usbcore module but a usbaudio one (supposed to handle both audio and MIDI hardware) which is not present. See http://alsa.opensrc.org/Usb-audio * when running jack with no midi driver and use a2jmidid -e instead, the keyboard does not appear in the MIDI tab. Here's what I discovered after a little search : * There's seems to be something wrong with my audio card setup. I can see three devices with aplay -l but only 2 in the qjackctl settings, one of them with a different name. I might wanna try to reinstall the audio drivers Realtek ACL888. So basically, the strangest thing is probably that ALSA properly recognizes the keyboard (amidi -l sees it) whereas a2jmidid -e does not. Any idea on this one ? Where would a2jmidid go look for ALSA midi ports ? Thank !! jy 2012/9/14 jy <jypllx(a)gmail.com>

On Mon, 2012-09-17 at 22:23 +0200, jy wrote: I'm missing this module for the same Ubuntu Studio kernel, but 64bit too. Perhaps it's a new module for kernels > 3.2. Regards, Ralf

On Monday 17 September 2012, jy wrote: And here is the list of files that are installed by that package: http://packages.ubuntu.com/precise/i386/linux-image-3.2.0-23-lowlatency- pae/filelist Two observations: there is no module "usbcore.ko" for this kernel, but there is one named "snd-seq-midi.ko". You may check if the file is missing in your machine, or it is corrupt. Another easy verification that you can do is: start the machine with a live CD/DVD disk, checking lsmod before and after you plug the keyboard. Beware that the module file name is "snd-seq-midi" (with "-"), but lsmod prints "snd_seq_midi" (with "_"). Regards, Pedro

2012/9/18 jy <jypllx(a)gmail.com> I'm figuring reinstalling the 3.2.0-23-lowlatency-pae kernel... :-/ Am I correct ? jy

2012/9/18 Pedro Lopez-Cabanillas <pedro.lopez.cabanillas(a)gmail.com> I installed another kernel: 3.2.0-23-lowlatency (not pae). Keyboard works out of the box and snd-seq-midi loads perfectly. I guess some tweaking with the audio configuration. Maybe the installation of my audio drivers since it's the only audio-related operation I did since the install. Nope nothing like this.... Well since the new kernel solved everything, I think I'm gonna be allright now. I'll do a disk check though. It's a good idea. I'm also gonna reinstall 3.2.0-23-lowlatency-pae kernel and see if the problem remains... Thanks a lot to all of you, you pointed the right direction :) I always love when the community effort is rewarded with a big SOLVED in the title of thread I'll keep you posted about the 3.2.0-23-lowlatency-pae reinstall ! Cheers and thanks jy