[LAU] MIDI keyboard not recognized

Nigel Henry cave.dnb2m97pp at aliceadsl.fr
Thu Sep 13 13:15:38 UTC 2012


On Thursday 13 September 2012 12:32, jy wrote:
> 2012/9/13 Ralf Mardorf <ralf.mardorf at alice-dsl.net>
>
> > On Thu, 2012-09-13 at 07:38 +0200, jy wrote:
> > > and after :
> > >
> > > $ lsmod | grep snd
> > > snd_usb_audio          83446  0
> > > snd_usbmidi_lib        22777  1 snd_usb_audio
> > > snd_rawmidi            22278  1 snd_usbmidi_lib
> > > snd_hda_codec_hdmi     30352  1
> > > snd_hda_codec_realtek    95198  1
> > > snd_hda_intel          25788  5
> > > snd_hda_codec          87980  3
> > > snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
> > > snd_hwdep              12910  2 snd_usb_audio,snd_hda_codec
> > > snd_pcm_oss            39968  0
> > > snd_mixer_oss          21707  2 snd_pcm_oss
> > > snd_pcm                69043  5
> > > snd_usb_audio,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_pcm_os
> > >s snd_seq_dummy          12455  0
> > > snd_seq_oss            32416  0
> > > snd_seq_midi_event     13124  1 snd_seq_oss
> > > snd_seq                51504  5
> > > snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
> > > snd_timer              22187  2 snd_pcm,snd_seq
> > > snd_seq_device         12980  4
> > > snd_rawmidi,snd_seq_dummy,snd_seq_oss,snd_seq
> > > snd                    50814  24
> >
> > snd_usb_audio,snd_usbmidi_lib,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_code
> >c_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,
> >snd_pcm,snd_seq_dummy,snd_seq_oss,snd_seq,snd_timer,snd_seq_device
> >
> > > soundcore              12926  2 snd
> > > snd_page_alloc         12841  2 snd_hda_intel,snd_pcm
> > >
> > >
> > > snd_usb_audio loads properly!
> >
> > Isn't usbcore missing?
> > usbcore --> snd_usb_audio,ohci_hcd,snd_usbmidi_lib,ehci_hcd,usbhid
> >
> > at least snd-usb-audio and ehci-hcd are present (logs testifying it
>
> available in the thread). so I think usbcore is not missing but i know
> snd_seq_midi is.
>
> jy

It seems strange that snd_seq_midi is missing on ubuntustudio 12.04. I've seen 
a post where it's missing on the remix version of 12.04 though.

Try:
modinfo snd_seq_midi
This should show if it actually does exist or not. If it does, according to 
some docs on jackd it may need to be forced at bootup. Worth a try, so add 
snd_seq_midi on one line in /etc/modules then reboot and check lsmod again.

Nigel.


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