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#1 2011-05-20 22:03:32
- jwm-art
- Member
- Registered: 2011-02-01
- Posts: 87
ALSA device group ownership with 2.6.39-1
Run updates earlier and now MIDI applications no longer have permissions to use /dev/snd/seq. Seems while other devices within /dev/snd are in the audio group, /dev/snd/seq is not. I'm not sure what is the root cause.
snd_ice1712 57822 3
snd_ice17xx_ak4xxx 2364 1 snd_ice1712
snd_ak4xxx_adda 8797 2 snd_ice1712,snd_ice17xx_ak4xxx
snd_cs8427 6673 1 snd_ice1712
snd_ac97_codec 110807 1 snd_ice1712
snd_pcm 71032 4 snd_ice1712,snd_ac97_codec
snd_timer 18896 1 snd_pcm
snd_page_alloc 7017 1 snd_pcm
snd_i2c 3865 2 snd_ice1712,snd_cs8427
snd_mpu401_uart 5779 1 snd_ice1712
snd_rawmidi 18826 1 snd_mpu401_uart
snd_seq_device 5100 1 snd_rawmidi
snd 55336 14 snd_ice1712,snd_ak4xxx_adda,snd_cs8427,snd_ac97_codec,snd_pcm,snd_timer,snd_i2c,snd_mpu401_uart,snd_rawmidi,snd_seq_devicedrwxr-xr-x 2 root root 60 May 20 21:43 by-path
crw-rw----+ 1 root audio 116, 4 May 20 21:43 controlC0
crw-rw----+ 1 root audio 116, 3 May 20 21:43 pcmC0D0c
crw-rw----+ 1 root audio 116, 2 May 20 21:43 pcmC0D0p
crw------- 1 root root 116, 1 May 20 21:43 seq
crw-rw----+ 1 root audio 116, 33 May 20 21:43 timerOffline
#3 2011-05-20 22:31:11
- jwm-art
- Member
- Registered: 2011-02-01
- Posts: 87
Re: ALSA device group ownership with 2.6.39-1
falconindy wrote:
This is more likely related to udev 169/170 than it is the kernel update.
Any ideas on where to look to start figuring out the [probable misconfiguration] problem? /etc/udev/rules.d only has two files: 10-local.rules and 70-infrared.rules.
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#5 2011-05-21 12:46:38
- jwm-art
- Member
- Registered: 2011-02-01
- Posts: 87
Re: ALSA device group ownership with 2.6.39-1
I submitted a bug report:
http://bugs.archlinux.org/task/24362#comment77359
It seems the /dev/snd/seq node is created earlier than others in /dev/snd. The suggested work-a-round is to add snd_seq to the modules array.
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