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Blutrache
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PostPosted: Sun Feb 10, 2013 10:36 am    Post subject: [SOLVED] Line6 PODxt problem Reply with quote

Hello, have a problem with Line6 PODxt (external soundcard). System can find it, but doesn' want to use it as a soundcard. Kernel: CONFIG_LINE6_USB=y.
dmesg. Watch from 2551... http://bpaste.net/show/76377/
lsusb http://bpaste.net/show/76379/
aplay -l (empty) http://bpaste.net/show/76380/


Last edited by Blutrache on Tue Feb 12, 2013 8:57 pm; edited 2 times in total
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NeddySeagoon
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PostPosted: Sun Feb 10, 2013 11:34 am    Post subject: Reply with quote

Blutrache,

Welcome to Gentoo.

A few things.

Some devices to not work when they are attached to external USB hubs. Try plugging it into the system directly.

Your USB device arrangement can be important. Each USB root hub, thats norammly a stacked pair of USB sockets is permitted to supply 500mA for all connected devices.
No damage happens if you go over the limit, one or more devices don't work.
Note that powered USB hubs can normally supply 500mA to each port.

Please post your
Code:
lsusb -v
That will show all the Max Power requirements for each device as well as how they are connected.

Is your PODxt a real soundcard or is it a midi device?
You probably need USB-SND-AUDIO in your kernel anyway.
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Computer users fall into two groups:-
those that do backups
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Blutrache
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PostPosted: Sun Feb 10, 2013 12:02 pm    Post subject: Reply with quote

NeddySeagoon, thanks. Well, I have a laptop, so I can't plug it directly.
lsusb -v http://bpaste.net/show/76386/ But it has own powersupply, so I don't think there is a problem.
CONFIG_SND_USB=y and CONFIG_SND_USB_AUDIO=y.
It worked well under linux about a year ago, but I haven't use it since then.
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NeddySeagoon
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PostPosted: Sun Feb 10, 2013 12:37 pm    Post subject: Reply with quote

Blutrache,

Ah yes - I has forgotten that. My son has a PODxt.
Looking at your original lsusb you have

Code:
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 09da:000a A4 Tech Co., Ltd Optical Mouse Opto 510D
Bus 003 Device 003: ID 0e41:5044 Line6, Inc. PODxt
so as you say, the power supply is unlikely to be a problem

Your dmesg shows that the line6usb driver has found and bound to the device, so thats good.

Unfortunately, I don't know what supposed to happen next.
What do you have in /dev/snd before you connect the PODxt and after its connected?

The kernel option
Code:
Line6 USB support (LINE6_USB)
opens a menu of optional features.
Do you need any of those?
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NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.


Last edited by NeddySeagoon on Sun Feb 10, 2013 12:52 pm; edited 1 time in total
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Blutrache
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PostPosted: Sun Feb 10, 2013 12:44 pm    Post subject: Reply with quote

NeddySeagoon, before
Code:
by-path
controlC0
controlC1
hwC0D0
hwC1D0
pcmC0D0c
pcmC0D0p
pcmC1D3p
seq
timer

and the same after
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NeddySeagoon
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PostPosted: Sun Feb 10, 2013 12:53 pm    Post subject: Reply with quote

Blutrache,

I just editied my last post - you posted meanwhile.
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NeddySeagoon

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Blutrache
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PostPosted: Sun Feb 10, 2013 12:59 pm    Post subject: Reply with quote

NeddySeagoon, well, actually no, but I tried to activate them - that didn't help.
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PostPosted: Sun Feb 10, 2013 1:03 pm    Post subject: Reply with quote

Blutrache,

The debug option should have produced lots of logspam somewhere.

Did it?
Was there anything useful there ?

Are you sure you are running the kernel you think you are?
Look at the build date/time in
Code:
uname -a

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NeddySeagoon

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Blutrache
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PostPosted: Sun Feb 10, 2013 1:19 pm    Post subject: Reply with quote

Yes, but it's useless, example:
Code:
[   98.065366] line6usb 3-1:1.0: Line6 PODxt now attached
[   99.065728] line6usb 3-1:1.0: S0000: F0 00 01 0C 03 75 F7    .....u.
[   99.101143] line6usb 3-1:1.0: R0000: F2 00 01 0C 03 74 02 42 .....t.B
[   99.101151] line6usb 3-1:1.0: R0008: 6C 61 63 6B 66 61 63 65 lackface
[   99.101156] line6usb 3-1:1.0: R0010: 20 4C 75 78 20 20 20 20  Lux   
[   99.101161] line6usb 3-1:1.0: R0018: 20 20 20 20 20 20 20 20         
[   99.109053] line6usb 3-1:1.0: R0000: 20 20 20 20 20 20 20 00        .
[   99.109059] line6usb 3-1:1.0: R0008: 00 00 00 3F 00 00 7F 00 ...?....
[   99.109062] line6usb 3-1:1.0: R0010: 72 00 00 0E 7F 7F 48 63 r.....Hc
[   99.109065] line6usb 3-1:1.0: R0018: 6A 21 00 0A 6E 00 3F 0F j!..n.?.
[   99.117104] line6usb 3-1:1.0: R0000: 00 7F 00 00 03 21 06    .....!.
[   99.125044] line6usb 3-1:1.0: R0000: 00 00 2B 12 7F 00 00 46 ..+....F
[   99.125055] line6usb 3-1:1.0: R0008: 3F 7F 1C 00 00 00 00 7F ?.......
[   99.125060] line6usb 3-1:1.0: R0010: 00 00 00 01 18 00 00 00 ........
[   99.125065] line6usb 3-1:1.0: R0018: 33 7F 02 00 24 00 78 00 3...$.x.
[   99.133103] line6usb 3-1:1.0: R0000: 00 00 00 00 00 00 00 07 ........
[   99.133112] line6usb 3-1:1.0: R0008: 00 00 00 05 26 41 00 4B ....&A.K
[   99.133117] line6usb 3-1:1.0: R0010: 56 00 00 00 00 40 00 00 V....@..
[   99.133121] line6usb 3-1:1.0: R0018: 03 08 4C 00 00 00 00 00 ..L.....
[   99.141089] line6usb 3-1:1.0: R0000: 00 00 00 00 00 00 00 00 ........
[   99.141098] line6usb 3-1:1.0: R0008: 00 59 00 00 0E 00 00 00 .Y......
[   99.141102] line6usb 3-1:1.0: R0010: 00 00 40 00 40 40 00 40 ..@.@@.@
[   99.141107] line6usb 3-1:1.0: R0018: 0E 7F 00 00 00 00 00 00 ........
[   99.149058] line6usb 3-1:1.0: R0000: F7                      .
[   99.149069] line6usb 3-1:1.0: r0000: F2 00 01 0C 03 74 02 42 .....t.B

Yes, I'm using right kernel, funny question, actually :)
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NeddySeagoon
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PostPosted: Sun Feb 10, 2013 1:26 pm    Post subject: Reply with quote

Blutrache,

You would be surprised how many users here have fixed their problem but didn't know it because they had messed up the kernel build or install.
Rule 1 is assume nothing.
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NeddySeagoon

Computer users fall into two groups:-
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Blutrache
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PostPosted: Sun Feb 10, 2013 6:55 pm    Post subject: Reply with quote

Upd: try to use Ubuntu Studio LiveCD (12.10) - the same problem.
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Blutrache
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PostPosted: Mon Feb 11, 2013 6:04 pm    Post subject: Reply with quote

Upd2: worked well with LiveDVD Gentoo 12.1. Still can't find the problem :(
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PostPosted: Mon Feb 11, 2013 7:48 pm    Post subject: Reply with quote

Blutrache,

Mabe the kernel broke the driver between the one on the liveDVD and your current kernel?
Try a kernel version somewhere in the middle, if its still broken try one in the middle of the bottom half of the range and so on.

It would also be valuable information to know if the same kernel as is on the DVD works when you build it for yourself.
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NeddySeagoon

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Blutrache
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PostPosted: Tue Feb 12, 2013 8:42 pm    Post subject: Reply with quote

SOLVED. I've downloaded driver from http://line6linux.sourceforge.net/ and it works. Actually, I don't think that driver which goes with kernel works anymore.
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PostPosted: Tue Feb 12, 2013 9:22 pm    Post subject: Reply with quote

Blutrache,

Well done!
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NeddySeagoon

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