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Tasklist

FS#44742 - [linux] Enormous big latency with M-Audio Midisport 2x2 Anniversary MIDI interface

Attached to Project: Arch Linux
Opened by Dikiy (dikiy) - Monday, 27 April 2015, 07:25 GMT
Last edited by Doug Newgard (Scimmia) - Sunday, 31 July 2016, 13:08 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Tobias Powalowski (tpowa)
Architecture i686
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description: Enormous big latency with M-Audio MIDI interface


Additional info:
last kernel, logs and dmesg output seems to be ok. The driver is snd-usb-audio.
Interface name: M-Audio Midisport 2x2 Anniversary edition.

The latency between I press a key on a MIDI-keyboard and the message arrives timidity is about 5 sec. If I reconnect the cables, the latency can change from 5 sec to 3 sec, or 0.1 sec. But to 90% of all my tries result in a ~3-5 sec latency.

I tried it on my older laptop (kernel 2.6.32 from Ubuntu 10.04) and it works! I think it's a regression.

Steps to reproduce:

connect M-Audio Midisport 2x2 Anniversary Edition to an USB port, connect an MIDI-keyboard to it. Run timidity server, connect the both with an aconnect tool. Try to play something.
This task depends upon

Closed by  Doug Newgard (Scimmia)
Sunday, 31 July 2016, 13:08 GMT
Reason for closing:  No response
Comment by Samantha McVey (samcv) - Friday, 10 June 2016, 20:30 GMT
Dikiy,
Can you please let me know if you are still experiencing this issue on the latest kernel? Please let me know if we can close this bug or if you are still experiencing this issue. Thank you in advance for your response.

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