lkml.org 
[lkml]   [2008]   [Oct]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [alsa-devel] 2.6.26.[6|7] vs. rt11 vs. alsa (usb) midi
At Sat, 25 Oct 2008 19:46:27 -0700,
Fernando Lopez-Lezcano wrote:
>
> Hi... anyone out there also having problem with this combination?
> 2.6.26.7 or 2.6.26.6 with 2.6.26.6-rt11 and alsa MIDI
> It looks to me like alsa midi is broken.
>
> Probably an interaction with the realtime kernel patch. A Fedora kernel
> based on 2.6.26.6 (2.6.26.6-49 on fc8) works fine, a very similarly
> patched kernel that includes the realtime patch does not. The
> configurations for both are almost the same (today I tried to change
> some of the most obvious differences and rebuild, with the same
> result).
>
> No problems with 2.6.24.7-rt21.
>
> Test: boot, login, plugin an external usb keyboard (Yamaha P250), it is
> recognized, use qjackctl alsa patchbay to connect it to kmidimon,
> kmidimon sees only _one_ midi message and that's it. Kmidimon can't be
> killed after that.

What about other MIDI devices on other bus, e.g. an MPU401 on a PCI
soundcard or so? There is a possibility of breakage in the USB driver
side, too.


Takashi


\
 
 \ /
  Last update: 2008-10-27 09:15    [W:0.085 / U:0.644 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site