1 Jan
2009
1 Jan
'09
3:20 p.m.
Is the midi seq brokenness in newer kernels attributed to the real
time patches only?
And does anyone know what specific real time kernel patch and level
still has a working midi seq?
--
aRDy Music and Rick Dicaire present:
http://www.ardynet.com
http://www.ardynet.com:9000/ardymusic.ogg.m3u
1 Jan
1 Jan
4:34 p.m.
On Thu, Jan 1, 2009 at 2:20 PM, R Dicaire <kritek(a)gmail.com> wrote:
Is the midi seq brokenness in newer kernels attributed
to the real
time patches only?
Not too sure what you mean, since you're not very specific.
ALSA Midi works just fine here, in Ubuntu 8.10, latest kernel. As I
understand it, the RT kernel/patch will kill MIDI.
So I'm pretty sure it's a RT-only problem.
--
Christopher Stamper
Email: christopherstamper(a)gmail.com
Web: http://tinyurl.com/2ooncg
gTalk: http://tinyurl.com/6e359r
Skype: cdstamper
5:45 p.m.
"Christopher Stamper" <christopherstamper(a)gmail.com> writes:
On Thu, Jan 1, 2009 at 2:20 PM, R Dicaire
<kritek(a)gmail.com> wrote:
Is the midi seq brokenness in newer kernels attributed to the real
time patches only?
Not too sure what you mean, since you're not very specific.
ALSA Midi works just fine here, in Ubuntu 8.10, latest kernel. As I understand
it, the RT kernel/patch will kill MIDI.
So I'm pretty sure it's a RT-only problem.
I can confirm:
I only tested it briefly, but with ubuntu 8.10 regular kernel alsa
MIDI behaves OK, whereas with linux-rt I had no joy: good audio
performance but unuseable MIDI latency (with an external usb MIDI
keyboard)
Cheers
--
Emiliano Grilli
Linux user #209089
http://www.emillo.net
5:58 p.m.
On Thu, Jan 1, 2009 at 4:45 PM, Emiliano Grilli <emillo(a)libero.it> wrote:
I only tested it briefly, but with ubuntu 8.10 regular
kernel alsa
MIDI behaves OK, whereas with linux-rt I had no joy: good audio
performance but unuseable MIDI latency (with an external usb MIDI
keyboard)
Thanks, this is what I was afraid of as I can no longer used my usb
midi interface, as well as no midi functionality
in everything else.
So last RT kernel where midi worked?
--
aRDy Music and Rick Dicaire present:
http://www.ardynet.com
http://www.ardynet.com:9000/ardymusic.ogg.m3u
6:13 p.m.
On Thu, Jan 01, 2009 at 04:58:13PM -0500, R Dicaire wrote:
On Thu, Jan 1, 2009 at 4:45 PM, Emiliano Grilli
<emillo(a)libero.it> wrote:
I think 2.6.24, or so I've been told. Alas, a kernel that old won't support my new
EEE's hardware, its ACPI and sleep modes, and all its built-in gadgets.
Slightly different question: what's the estimate on a fix for this problem? Is anyone
working on fixing it? Are we talking weeks, months, years, or "forget about
it"?
Thanks.
-ken
I only tested it briefly, but with ubuntu 8.10
regular kernel alsa
MIDI behaves OK, whereas with linux-rt I had no joy: good audio
performance but unuseable MIDI latency (with an external usb MIDI
ikeyboard)
Thanks, this is what I was afraid of as I can no longer used my usb
midi interface, as well as no midi functionality
in everything else.
So last RT kernel where midi worked?
6:42 p.m.
On Thu, Jan 1, 2009 at 5:13 PM, Ken Restivo <ken(a)restivo.org> wrote:
Slightly different question: what's the estimate
on a fix for this problem? Is anyone working on fixing it? Are we talking weeks, months,
years, or "forget about it"?
Do the RT devs monitor this list, and/or is there a separate mailing
list for RT kernel dev?
--
aRDy Music and Rick Dicaire present:
http://www.ardynet.com
http://www.ardynet.com:9000/ardymusic.ogg.m3u
6:46 p.m.
Quoth R Dicaire at 2009-01-02 09:12...
Do the RT devs monitor this list, and/or is there a
separate mailing
list for RT kernel dev?
There's no way to know who reads this list, but there is a specific list
for the RT kernel. Here's a cut-and-paste of the unsubscription
information. To subscribe, just change the work 'unsubscribe' to
'subscribe':
If you ever want to remove yourself from this mailing
list,
you can send mail to <Majordomo(a)vger.kernel.org> with the following
command in the body of your email message:
unsubscribe linux-rt-users
Cheers
M
--
Matthew Smith
Smiffytech - Technology Consulting & Web Application Development
Business: http://www.smiffytech.com/
Personal: http://www.smiffysplace.com/
LinkedIn: http://www.linkedin.com/in/smiffy
6:50 p.m.
On Thu, Jan 1, 2009 at 5:42 PM, R Dicaire <kritek(a)gmail.com> wrote:
On Thu, Jan 1, 2009 at 5:13 PM, Ken Restivo
<ken(a)restivo.org> wrote:
I found a mailing list, linux-rt-users, and a search on "midi" showed
nothing regarding broken midi seq device access. I don't know enough
of kernel internals to properly report a bug :(
--
aRDy Music and Rick Dicaire present:
http://www.ardynet.com
http://www.ardynet.com:9000/ardymusic.ogg.m3u
Slightly different question: what's the
estimate on a fix for this problem? Is anyone working on fixing it? Are we talking weeks,
months, years, or "forget about it"?
Do the RT devs monitor this list, and/or is there a separate mailing
list for RT kernel dev?
6:59 p.m.
On Thu, Jan 01, 2009 at 05:42:03PM -0500, R Dicaire wrote:
On Thu, Jan 1, 2009 at 5:13 PM, Ken Restivo
<ken(a)restivo.org> wrote:
I thought that there is only one "RT dev", which is Ingo Molnar.
I doubt he follows this list.
I'm sure that others on this list know him and have worked with him, though.
-ken
Slightly different question: what's the
estimate on a fix for this problem? Is anyone working on fixing it? Are we talking weeks,
months, years, or "forget about it"?
Do the RT devs monitor this list, and/or is there a separate mailing
list for RT kernel dev?
8:04 p.m.
On Thu, 2009-01-01 at 14:13 -0800, Ken Restivo wrote:
On Thu, Jan 01, 2009 at 04:58:13PM -0500, R Dicaire
wrote:
Apparently a new rt kernel patch tree (a git repository) is being
created. Apparently we could see a new rt patch in the 2.6.28
timeframe... (no hope for 2.6.26/2.6.27, apparently)
I posted a while back about the midi problems in lkml but there was not
that much feedback. One suggestion led to a working midi input for
external interfaces but the internal timer seemed to still not work (and
I was not able to follow up). And I have no idea about the core reason
for the problem....
BTW, Ingo is not the only rt patch developer...
-- Fernando
On Thu, Jan 1, 2009 at 4:45 PM, Emiliano Grilli
<emillo(a)libero.it> wrote:
I think 2.6.24, or so I've been told. Alas, a kernel that old won't support
my new EEE's hardware, its ACPI and sleep modes, and all its built-in gadgets.
Slightly different question: what's the estimate on a fix for this problem?
Is anyone working on fixing it? Are we talking weeks, months, years, or
"forget about it"? I only tested it briefly, but with ubuntu 8.10
regular kernel alsa
MIDI behaves OK, whereas with linux-rt I had no joy: good audio
performance but unuseable MIDI latency (with an external usb MIDI
ikeyboard)
Thanks, this is what I was afraid of as I can no longer used my usb
midi interface, as well as no midi functionality
in everything else.
So last RT kernel where midi worked?
8:31 p.m.
On Thu, Jan 01, 2009 at 04:04:56PM -0800, Fernando Lopez-Lezcano wrote:
On Thu, 2009-01-01 at 14:13 -0800, Ken Restivo wrote:
Thank you.
Is JACK MIDI an effective workaround? In other words, does JACK open the raw or the
alsa_seq interface? Does it exhibit this problem?
IIRC there is a command-line argument in newer jackd's to provide a software-only
alsaseq-type interface to all the JACK MIDI devices, be they hardware MIDI interfaces or
JACK softsynths. Would doing this obviate the need to use alsaseq at all?
Thanks again for all your work on this!
-ken
On Thu, Jan 01, 2009 at 04:58:13PM -0500, R
Dicaire wrote:
Apparently a new rt kernel patch tree (a git repository) is being
created. Apparently we could see a new rt patch in the 2.6.28
timeframe... (no hope for 2.6.26/2.6.27, apparently)
I posted a while back about the midi problems in lkml but there was not
that much feedback. One suggestion led to a working midi input for
external interfaces but the internal timer seemed to still not work (and
I was not able to follow up). And I have no idea about the core reason
for the problem....
BTW, Ingo is not the only rt patch developer...
On Thu, Jan 1, 2009 at 4:45 PM, Emiliano Grilli
<emillo(a)libero.it> wrote:
I think 2.6.24, or so I've been told. Alas, a kernel that old won't support
my new EEE's hardware, its ACPI and sleep modes, and all its built-in gadgets.
Slightly different question: what's the estimate on a fix for this problem?
Is anyone working on fixing it? Are we talking weeks, months, years, or
"forget about it"? I only tested it briefly, but with ubuntu 8.10
regular kernel alsa
MIDI behaves OK, whereas with linux-rt I had no joy: good audio
performance but unuseable MIDI latency (with an external usb MIDI
ikeyboard)
Thanks, this is what I was afraid of as I can no longer used my usb
midi interface, as well as no midi functionality
in everything else.
So last RT kernel where midi worked?
2 Jan
2 Jan
1:40 a.m.
On Thu, Jan 01, 2009 at 04:58:13PM -0500, R Dicaire wrote:
On Thu, Jan 1, 2009 at 4:45 PM, Emiliano Grilli
<emillo(a)libero.it> wrote:
So it looks like the last reported working is 2.6.26.3-rt3
My EEE uses the Lenny kernel, which is 2.6.26-1-686 so I'll try 2.6.26.3-rt3 and see
what gives.
-ken
I only tested it briefly, but with ubuntu 8.10
regular kernel alsa
MIDI behaves OK, whereas with linux-rt I had no joy: good audio
performance but unuseable MIDI latency (with an external usb MIDI
keyboard)
Thanks, this is what I was afraid of as I can no longer used my usb
midi interface, as well as no midi functionality
in everything else.
So last RT kernel where midi worked?
5619
days inactive
5620
days old
linux-audio-user@lists.linuxaudio.org
11 comments
6 participants
participants (6)
-
Christopher Stamper -
Emiliano Grilli -
Fernando Lopez-Lezcano -
Ken Restivo -
Matthew Smith -
R Dicaire