[LAD] Fwd: Re: Muse - Was: OT: Bitwig beta for Linux reviewed

Tim E. Real termtech at rogers.com
Sun Mar 10 09:26:31 UTC 2013

On March 8, 2013 11:47:52 PM Ralf Mardorf wrote:
> On Fri, 2013-03-08 at 16:37 -0500, Tim E. Real wrote:
> > On March 8, 2013 09:31:50 PM Ralf Mardorf wrote:
> > > IIRC Muse can mute individual clips, but Muse never was
> > > able to run on my machine. I tested it for different distros, in
> > > different years.
> > 
> > Howdy, Ralf.
> > Can you give us an idea of why this might be?
> > Any clues at all, like choice of kernels, tweaks, RTIRQs etc.
> > Can you briefly describe the hardware involved?
> > I imagine you must run a pretty tight setup there.
> > 
> > Your experience with MusE is important to us.
> > We'd like to try to correct whatever the problem is, with your help.
> I'm short in time this month, I can spend some time at the end of the
> month and install Muse again.
> The PC is an ASUS M2A-VM HDMI with an on-board ATI Radeon X 1250-based
> graphics, in the past I sometimes replaced it by a PCIe NVIDIA GeForce
> 7200 GS.
> In the past the PC first had one, later two TerraTec EWX 24/96 ICE1712
> PCI cards, for more then a year I'm using it with those two cards for
> MIDI and a RME HDSPe AIO for MIDI and audio.
> The CPU always was and still is an AMD Athlon 64-bit dual-core BE-2350
> 2.1 GHz. I started with 2 GiB RAM, but early extended to 4 GiB.
> FWIW the PCIe RME card not only is bad supported, on my machine I still
> get xruns with very high latency, when using the RME card, but Muse
> already had issues on my machine, when I used the TerraTec cards only,
> that can be used without xruns at a passable latency.
> I'm usually using self-build kernel-rt in the past 2.6.x and today 3.x.
> Nothing does share the IRQ with a sound card.
> I also tried to tune the machine by:
>         ### Bluetooth
>         service bluetooth stop
>         ### TerraTec EWX 24/96
>         modprobe -r snd_ice1712
>         ### Others
>         modprobe -r firewire-ohci
>         modprobe -r firewire_core
>         service cups stop
>         modprobe -r ppdev # parallel port
>         modprobe -r lp    # printer
>         ### Unbinding devices
>         echo -n "0000:00:13.2" > /sys/bus/pci/drivers/ohci_hcd/unbind
>         echo -n "0000:00:13.4" > /sys/bus/pci/drivers/ohci_hcd/unbind
> This doesn't improve the situation. However, xruns were not the issues,
> IIRC Muse usually freeze and is completely unusable here. Architecture
> of the Linux usually is 64-bit, I don't know if I ever tried Muse on a
> 32-bit install. I'm using Jack2 only, first regarding to the alsarawmidi
> switch, to get rid of MIDI hardware jitter and because Jack1 never
> worked on this Computer and also not on my first PC, an ASRock K7VT2
> with an 800 MHz single core, 32-bit Athlon. All versions of Jack1 I
> tested, not only the version that was known to do this, disconnected
> clients.
> Onboard audio always is disabled, Northbridge AMD 690G, Southbridge ATI
> SB600, 1 * PCI Express x16, 1 * PCI Express x1, 2 * PCI.
> At the moment I'm booted to Arch Linux, the only installed audio
> software at the moment are Jack2 and Simple Sysexxer and I've got no
> time to test Muse right now. >= 22. March I might have some time to test
> Muse. If I should forget to test Muse, at the end of this month or
> during next month please ask me again.
> Regards,
> Ralf

OK. Great! Thanks for the info. I'll wait a while.

I also run MusE on an AMD 64, an Athlon. It is single-core, a bit old now.
With a Delta1010 ice1712 card.
I blacklisted my on-board audio because even when I disable it in BIOS, the 
 OS still somehow finds it and pollutes the daily ordering of device listings.

There is a MusE command-line debug switch -D which gives us information. 
Sometimes it can be a plugin or soft synth misbehaving with us. 
There are switches to turn off loading of the plugins and soft synths.
Hopefully these will help narrow it down.
I fixed a freeze or two recently, kind of obscure though.

Current release is 2.1.1, next is due out soon, plenty of great new fixes
 and features, and new online docs. Would be cool if you could run a 
 recent version but it might require building source but it's not too hard. 
We have removed the Doxygen requirement for example :)

As a midi editor she's fairly advanced, per-drum or note midi controllers 
 like poly-aftertouch for example.

But, gulp, we're about to face some seeerious competition on two fronts.
Oh, apologies for breaking in on this Bitwig thread, carry on.
And congratulations to the Ardour team expecting the new baby! 
'Gonna hand out some cigars?


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