On Sat, 2010-10-02 at 16:36 +0200, Ralf Mardorf wrote:
> On Sat, 2010-10-02 at 15:09 +0100, Folderol wrote:
> > On Sat, 02 Oct 2010 16:02:38 +0200
> > Ralf Mardorf <[email protected]> wrote:
> > <snip>
> > > You still might prefer Rosegarden, but note that usage of hr
> > > timer will freeze Rosegarden, resp. the complete Linux.
> > 
> > What do you mean by 'high resolution', and which version of Rosegarden?
> > 
> > I have *never* had a freeze due to timer issues.
> 
> sudo chgrp audio /dev/hpet
> sudo sysctl -w dev.hpet.max-user-freq=64
> sudo modprobe snd-hrtimer
> 
> I guess 'sudo sysctl -w dev.hpet.max-user-freq=64' isn't needed, but I
> got different information about this.
> 
> The kernel has to be build to support hr timer.
> 
> This might not be the case for a default 3.0 beta
> 
> cat /media/studio3.0/boot/config-2.6.29-1-multimedia-amd64 | grep
> CONFIG_SND_HRTIMER
> # CONFIG_SND_HRTIMER is not set
> 
> but it is for a default 3.3 alpha
> 
> cat /media/studio3.3/boot/config-2.6.31-2-multimedia-amd64 | grep
> CONFIG_SND_HRTIMER
> CONFIG_SND_HRTIMER=m
> 
> You might test it with a current version of Rosegarden.
> 
> - Ralf

PS: And don't forget to change the ALSA sequencer timer to hr timer
(HPET).


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