20 Apr
2009
20 Apr
'09
4:49 p.m.
On Fri, Apr 17, 2009 at 02:22:30PM +0200, Raffaele wrote:
2009/4/17 Geoff King <gsking1(a)gmail.com>
Did you try to compile kernel 2.6.29.1 with patch-2.6.29.1-rt7?
As on every debian based distro it is very easy to compile a customized
kernel using kernel-package.
In order to get suspend to play nice with RT/Ingo kernel on my EEE, I had to turn off
Hyperthreading in the BIOS. Everything works fine now.
ACPI suspend/resume is really where the rubber meets the road in terms of hardware
support. If a kernel can handle suspending to RAM, pretty much it can handle anything.
By the way, suspending to disk ("hibernate") is much easier, and there's
built-in support for it in most kernels. That worked fine with my RT kernel, IIRC, it was
only the suspend-to-RAM that gave me fits until I turned off hyperthreading.
-ken
Regarding RT and ardour, you can run jack and ardour without RT.
Good point. Although I'm not using the -rt kernel anymore, my ubuntu jaunty
(and
intrepid before it) system works very well for audio stuff. I easily run
ardour
and jack and others and they are very stable. I found that I did not need
the
super low latencies (<5ms) from a -rt kernel to do the recording and
playback
that I was doing.
Last time I had a really good -rt kernel was around Gutsy. I did a lot of
tweaking for that also, but it did work very well with the workstation.
Also FWIW I was never impressed with WindowsXP's latency - Stopped using
that
about 2.5 years ago and never could get the latency down low enough for
live
playing using a software synth. So one should not just assume that Windows
will
give you the super low latencies of a -rt kernel.
The best low latency I've ever gotten from my current desktop was using the
64Studio distro a few years ago. But I've never tried the Fedora, Suse,
Mandriva versions so can't comment on these.
Hope this helps someone.
Geoff