On Sat, May 21, 2011 at 11:28 AM, Ralf Mardorf <ralf.mard...@alice-dsl.net>wrote:
> Hi all :) > > I'm new to the Ubuntu Studio devel list and I'm not sure if it's the right > place for me, so please blame Mike, if I should annoy you ;p. > > I was upset when I read that you'll switch the DE, until the community give > a fair warning, that GNOME2 won't be supported any more. > > Hurray, I already needed to switch from KDE3 to GNOME2 when there was the > switch to KDE4 and now I've got to switch again, I believe unsighted that > GNOME3 isn't a good choice and I do agree that there are two DEs that in > case of emergency could replace GNOME2. XFCE and LXDE. Fluxbox and e17 can't > do, dunno which DEs you were thinking of and I don't know the current XFCE, > but I guess you did a step in the right direction with XFCE. > > Anyway, Mike is right that now is a good time for some "wishes". > > First of all, since 2003/2004, when I switched from the Atari ST TOS to > Suse Linux 9.0, the wheel of my mouse is working, until I switched from > Ubuntu Karmic (resp. 64 Studio) to Ubuntu Studio Lucid. For my current > Edubuntu Maverick, the mouse wheel seldom is working. I'm not only thinking > of my mouse-wheel issue, but about the mouse movements in general. Over the > weekend I'm sorting out old Linux installs and data on my HDDs, while doing > this I run 64 Studio 3.3 with LXDE. Using the mouse there is like slow > motion. For home recording and I suspect less professional audio studios are > using Ubuntu Studio, often one person needs to do everything her/him self, > the instrument in one hand, the mouse in the other hand, hence using the > mouse should be "fast", resp. small movements should enable to cross the > whole screen, while it also should be possible to select -1, -2 and -3 dB > for a fader and not only -1 and -3 dB ;), this is able by using GNOME2. > > Did you notice something? > > I'm talking about music only. IMO the usage of video, paint and animation > apps doesn't really need a special distro, ok, for e.g. Cinelerra there > might be the need to have a special repository, regarding to codec issues > and the GNU etc., but special tweaks are needed for real-time audio. > > For GNOME2 sessions on my Maverick install, the default CPU frequency > scaling setting of my customized configured kernel 2.6.33.9-rt31 is ignored. > It's set down to "ondemand". > > Today I installed Ardour3, hence I'm knowingly just used the computer set > to "ondemand". The installer warned me: > > "!!! WARNING !!! - Your system seems to use frequency scaling. > This can have a serious impact on audio latency. You have two choices: > (1) turn it off, e.g. by chosing the 'performance' governor. > (2) Use the HPET clocksource by passing "-c h" to JACK > (this second option only works on relatively recent computers)" > > And even on relatively recent computers there's a limit for the apps that > can use HPET, I'm only enabling it for ALSA seq and not by/for Jack. > > Perhaps you should connect a power meter to your computer and compare the > load. The difference between "performance" and "ondemand" will be around 1W > for modern multi-core machines, which isn't much. If you're using a laptop > think about the load needed by the display ;). > > Envy24 cards should work OOTB as they did, before PolypAudio grabbed > everything and by the way, current version of Envy24 control is version 1 > "mudita" since a long time ago. > Note that just editing /usr/share/alsa/cards didn't work for Maverick any > more here! I need to pseudo-disable PA, without really knowing what I'm > doing ;). > I'll order a better card next week, but Envy24 cards are wide spread and, > because we're talking about future releases of Ubuntu Studio, using Jack2 > from svn with > > sudo chgrp audio /dev/hpet > sudo chmod g+rw /dev/hpet > sudo modprobe snd-hrtimer > > and > > jackd --sync -Xalsarawmidi -dalsa [snip] > > + > > a2jmidi_bridge > > + > > the current kernel-rt enabled using hw MIDI out without audible jitter. I > already got best results with older versions of Jackd2, when running latency > tests, but the jitter anyway was audible for me, I couldn't use external > MIDI equipment. > > The kernel can set a default for the frequency scaling gov and the DE, WM, > frame based environment, install for text mode only, in other words, any > kind of userinterface should use this as the default. > > Set "ondemand" as default for the PREEMPT only kernels, I'll set > "performance" for my kernel-rt and if there should be a kernel-rt by the > repositories too, it also should be set to "performance". > > I add > > $ cat /etc/rcS.d/S69switch_xorg.conf > #! /bin/sh > # /etc/rcS.d/Switch_xorg_conf > > rm /etc/X11/xorg.conf > case $(uname -r) in > *rt*) > cp /etc/X11/xorg.conf.nv /etc/X11/xorg.conf > ;; > *) > cp /etc/X11/xorg.conf.nvidia /etc/X11/xorg.conf > ;; > esac > > to my current install, to solve that annoying proprietary driver issue, > regarding to the RT patched kernels. > > You might add a similar script, while just "*rt*)" and "*)" is a vague > sort, that might not work on all machines. I know that the main issue with > this idea is, that usually there isn't a xorg.conf any more. > > Qtractor needs more often upgrades for it's package (but not without > consulting testers, before changing a version) and perhaps other sequencers, > I'm not using need might need more often upgrades of the packages too and of > cause, Ardour3 should be included ASAP. > > Basic apps, such as e.g. Fluidsynth IMO don't need upgrades that often, but > because they are basic apps they have to be stable. The default > Fluidsynth-DSSI is (or was?) hardcore broken for Maverick, just producing > noise. > > What's about LinuxDSP FX? > > VSTs? And yes, something similar to a chroot or in general 32-bit libs for > a 64-bit install? Think about Animata, LightScribe, VSTs etc.. > > I can try to help a little bit, but I'm not a coder and I don't want to > spend too much time with testing etc. any more. > > Perhaps more, but just 2 Cents. > > Cheers! > > Ralf > > -- > Ubuntu-Studio-devel mailing list > Ubuntu-Studio-devel@lists.ubuntu.com > Modify settings or unsubscribe at: > https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel > Ralf, Thanks for the input! There is a lot there to consider, however, consider we shall. I will warn you clearly now, I'm not sure we will be able to do everything *at this time*. Some items may be prohibited by Canonical/Ubuntu like including VST support in the binary. Others may not happen immediately simply because of limited resources. Thank you again, ScottL
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