On Tuesday 07 February 2006 03:39, Lee Revell wrote: > On Mon, 2006-02-06 at 21:30 -0500, Lee Revell wrote: > > On Sat, 2006-02-04 at 15:49 -0500, Dana Olson wrote: > > > I hope you can get this into Breezy. There is a discussion on this > > > page as well, where I learned the steps from: > > > > It's looking good - Matt Zimmermann has instructed the Ubuntu developers > > to review and merge the patches. Great! Thanks for your efforts in promoting this! > Since it looks like this is happening the next question is, what do we > thing is a sane default config. > > IMHO it needs to be secure OOTB, but we don't want to make users > edit /etc/security/limits.conf, I propose that we > ship /etc/security/limits.conf with the "audio" group set up for > realtime access, but do not add the default user to this group at > install time. > > If Ubuntu already places the default user in group "audio", I think we > need to use another group "realtime". > > So all that's needed for JACK in realtime mode is "gpasswd -a joeuser > realtime". I'm fine with both. I recently installed Dapper, it did put me in the audio group. Btw, I wouldn't be much concerned to have rtprio set by default. Worst thing that can happen is the user hogging the CPU. Jackd has it's watchdog preventing a client from doing so, and Ubuntu kernels ship with CONFIG_MAGIC_SYSRQ=y, so SysRq-n is available as a last resort. If we don't want to make the user edit /etc/security/limits.conf, the limits themselves should be well discussed, too. I have rtprio 80, is just enough to run jackd (currently; it used to be 70). Would that be generally ok, or should it be more? memlock is more difficult. I have memlock 700000, but that's for my hardware and needs (I'm using BruteFIR with many and long filters, so I need lots of RAM, which I do have on that machine). What's a sensible default? I don't set nice. Is it needed for audio? > There might also be a good argument that we *do* want to allow realtime > access to the default user... Yes, let's see if someone brings one up. Wolfgang
