[linux-audio-user] realtime not available

[Marc-Olivier Barre]

On 3/12/07, Atte André Jensen <atte.jensen at gmail.com> wrote:
> Hi
>
> I had realtime working just fine (debian/etch, 2.6.18-rt8), but now it
> doesn't. And i can't figure out why...
>
> When I start qjackctl I get this in messages:
>
> cannot use real-time scheduling (FIFO at priority 10) [for thread
> -1210070368, from thread -1210070368] (1: Operation not permitted)
>
> atte at ajstrup:~$ grep -v '#' /etc/security/limits.conf
> @audio - rtprio 99
> @audio - memlock 500000
> @audio - nice -10
>
> atte at ajstrup:~$ grep atte /etc/group
> dialout:x:20:atte,emil,britt
> cdrom:x:24:atte,emil,britt
> floppy:x:25:atte,emil,britt
> audio:x:29:atte,emil,britt
> video:x:44:atte,emil,britt
> plugdev:x:46:atte,emil,britt
> atte:x:1000:
>
> atte at ajstrup:~$ sudo apt-get install libpam0g
> Reading package lists... Done
> Building dependency tree... Done
> libpam0g is already the newest version.
> 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Hi,

Hehehe, I had the same one this week-end. What happened for me is that
I used to run jackd only after login in with gdm. this week end I
tried launching it by login on a console (thus with the "login"
program) and I couldn't get realtime to work (with the same message).

check your configuration in /etc/pam.d : gdm, login and kdm should
include a line with something like :
session required /lib/security/pam_limits.so

Before this week, only /etc/pam.d/gdm had this line on my setup.

One last piece of advice : when modifying /etc/pam.d/login, be sure to
leave one console open, while testing your ability to login on
another. if you make a Big Mistake (TM) and logout, you won't be able
to login again (via login only of course, gdm/kdm/xdm should work).

Cheer,

__________________
Marc-Olivier Barre,
Markinoko.