25 Mar
2007
25 Mar
'07
6:21 p.m.
On 3/25/07, Brad Fuller <brad(a)sonaural.com> wrote:
Brad Fuller wrote:
Good. Did you check what the /var/log/auth.log file says after you've
logged in ? there could be some hints there.
Marc-Olivier Barre wrote:
well... I just went ahead and added the line:
session required pam_limits.so
in /etc/pam.d/xdm, login and gdm
On 3/25/07, Brad Fuller <brad(a)sonaural.com>
wrote:
CRAP! I simply didn't see that! Thanks for the reply and thanks for
pointing this out!
I'm following the directions on the wiki for
the RT kernel at:
http://proaudio.tuxfamily.org/wiki/index.php?title=Realtime_%28RT%29_Kernel
and I'm at the point of modprobe'ing the realtime module in the
instructions which say:
-----------------
load realtime-lsm
# modprobe commoncap
# modprobe realtime gid=18
-----------------
But, I receive this error:
FATAL: Error inserting realtime
(/lib/modules/2.6.16-rt29-tglx4/extra/realtime.ko): Invalid module
format--
when modprobe'ing the "realtime" module.
Why is this? The kernel and the module were compiled with the same
tools.
Hi Brad,
You may have not seen it but on the wiki you pointed to, in the part
called "Activate and test RT" the realtime-lsm module is marked as
deprecated. if you go a little further in the document you
will find a
section called "RLIMITS" (right after the realtime-lsm one).
The currently recommended method to get realtime to work is to use the
rlimits method with PAM, which you should normally have on your
system. It will make things a lot easier for you.
The tutorial might be taking some shortcuts (depending on your
configuration). If after following the tutorial's info it still
doesn't work, try the following :
- check that your user is part of the audio group
- from a terminal, type in the following command :
grep "pam_limits.so" /etc/pam.d/{gdm,kdm,xdm,login} 2> /dev/null
Aha,
well. I have it none.
How would this get added? Which didn't seem to make a difference to my other
problem.
Note that booting produces no errors. My audio device driver loads fine
and initializes. Everything seems fine, except
1. Audio plays back very slowly. Video files play at various speeds
(fast then slow then fast, etc.)
That video thing is weird, though I'm not sure it's realtime related
2. Running qjackctl I receive the warning that
real-time scheduling is
not permed and then I continuously receive delay errors:
Try running ulimit -l in a terminal to see if you get the same value
you've set in the /etc/security/limits.conf ( "-l" gives the memlock
parameter). If not, then the limits.conf file is not being taken into
account at login time.
Any help on: pointers on getting real-time to work AND
for applications to set the clock
of the audio device is much appreciated!
Before starting jack, you need to set the sample rate to what you
want. if you can do it with alsamixer, it means that it can be saved
and reloaded at boot time using alsactl. I supposed there is an init
script in gentoo that does it automatically at boot time (have a look
in /etc/init.d or /etc/rc.d/init.d, there should be a script called
"alsa" something)
__________________
Marc-Olivier Barre,
Markinoko.