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Welcome to the Slackware Documentation Project

This is an old revision of the document!

Tips and Hints


  • We recommend running Studioware on a stock vanilla Slackware Installation.


  • MATE-1.6.2 build script replaces the following Studioware packages on 14.1:
    • atkmm-2.22.7-i486-1_msb > atkmm-2.22.4-i686-2se.txz [libraries]
    • cairomm-1.10.0-i486-1_msb > cairomm-1.9.8-i686-2se.txz [libraries]
    • glibmm-2.36.2-i486-1_msb > glibmm-2.32.1-i686-1se.txz [libraries]
    • gtkmm-2.24.4-i486-1_msb > gtkmm-2.24.0-i686-2se.txz [libraries]
    • gtksourceview-2.10.5-i486-1_msb > gtksourceview-3.7.2-i686-1se.txz [libraries]
    • mm-common-0.9.6-noarch-1_msb > mm-common-0.9.5-i686-2se.txz [libraries]
    • pangomm-2.34.0-i486-1_msb > pangomm-2.28.1-i686-2se.txz [libraries]
    • libsigc++-2.2.11-i486-1_msb > libsigc++-2.2.10-i686-1se.txz [development]
Please be sure to use the Studioware packages instead. FYI: Mate 1.6.2 seems to run fine with the Studioware-14.1 packages listed above.

Extra Options for sepkg/studiopkg/multilib

  • /etc/sepkg/sepkg.conf can take any of the normal SlackBuild variables to change the default build locations etc.:
    • TMP=/home/tmp/se
    • OUTPUT=/home/tmp
  • In a multilib install set where you need to build/install 32bit packages, or in a 32bit chroot on a multilib host:
    • ARCH=i686 in /etc/sepkg/sepkg.conf
    • ARCH=“” in /etc/studiopkg/studiopkg.conf


  • Either jdk or openjdk is a buildtime requirement when using sepkg to build the audio or full queue. jdk can be found in the extra/ directory on any of the slackware mirrors, or alienBob has packages for openjdk here: http://www.slackware.com/~alien/slackbuilds/openjdk/

RT Scheduling and Locked Memory

  • Having problems with ulimit and locked memory?
    • Put the line 'ulimit -l unlimited' (or whichever value you need) in /sbin/initscript.sample and copy it to /etc/initscript. Do not remove the exec line!
    • Reboot required.
  • Having problems with applications (ardour3 for example) failing to start jack with realtime scheduling?
    • Add the line 'ulimit -r 65' to /etc/initscript as described above.
    • Reboot required.


  • Using the threadirqs kernel option (Please see http://wiki.linuxaudio.org/wiki/system_configuration#the_kernel)
    • This is only needed for kernels that are not tweaked for lowlatency performance.
    • Stock Slackware kernels can take advantage of adding 'append=“ threadirqs”' including the quotes to /etc/lilo.conf.
    • To check any kernel config run the following command: 'grep -e CONFIG_IRQ_FORCED_THREADING -e CONFIG_PREEMPT=y /boot/[your kernel config]'.
    • To check your current running kernel run this command: 'zgrep -e CONFIG_IRQ_FORCED_THREADING -e CONFIG_PREEMPT=y /proc/config.gz'.
    • Add the 'threadirqs' boot option by editing /etc/lilo.conf and adding 'append=“ threadirqs”' including the quotes.
    • Run Lilo 'lilo'.
    • Reboot required.


A carefully crafted ~/.asoundrc may be needed in some cases.


  • jack2 (netone | net) transport were disabled upstream mainly because they did not play well with the new latency-API. A handy thing to know since they are still in a drop down box in qjackctl.
    • qjackctl → Setup → Settings[Tab] → Driver[drop down box]
    • You will see (netone | net) as a choice. No need to bother. Disabled.


  • Originally written by mesa
  • Contributions by dive

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