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intuited
Asked: 2020-04-22 05:45:34 +0800 CST

QSampler: "Could not start server. Sorry."

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Running Bionic Beaver (18.04) release of Lubuntu. I've installed qsampler, but when I start it up it displays

Server is starting...
linuxsampler
Could not start server.  Sorry.
Server was stopped with exit status 0.

find / -mount -iname '*linuxsampler*' doesn't yield any results.

aptitude search ~dlinuxsampler doesn't show any packages which appear to install linuxsampler.

Do I need to install another package in order to use qsampler? If so, where do I get it?

lubuntu midi 18.04

1 Answers

  1. Best Answer

    linuxsampler is not packaged for Ubuntu. This appears to be because of the exception in its GPL licensing "that USAGE of the source code, libraries and applications FOR COMMERCIAL HARDWARE OR SOFTWARE PRODUCTS IS NOT ALLOWED without prior written permission by the LinuxSampler authors." An ancient issue from 2008 appears to explain the situation, though I did not read it in sufficient detail to confirm that the situation as described is still the same.

    I ended up installing it using the KX Studio PPA: I followed their instructions*, then performed the usual steps after installing a PPA:

    sudo apt update;
sudo apt upgrade;

    Then I installed the sampler package with sudo apt install linuxsampler. I installed the other linuxsampler-* packages as well, although they shouldn't be needed for basic use of qsampler.

    After installing those packages, qsampler was able to start linuxsampler without complaint. After downloading and decompressing the Maestro Grand Concert instrument and doing what seemed like a rather unnecessary amount of configuration, I have an amazing piano sound that can run with considerably lower latency on my ancient laptop than the inferior sound I was getting out of qsynth.

    *: I've refrained from including those instructions here in accordance with their request to "not copy these instructions to your own website, wiki, etc."

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