Glitchy sound instead of instruments (after some time)

[molgrum]

After having LMMS run a moment, playing the music, it always goes to a crackling glitchy sound. I have found a wrokaround and that is to kill/restart pulseaudio and restart LMMS but this only fixes it for a moment.

[Israel Dahl (israeldahl)]

Hi,
Thanks for your bug report, however it is unclear what version of Ubuntu you are running,
or what version of LMMS you are running.

To find out what version of lmms you are running please type this into a terminal:

apt-cache policy lmms

and post the information you get

[molgrum (molgrum)]

Hi I'm running Ubuntu 14.04.

$ apt-cache policy lmms
lmms:
  Installerad: 1.0.0+bzr2569-0ubuntu1
  Kandidat: 1.0.0+bzr2569-0ubuntu1
  Versionstabell:
 *** 1.0.0+bzr2569-0ubuntu1 0
        500 http://dk.archive.ubuntu.com/ubuntu/ trusty/universe i386 Packages
        100 /var/lib/dpkg/status

[Israel Dahl (israeldahl)]

I am sorry about that,
there are some known bugs in that version, in fact I have been trying to get a fixed version SRU'd for trusty.
SRU = Stable Release Upgrade.
In the meantime, I have a PPA for the branch I want to SRU, if you could test it to confirm your bug is fixed in that branch I would be very glad. I could also link this bug report in with my SRU request as well.

https://launchpad.net/~israeldahl/+archive/ubuntu/lmms-1.0.0-stable

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Alice Nguyen (ttpcodes)]

Can confirm this bug still exists (in the Ubuntu Universe repository package at least). I am running Ubuntu 15.04 Vivid and using LMMS version 1.0.3-5. This glitch makes it impossible to actually do any editing or use the program for that matter.

[Israel Dahl (israeldahl)]

Hi,
I just rebuilt a newer version of LMMS

I built it in an older PPA (ignore the numbering and release)
The package is actually:
1.0.3-src-0ubuntu1~ubuntu15.04.1

sudo add-apt-repository ppa:israeldahl/lmms1.0.3utopic
sudo apt-get update && sudo apt-get install lmms

please test this version to see that the bug has been fixed upstream.
thank you!

[Israel Dahl (israeldahl)]

Is this bug still present in recent versions?

[Oskar Wallgren (oskar-wallgren13)]

Yes. We've managed to catch some of the issues but it's still an issue and this should stay open after lmms-1.2.0 is released. We've switched over to SDL as default backend and it's behaving better on this issue. With SDL I only see this when I intentionally press the system with maximum strain on CPU/RAM.