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troubleshooting [2019/09/01 20:59]
be.ing [Broadcasting or recording signal is silent]
troubleshooting [2019/11/12 18:54] (current)
be.ing [Bluetooth audio is delayed]
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 ==== GNU/Linux ==== ==== GNU/Linux ====
 If you are starting Mixxx from a command line on GNU/Linux, you probably need to suspend or disable PulseAudio. On most GNU/Linux distributions today, the PulseAudio sound server is automatically started upon logging in. PulseAudio is convenient for most desktop audio use, but it is not good for audio use that requires low latency like Mixxx. The PulseAudio daemon occupies the ALSA device while it is running. To temporarily disable PulseAudio while Mixxx is running, start it with ''​pasuspender mixxx''​. The .desktop launcher icon for Mixxx does this automatically. To run Mixxx with [[command line options]], such as ''​%%--%%mididebug'',​ put ''​%%--%%''​ between ''​pasuspender''​ and the rest of the command. For example, run ''​pasuspender %%--%% mixxx %%--%%mididebug''​ If you are starting Mixxx from a command line on GNU/Linux, you probably need to suspend or disable PulseAudio. On most GNU/Linux distributions today, the PulseAudio sound server is automatically started upon logging in. PulseAudio is convenient for most desktop audio use, but it is not good for audio use that requires low latency like Mixxx. The PulseAudio daemon occupies the ALSA device while it is running. To temporarily disable PulseAudio while Mixxx is running, start it with ''​pasuspender mixxx''​. The .desktop launcher icon for Mixxx does this automatically. To run Mixxx with [[command line options]], such as ''​%%--%%mididebug'',​ put ''​%%--%%''​ between ''​pasuspender''​ and the rest of the command. For example, run ''​pasuspender %%--%% mixxx %%--%%mididebug''​
 +
 +===== Bluetooth audio is delayed =====
 +Bluetooth audio always has a high latency and is not recommended for DJing. Bluetooth audio also uses lossy compression which reduces the audio quality. Use wired connections instead.
  
 ===== What should I do to get Mixxx to run the best it can on my computer? ===== ===== What should I do to get Mixxx to run the best it can on my computer? =====
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 Then start Mixxx again and test to see if your problem still exists. (You can rename or copy the directory back to restore your settings when you're done testing.) Then start Mixxx again and test to see if your problem still exists. (You can rename or copy the directory back to restore your settings when you're done testing.)
  
 +===== Mixxx on Wayland =====
 +
 +Some Linux distributions like [[https://​fedoraproject.org/​wiki/​Changes/​Qt_Wayland_By_Default_On_Gnome|Fedora 31]] switched to using [[https://​wiki.qt.io/​QtWayland|QtWayland]] as the default //platform plugin// for Qt applications in a //Wayland// desktop environment. This [[https://​bugs.launchpad.net/​mixxx/​+bug/​1850729|does not work as expected]] for Mixxx. There are two options to enforce using the X11 platform plugin ''​xcb''​ instead of ''​wayland'':​
 +
 +  * Set the environment variable ''​QT_QPA_PLATFORM=xcb''​
 +  * Start Mixxx with the command-line argument ''​-platform xcb''​
 +
 +The desktop launchers in the source repository already include this fix.
 ===== Troubleshooting other issues (Finding the mixxx.log file) ===== ===== Troubleshooting other issues (Finding the mixxx.log file) =====
 Refer to [[Finding the mixxx.log file]] Refer to [[Finding the mixxx.log file]]
troubleshooting.1567385982.txt.gz ยท Last modified: 2019/09/01 20:59 by be.ing