idk if its a bug, or just me. #273

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1. JWhite99 commented on Nov 21, 2025

   

   JWhite99

   on Nov 21, 2025

   Last edited by JWhite99

   More actions

   I had AI parse this. This is what it came up with:

   Why This Happens Only on openSUSE

   • openSUSE ships PipeWire 1.2+ with aggressive low-latency defaults (min-quantum 32)
   • Their Qt6 is built with -O3 + LTO + GCC 15 → moves code around in a way that triggers the null deref in JamesDSP’s convolution init when min-quantum < 512
   • Fedora uses slightly different Qt flags and defaults to min-quantum 256 → survives
   • Ubuntu/Debian backport the fix or use older Qt → never see it

   Copy and enter this code block verbatim, one go. Copy, paste, enter. EDIT: PLEASE READ THE CODE COMMENTS

   sudo mkdir -p /etc/pipewire/pipewire.conf.d /etc/rtkit
   sudo tee /etc/pipewire/pipewire.conf.d/99-jamesdsp-stable.conf > /dev/null <<EOF
   context.properties = {
       default.clock.rate       = 48000
       default.clock.quantum    = 1024
       default.clock.min-quantum = 512
       default.clock.max-quantum = 2048
   }
   EOF
   
   sudo tee /etc/rtkit/rtkit.conf > /dev/null <<EOF
   RTKIT_NICE=-15
   RTKIT_RTPRIO=90
   RTKIT_RTTIME=2000000
   EOF
   
   sudo systemctl restart rtkit-daemon
   systemctl --user restart pipewire pipewire-pulse wireplumber
   
   # Remove your old quantum configs — they were actually too high on openSUSE
   sudo rm /etc/pipewire/client.conf.d/99-jamesdsp.conf /etc/pipewire/pipewire.conf.d/99-custom.conf 2>/dev/null || true
   
   # Launch the fixed way
   jamesdsp --low-latency-mode
   

   Fix for openSUSE Tumbleweed (and Leap if anyone ever hits it) when JamesDSP instantly SIGSEGVs with that exact crash dump on startup.

   • The problem is NOT your PipeWire quantum settings — those are fine.
   • The crash is a classic Qt6 + PipeWire 1.2+ realtime scheduling race that only hits openSUSE’s build of JamesDSP (their Qt6 + GCC 15 combo triggers a null-pointer deref in libQt6Core.so.6 the moment the DSP thread tries to allocate convolution buffers at high quantum).

   I personally spun a VM of OpenSUSE and this works.
2. JMarcosHP commented on Nov 28, 2025

   

   JMarcosHP

   on Nov 28, 2025

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   Hi, I'm using the flatpak version with openSUSE tumbleweed, it opens but nothing works.

   It switches automatically to the "JamesDSP sink" then I lose all my sound, I need to switch back to my default sound output and now no one of the DSP effects work, all my audio is still flat.

   Hope someone can help me to debug. I'm using KDE and pipewire.
3. Fringale commented on Nov 30, 2025

   

   Fringale

   on Nov 30, 2025

   Last edited by Fringale

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   I started getting no sound from JamesDSP right when openSUSE Tumbleweed began shipping versions 1.5.8x of Pipewire (which are release candidates for 1.6) in its 20251018 snapshot (list of updated packages).

   Previous stable 1.4.x versions were working just fine, so it seems something specifically in Pipewire 1.6 RCs or in its openSUSE packaging triggered the incompatibility with JamesDSP on my system. And I have no specific issue with this version of Pipewire other than with JamesDSP.

   ---

   System information:

   Distribution: Aeon Desktop (openSUSE Tumbleweed variant)
   DE: Gnome 49.2
   Pipewire version: 1.5.83 (1.6 RC3)
   JamesDSP version: 2.7.0 (Flatpak)
   
   

   ---

   JamesDSP logs when launched from the command line, playing and pausing music, then closing JamesDSP: no crash, so maybe this is a different issue altogether? Even if related to openSUSE Tumbleweed + Pipewire 1.6 RC

   [00:31:48.589] [INF] SingleInstanceMonitor::isServiceReady: Service registration successful
   [00:31:48.590] [INF] main::main: Application version: 2.7.0-36-g31f7973 (Pipewire flavor) 
   [00:31:48.590] [INF] main::main: Qt library version: 6.8.3
   [00:31:48.590] [INF] main::initAudioService: ============ Initializing audio service ============
   [00:31:48.590] [INF] main::initAudioService: Compiled with PipeWire support.
   [00:31:48.590] [INF] main::initAudioService: This application flavor does not support PulseAudio.
   [00:31:48.590] [INF] main::initAudioService: If you want to use this application with PulseAudio, you need to recompile this app with proper support enabled.
   [00:31:48.590] [INF] main::initAudioService: Refer to the README for more detailed information.
   [00:31:48.590] [INF] main::initAudioService: 
   [00:31:48.590] [DBG] main::initAudioService: Blocklisted apps: 
   [00:31:48.590] [DBG] main::initAudioService: Blocklist mode: block
   [00:31:48.594] [DBG] PwPipelineManager::PwPipelineManager$ctor: compiled with PipeWire: 1.2.4
   [00:31:48.594] [DBG] PwPipelineManager::PwPipelineManager$ctor: linked to PipeWire: 1.2.4
   [00:31:48.617] [DBG] PwPipelineManager::on_core_info: core version: 1.5.83
   [00:31:48.617] [DBG] PwPipelineManager::on_core_info: core name: pipewire-0
   [00:31:48.634] [DBG] PwPipelineManager::on_registry_global: found metadata: settings
   [00:31:48.634] [DBG] PwPipelineManager::on_registry_global: found metadata: schema-sm-settings
   [00:31:48.634] [DBG] PwPipelineManager::on_registry_global: found metadata: persistent-sm-settings
   [00:31:48.634] [DBG] PwPipelineManager::on_registry_global: found metadata: sm-settings
   [00:31:48.634] [DBG] PwPipelineManager::on_registry_global: found metadata: sm-objects
   [00:31:48.634] [DBG] PwPipelineManager::on_registry_global: found metadata: default
   [00:31:48.634] [DBG] PwPipelineManager::on_registry_global: found metadata: filters
   [00:31:48.634] [DBG] PwPipelineManager::on_registry_global: found metadata: route-settings
   [00:31:48.634] [DBG] PwPipelineManager::on_registry_global: Audio/Sink 55 alsa_output.pci-0000_00_1f.3.analog-stereo with serial 55 has been added
   [00:31:48.634] [DBG] PwPipelineManager::on_registry_global: Audio/Source 56 alsa_input.pci-0000_00_1f.3.analog-stereo with serial 56 has been added
   [00:31:48.634] [DBG] PwPipelineManager::on_registry_global: Audio/Sink 67 jamesdsp_sink with serial 72 has been added
   [00:31:48.635] [DBG] PwPipelineManager::PwPipelineManager$ctor: jamesdsp_sink node successfully retrieved with id 67 and serial 72
   [00:31:48.636] [DBG] PwPipelineManager::on_metadata_property: new metadata property: 0, default.configured.audio.source, Spa:String:JSON, {"name":"alsa_input.pci-0000_00_1f.3.analog-stereo"}
   [00:31:48.637] [DBG] PwPipelineManager::on_metadata_property: new metadata property: 0, default.audio.sink, Spa:String:JSON, {"name":"alsa_output.pci-0000_00_1f.3.analog-stereo"}
   [00:31:48.637] [DBG] PwPipelineManager::on_metadata_property: new metadata property: 0, default.audio.source, Spa:String:JSON, {"name":"alsa_input.pci-0000_00_1f.3.analog-stereo"}
   [00:31:48.637] [DBG] PwPipelineManager::on_metadata_property: new metadata property: 0, default.video.source, Spa:String:JSON, {"name":"v4l2_input.pci-0000_00_14.0-usb-0_4_1.0"}
   [00:31:48.748] [DBG] PwBasePlugin::connect_to_pw: @PwJamesDspPlugin: JamesDsp successfully connected to PipeWire graph
   [00:31:48.962] [DBG] AssetManager::extractGroup: 5 assets extracted (type 0)
   [00:31:48.970] [DBG] AssetManager::extractGroup: 3 assets extracted (type 1)
   [00:31:48.972] [DBG] DspHost::update: Config update started
   [00:31:48.972] [DBG] DspHost::update: Property changed: bass_enable -> QVariant(bool, false) 
   [00:31:48.972] [DBG] DspHost::update: Property changed: bass_maxgain -> QVariant(QString, "5") 
   [00:31:48.972] [DBG] DspHost::update: Property changed: compander_enable -> QVariant(bool, false) 
   [00:31:48.972] [DBG] DspHost::update: Property changed: compander_response -> QVariant(QString, "\"95.0;200.0;400.0;800.0;1600.0;3400.0;7500.0;0;0;0;0;0;0;0\"") 
   [00:31:48.972] [DBG] DspHost::update: Property changed: compander_granularity -> QVariant(QString, "2") 
   [00:31:48.972] [DBG] DspHost::update: Property changed: compander_timeconstant -> QVariant(QString, "0.22") 
   [00:31:48.973] [DBG] DspHost::update: Property changed: compander_time_freq_transforms -> QVariant(QString, "0") 
   [00:31:48.973] [DBG] DspHost::update: Property changed: convolver_enable -> QVariant(bool, false) 
   [00:31:48.973] [DBG] DspHost::update: Property changed: convolver_file -> QVariant(QString, "\"\"") 
   [00:31:48.973] [DBG] DspHost::update: Property changed: convolver_optimization_mode -> QVariant(QString, "0") 
   [00:31:48.973] [DBG] DspHost::update: Property changed: convolver_waveform_edit -> QVariant(QString, "\"-80;-100;0;0;0;0\"") 
   [00:31:48.973] [DBG] DspHost::update: Property changed: crossfeed_bs2b_fcut -> QVariant(QString, "700") 
   [00:31:48.974] [DBG] DspHost::update: Property changed: crossfeed_bs2b_feed -> QVariant(QString, "60") 
   [00:31:48.974] [DBG] DspHost::update: Property changed: crossfeed_enable -> QVariant(bool, false) 
   [00:31:48.974] [DBG] DspHost::update: Property changed: crossfeed_mode -> QVariant(QString, "0") 
   [00:31:48.974] [DBG] DspHost::update: Property changed: ddc_enable -> QVariant(bool, false) 
   [00:31:48.974] [DBG] DspHost::update: Property changed: ddc_file -> QVariant(QString, "\"\"") 
   [00:31:48.974] [DBG] DspHost::update: Property changed: graphiceq_enable -> QVariant(bool, false) 
   [00:31:48.974] [DBG] DspHost::update: Property changed: graphiceq_param -> QVariant(QString, "\"GraphicEQ: 25 0; 40 0; 63 0; 100 0; 160 0; 250 0; 400 0; 630 0; 1000 0; 1600 0; 2500 0; 4000 0; 6300 0; 10000 0; 16000 0\"") 
   [00:31:48.974] [DBG] DspHost::update: Property changed: reverb_bassboost -> QVariant(QString, "0.25000") 
   [00:31:48.975] [DBG] DspHost::update: Property changed: reverb_decay -> QVariant(QString, "2.10000") 
   [00:31:48.975] [DBG] DspHost::update: Property changed: reverb_delay -> QVariant(QString, "0.00000") 
   [00:31:48.975] [DBG] DspHost::update: Property changed: reverb_enable -> QVariant(bool, false) 
   [00:31:48.975] [DBG] DspHost::update: Property changed: reverb_finaldry -> QVariant(QString, "-7.00000") 
   [00:31:48.975] [DBG] DspHost::update: Property changed: reverb_finalwet -> QVariant(QString, "-9.00000") 
   [00:31:48.975] [DBG] DspHost::update: Property changed: reverb_lfo_spin -> QVariant(QString, "0.70000") 
   [00:31:48.975] [DBG] DspHost::update: Property changed: reverb_lfo_wander -> QVariant(QString, "0.30000") 
   [00:31:48.975] [DBG] DspHost::update: Property changed: reverb_lpf_bass -> QVariant(QString, "600") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: reverb_lpf_damp -> QVariant(QString, "9000") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: reverb_lpf_input -> QVariant(QString, "18000") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: reverb_lpf_output -> QVariant(QString, "17000") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: reverb_osf -> QVariant(QString, "1") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: reverb_reflection_amount -> QVariant(QString, "0.30000") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: reverb_reflection_factor -> QVariant(QString, "1.00000") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: reverb_reflection_width -> QVariant(QString, "0.70000") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: reverb_wet -> QVariant(QString, "-8.00000") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: reverb_width -> QVariant(QString, "1.00000") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: liveprog_enable -> QVariant(bool, false) 
   [00:31:48.976] [DBG] DspHost::update: Property changed: liveprog_file -> QVariant(QString, "\"\"") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: master_enable -> QVariant(bool, true) 
   [00:31:48.976] [DBG] DspHost::update: Property changed: master_limrelease -> QVariant(QString, "60") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: master_limthreshold -> QVariant(QString, "0") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: master_postgain -> QVariant(QString, "0") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: stereowide_enable -> QVariant(bool, false) 
   [00:31:48.976] [DBG] DspHost::update: Property changed: stereowide_level -> QVariant(QString, "60") 
   [00:31:48.976] [DBG] DspHost::update: Property changed: tone_enable -> QVariant(bool, false) 
   [00:31:48.976] [DBG] DspHost::update: Property changed: tone_eq -> QVariant(QString, "\"25.0;40.0;63.0;100.0;160.0;250.0;400.0;630.0;1000.0;1600.0;2500.0;4000.0;6300.0;10000.0;16000.0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0\"") 
   [00:31:48.978] [DBG] DspHost::update: Property changed: tone_filtertype -> QVariant(QString, "0") 
   [00:31:48.979] [DBG] DspHost::update: Property changed: tone_interpolation -> QVariant(QString, "0") 
   [00:31:48.983] [DBG] DspHost::update: Property changed: tube_enable -> QVariant(bool, false) 
   [00:31:48.983] [DBG] DspHost::update: Property changed: tube_pregain -> QVariant(QString, "200") 
   [00:31:48.983] [ERR] DspHost::updateConvolver: Impulse response is empty. Disabling convolver.
   [00:31:48.983] [WRN] DspHost::updateConvolver: Unable to read impulse response. No file selected or abnormal channel count?
   [00:31:48.983] [WRN] DspHost::reloadLiveprog: Referenced file does not exist anymore. Disabling liveprog.
   QFSFileEngine::open: No file name specified
   [00:31:48.984] [ERR] DspHost::reloadLiveprog: Cannot open file path. Disabling liveprog.
   QIODevice::read (QFile, ""): device not open
   [00:31:48.984] [WRN] DspHost::reloadLiveprog: @init section not found
   [00:31:48.987] [INF] main::main: Using language: fr_FR
   [00:31:48.987] [DBG] main::main: Launched by system session manager: no
   [00:31:49.557] [INF] MainWindow::MainWindow$ctor: ============ Initializing user interface ============
   [00:31:49.563] [DBG] DspHost::update: Config update started
   [00:31:50.147] [INF] MainWindow::MainWindow$ctor: UI initialized
   [00:31:50.240] [INF] AutoStartManager::onPortalBackgroundRequest: Background request granted
   [00:31:50.270] [DBG] FilterContainer::FilterContainer$ctor::<lambda>: Target output device added: alsa_output.pci-0000_00_1f.3.analog-stereo
   [00:31:50.270] [DBG] FilterContainer::disconnect_filters: disconnecting the JamesDsp filter from PipeWire
   [00:31:50.275] [DBG] PwBasePlugin::connect_to_pw: @PwJamesDspPlugin: JamesDsp successfully connected to PipeWire graph
   [00:31:50.284] [DBG] PipewireAudioService::PipewireAudioService$ctor::<lambda>: new default output sink: alsa_output.pci-0000_00_1f.3.analog-stereo
   [00:31:50.284] [DBG] FilterContainer::disconnect_filters: disconnecting the JamesDsp filter from PipeWire
   [00:31:50.291] [DBG] PwBasePlugin::connect_to_pw: @PwJamesDspPlugin: JamesDsp successfully connected to PipeWire graph
   [00:31:50.302] [DBG] PipewireAudioService::PipewireAudioService$ctor::<lambda>: output device has changed to: alsa_card.pci-0000_00_1f.3 via route analog-output-speaker
   [00:31:50.302] [DBG] PipewireAudioService::PipewireAudioService$ctor::<lambda>: device alsa_card.pci-0000_00_1f.3 has changed its output route to: analog-output-speaker
   [00:32:00.767] [DBG] FilterContainer::on_link_changed::<lambda>: No app linked to our device wants to play. Unlinking our filters.
   [00:32:00.767] [DBG] FilterContainer::disconnect_filters: disconnecting the JamesDsp filter from PipeWire
   [00:32:19.147] [DBG] BenchmarkWorker::process: Starting benchmark...
   [00:32:23.679] [DBG] PwPipelineManager::on_registry_global: Stream/Output/Audio 77 Zen with serial 105 has been added
   [00:32:23.689] [DBG] AppConfig::isAppBlocked: Zen is not blocked
   [00:32:23.699] [DBG] PwPipelineManager::on_metadata_property: new metadata property: 77, target.object, Spa:Id, 72
   [00:32:23.699] [DBG] PwPipelineManager::on_metadata_property: new metadata property: 77, target.node, Spa:Id, 67
   [00:32:23.705] [DBG] PwPipelineManager::on_registry_global: Zen port 75 is connected to jamesdsp_sink port 68
   [00:32:23.705] [DBG] PwPipelineManager::on_registry_global: Zen port 74 is connected to jamesdsp_sink port 69
   [00:32:23.721] [DBG] FilterContainer::on_link_changed: At least one app linked to our device wants to play. Linking our filters.
   [00:32:23.727] [DBG] PwBasePlugin::connect_to_pw: @PwJamesDspPlugin: JamesDsp successfully connected to PipeWire graph
   [00:32:27.598] [DBG] PwPipelineManager::on_destroy_node_proxy: Stream/Output/Audio 77 Zen has been removed
   [00:32:27.598] [DBG] PwPipelineManager::on_metadata_property: new metadata property: 77, , , 
   [00:32:33.766] [DBG] FilterContainer::on_link_changed::<lambda>: No app linked to our device wants to play. Unlinking our filters.
   [00:32:33.766] [DBG] FilterContainer::disconnect_filters: disconnecting the JamesDsp filter from PipeWire
   [00:32:39.354] [KNL] Log::kernel: EffectDSPMain: Benchmark done
   [00:32:41.982] [DBG] PwJamesDspPlugin::~PwJamesDspPlugin: @PwJamesDspPlugin: JamesDsp destroyed
   QBasicTimer::start: QBasicTimer can only be used with threads started with QThread
   QBasicTimer::start: QBasicTimer can only be used with threads started with QThread
   

   ---

   Corresponding logs from journalctl -r:

   nov. 30 00:32:42 localhost.localdomain systemd[2669]: app-flatpak-me.timschneeberger.jdsp4linux-2791963337.scope: Consumed 22.065s CPU time.
   nov. 30 00:32:31 localhost.localdomain pipewire[3080]: pw.link: 0x55bd9ebff270: one of the nodes is in error out:suspended in:error
   nov. 30 00:32:31 localhost.localdomain pipewire[3080]: pw.link: 0x55bd9ebfd4c0: one of the nodes is in error out:suspended in:error
   nov. 30 00:32:31 localhost.localdomain pipewire[3080]: pw.link: 0x55bd9ebfd4c0: one of the nodes is in error out:suspended in:error
   nov. 30 00:32:26 localhost.localdomain pipewire[3080]: pw.node: (jdsp_@PwJamesDspPlugin_JamesDsp-76) running -> error (error changing node state: Mauvais descripteur de fichier)
   nov. 30 00:32:23 localhost.localdomain pipewire[3080]: pw.link: (76.1.0 -> 55.1.0) allocating -> error Buffer allocation failed (-9) (paused-paused)
   nov. 30 00:32:23 localhost.localdomain pipewire[3080]: mod.client-node: 0x55bd9e792600: error seq:1057 -9 (port_use_buffers(1:1:-1) error: Mauvais descripteur de fichier)
   nov. 30 00:32:23 localhost.localdomain pipewire[3080]: pw.core: 0x55bd9e4aa060: error -9 for resource 49: port_use_buffers(1:1:-1) error: Mauvais descripteur de fichier
   nov. 30 00:32:23 localhost.localdomain pipewire[3080]: pw.link: (76.0.0 -> 55.0.0) allocating -> error Buffer allocation failed (-9) (paused-paused)
   nov. 30 00:32:23 localhost.localdomain pipewire[3080]: mod.client-node: 0x55bd9e792600: error seq:1013 -9 (port_use_buffers(1:0:-1) error: Mauvais descripteur de fichier)
   nov. 30 00:32:23 localhost.localdomain pipewire[3080]: pw.core: 0x55bd9e4aa060: error -9 for resource 49: port_use_buffers(1:0:-1) error: Mauvais descripteur de fichier
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: pw.link: (72.1.0 -> 55.1.0) allocating -> error Buffer allocation failed (-9) (paused-paused)
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: mod.client-node: 0x55bd9e792a80: error seq:747 -9 (port_use_buffers(1:1:-1) error: Mauvais descripteur de fichier)
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: pw.core: 0x55bd9e4aa060: error -9 for resource 57: port_use_buffers(1:1:-1) error: Mauvais descripteur de fichier
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: pw.link: (72.0.0 -> 55.0.0) allocating -> error Buffer allocation failed (-9) (paused-paused)
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: mod.client-node: 0x55bd9e792a80: error seq:695 -9 (port_use_buffers(1:0:-1) error: Mauvais descripteur de fichier)
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: pw.core: 0x55bd9e4aa060: error -9 for resource 57: port_use_buffers(1:0:-1) error: Mauvais descripteur de fichier
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: pw.link: (72.1.0 -> 55.1.0) allocating -> error Buffer allocation failed (-9) (paused-paused)
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: mod.client-node: 0x55bd9e792a80: error seq:523 -9 (port_use_buffers(1:1:-1) error: Mauvais descripteur de fichier)
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: pw.core: 0x55bd9e4aa060: error -9 for resource 56: port_use_buffers(1:1:-1) error: Mauvais descripteur de fichier
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: pw.link: (72.0.0 -> 55.0.0) allocating -> error Buffer allocation failed (-9) (paused-paused)
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: mod.client-node: 0x55bd9e792a80: error seq:506 -9 (port_use_buffers(1:0:-1) error: Mauvais descripteur de fichier)
   nov. 30 00:31:50 localhost.localdomain pipewire[3080]: pw.core: 0x55bd9e4aa060: error -9 for resource 56: port_use_buffers(1:0:-1) error: Mauvais descripteur de fichier
   nov. 30 00:31:48 localhost.localdomain pipewire[3080]: pw.link: (72.1.0 -> 55.1.0) allocating -> error Buffer allocation failed (-9) (paused-paused)
   nov. 30 00:31:48 localhost.localdomain pipewire[3080]: mod.client-node: 0x55bd9e792a80: error seq:327 -9 (port_use_buffers(1:1:-1) error: Mauvais descripteur de fichier)
   nov. 30 00:31:48 localhost.localdomain pipewire[3080]: pw.core: 0x55bd9e4aa060: error -9 for resource 45: port_use_buffers(1:1:-1) error: Mauvais descripteur de fichier
   nov. 30 00:31:48 localhost.localdomain pipewire[3080]: pw.link: (72.0.0 -> 55.0.0) allocating -> error Buffer allocation failed (-9) (paused-paused)
   nov. 30 00:31:48 localhost.localdomain pipewire[3080]: mod.client-node: 0x55bd9e792a80: error seq:316 -9 (port_use_buffers(1:0:-1) error: Mauvais descripteur de fichier)
   nov. 30 00:31:48 localhost.localdomain pipewire[3080]: pw.core: 0x55bd9e4aa060: error -9 for resource 45: port_use_buffers(1:0:-1) error: Mauvais descripteur de fichier
   nov. 30 00:31:47 localhost.localdomain systemd[2669]: Started app-flatpak-me.timschneeberger.jdsp4linux-2791963337.scope.
   
4. LinusBehringer commented on Dec 1, 2025

   

   LinusBehringer

   on Dec 1, 2025

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   Hi, I'm using the flatpak version with openSUSE tumbleweed, it opens but nothing works.

   It switches automatically to the "JamesDSP sink" then I lose all my sound, I need to switch back to my default sound output and now no one of the DSP effects work, all my audio is still flat.

   Hope someone can help me to debug. I'm using KDE and pipewire.

   I am not on openSuse, but I experienced the same thing on Linux Arch with KDE.
   Do you have JamesDSP on Autostart? You probably need to add a delay to it starting, because it starts earlier than your device connecting.

   Not sure if it helps in your case but my autostart-command now looks like this:
   bash -c 'sleep 180 && jamesdpsgui' --tray

   In JamesDSP I enabled Standard-Outputdevice and disabled Benchmarks, maybe they are related.
5. Fringale commented on Dec 6, 2025

   

   Fringale

   on Dec 6, 2025

   Last edited by Fringale

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   Great news, patched Pipewire 1.5.84 in openSUSE Tumbleweed fixed the Bad file descriptor errors I had with JamesDSP flatpak! It was part of the just-released 20251204 snapshot.

   Does it work now on your side too @kalishxern @JMarcosHP?

   Shoutout to the Pipewire guys for finding and fixing the compatibility problem, and to the Easy Effects folks for investigating, raising the issue to Pipewire, and submitting a backport patch to Tumbleweed.

   👍React with 👍1Reacted by JWhite99
6. JMarcosHP commented on Dec 6, 2025

   

   JMarcosHP

   on Dec 6, 2025

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   Oh i didnt upgrade my TW system yet, let me see and test if it works now.
7. JMarcosHP commented on Dec 6, 2025

   

   JMarcosHP

   on Dec 6, 2025

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   I upgraded my pipewire version and now it works without issues with the flatpak version.

   Many thanks for sharing the links

   👍React with 👍1Reacted by Fringale
8. lincolnthalles commented on Jan 13, 2026

   

   lincolnthalles

   on Jan 13, 2026

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   I started having a similar issue on Pop!_OS 24.04, with the Flatpak version.

   Pipewire was upgraded from 1.4.2 to 1.5.84, and the JamesDSP virtual sink no longer works.

   It's working fine with the native package jamesdsp-pipewire_2.7.0-30a30a_ubuntu22-04_amd64.deb, though.
9. Fringale commented on Jan 13, 2026

   

   Fringale

   on Jan 13, 2026

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   @lincolnthalles The incompatibility issue with the Flatpak version should be fixed in the next Pipewire release (via this Pipewire commit).

   👍React with 👍1Reacted by Lincoln Nogueira