Control: tag -1 moreinfo On Sun, 2025-06-29 at 19:13 +0100, Jamie Forth wrote: [...] > There are no differences in default ALSA parameters running under 6.1 > or 6.12 kernels. > > $ cat /proc/asound/USB/pcm0c/sub0/sw_params You mean "hw_params", right? > access: MMAP_INTERLEAVED > format: S32_LE > subformat: STD > channels: 10 > rate: 48000 (48000/1) > period_size: 128 > buffer_size: 32768 > > $ cat /proc/asound/USB/pcm0c/sub0/sw_params > > tstamp_mode: ENABLE > period_step: 1 > avail_min: 128 > start_threshold: 9223372036854775807 > stop_threshold: 32768 > silence_threshold: 0 > silence_size: 0 > boundary: 4611686018427387904 But these are for the capture side (pcm0c), whereas I thought the problem was with playback (pcm0p)? [...] > The additional IRQs listed under the 6.12 kernel don't appear to > exist, only irq/155-xhci_hcd in this case. They exist and have been allocated but are not used. The XHCI PCI driver can currently allocate multiple IRQs but only installs an IRQ handler for the first one. This is a bit strange but should not cause a problem because it also doesn't configure the hardware to use the additional IRQs. [...] > ** Loaded modules: [...] > nvidia_drm(POE) > nvidia_modeset(POE) > nvidia(POE) [...] I see some reports that the Nvidia proprietary drivers can cause latency spikes that affect audio. Can you please test whether this problem still occurs when using the nouveau driver instead? Ben. -- Ben Hutchings 73.46% of all statistics are made up.
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