Jeremy Jongepier <jeremy@xxxxxxxxxxxxxx> writes: > Hello, > > On 15-01-2024 17:28, Jeremy Jongepier wrote: >> Talking about USB, going lower than 64 frames/period floods dmesg >> with the following messages: >> [ 1223.745771] retire_capture_urb: 2362 callbacks suppressed >> [ 1223.759483] xhci_hcd 0000:66:00.4: WARN Event TRB for slot 1 ep 5 >> with no TDs queued? Stupid question: have you tried 48 frames/period already? That fits better with the timing interrupts. For particular cards, even 24 frames may work while 64 frames gives trouble. >> Is there anything I could do about that or is this the very limit >> this system can handle? No problem anyway since I barely run lower >> than 128 frames/period normally and even at 64 this system is pretty >> stable with bigger projects. But I just like to know how low this >> notebook can go. It's an AMD Ryzen 7 system so USB controllers are >> from AMD (USB ID's are 1d6b:0002/0003) > > I've resolved this by passing implicit_fb=1 to the snd-usb-audio > driver. I can now go as low as 1ms systemic latency without choppy > audio or the logs filling up. What does it do? -- David Kastrup _______________________________________________ Linux-audio-user mailing list -- linux-audio-user@xxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to linux-audio-user-leave@xxxxxxxxxxxxxxxxxxxx
