![]() ![]() (In reply to Luca Russel from comment #27) ![]() I can do some debugging and test possible patches, but I need support to help. Just for the record, I experimented a bit with the current quirks available:Īny pointers/directions on how to solve this issue? With the new patched kernel module, the error on invalid clock source 41 disappeared, but the audio stuttering is still there. I also verified that this problem appears with recent version (bcdDevice=1.35) while does not occur with older firmware (bcdDevice<=1.12).Īnyway, I rebuilt the kernel patching the snd_usb_audio by adding a delay after commands (following the same quirks done on other interfaces for invalid clock source, like Teac for instance - see Bug 108961 – Teac UD-503: clock source 41 is not valid). "Clock Source 41 not valid" in syslog and during playback the audio starts and stop continually, it does stuttering. When the device is connected via USB (both 2.0 and 3.0 ports), I see Dell XPS with Ubuntu 20.04 on kernel 5.8. I have tested the Behringer UMC 404 HD usb audio device ( ) Output of alsa-info -no-upload for UMC202HD Quirk table entries for Behringer devices ![]() 5.15-v7l+, 5.8, 4.18 on both x86_64 and arm64Īlsa info from older model that is working without issue.īheringer UMC 404 HD bcdDevice=1.35 - LSUSB verbose - confirmed audio stutteringīheringer UMC 404 HD bcdDevice=1.35 - alsa-info - confirmed audio stutteringīehringer UMC 204 HD bcdDevice=1.35 - alsa-info.sh - stutteringĪ workaround patch for interface reset at clock change ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |