When problem happens, please run each group of SET_COEF_INDEX and SET_PROC_COEF, then test if the audio changes normal or not: sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x78 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x003e // test if audio changes normal or not sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x77 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x0015 // test if audio changes normal or not sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x67 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0xf000 //... sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x3b sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x60d9
sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x33 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x8580 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x1b sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x0a6b sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x1a sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x8003 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x0f sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x02a2 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x0e sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x65c0 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x08 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x4ab7 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_COEF_INDEX 0x06 sudo hda-verb /dev/snd/hwC0D0 0x20 SET_PROC_COEF 0x6115 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1925057 Title: [82A1, Realtek ALC287, Speaker, Internal] Underruns, dropouts or crackling sound To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1925057/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
