Description of problem: (Thinkpad T430, HD Audio, Realtek ALC3202 sound card, Also known as ‘ALC269VC’) whenever I shutdown laptop, I get a "cracking noise" from speakers before the machine actually powers off . Version-Release number of selected component (if applicable): Fedora 18 (Spherical Cow) 3.8.11-200.fc18.i686 How reproducible: Steps to Reproduce: 1. Normal shutdown Fedora. 2. At the end of “shutdown”, pop noises from speakers. Actual results: Thera is a loud crackling sound before the laptop actually powers off. Expected results: Laptop should shutdown quiet. as same as Windows7. Additional info: Introduce shutup callback to Realtek spec struct Add shutup callback to be called codec-specifically for avoiding pop noises at suspend or shutdown. As a generic callback, just turn EAPD off. In /linux3.8/sound/pci/hda/patch_realtek.c, the callback only turn of ALC269VB, but ALC269VA & ALC269VC also need turn off: static void alc269_shutup(struct hda_codec *codec) { struct alc_spec *spec = codec->spec; if (spec->codec_variant != ALC269_TYPE_ALC269VB) return; if (spec->codec_variant == ALC269_TYPE_ALC269VB) alc269vb_toggle_power_output(codec, 0); if (spec->codec_variant == ALC269_TYPE_ALC269VB && (alc_get_coef0(codec) & 0x00ff) == 0x018) { msleep(150); } } sorry for my poor English.
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Fedora 18 changed to end-of-life (EOL) status on 2014-01-14. Fedora 18 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.