Ubuntu used a patch for this, but it's just a work-around for now and multiple upstream's developers told me that is not the right approach to use. -- debbug#555134 ...
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ID Status▲ Resolution Sev Product Comp Assignee▲ Reporter Summary▼
12500 CLOS NOTA nor Sisyphus kernel-m lakostis rom_as Некорректная идентификация главного регулятора на HDA

File a new bug in the "kernel-modules-alsa-wks-smp" component of the "Sisyphus" product