Comment 9 for bug 281732
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| jonas (jonas73x) wrote Re: Mute button on thinkpad x200/x200s | #9 |
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0e1f616
(Get the code!)
i have the same issue with a thinkpad t400. as suggested elsewhere, updating the bios and adding the boot option acpi_osi="Linux" fixes the issue. both mute and unmute works and i get the correct OSD. however, since i don't really know what other things the acpi_osi="Linux" boot option alters i'm reluctant to use it.