ThinkPad T-510: Audio output mute LED not working in 3.19.2

System: Arch linux, synched to repos a few days ago Kernel: 3.19.2-1 HW: Lenovo ThinkPad T-510 Also see: Attached output from 'lspci -vvv' and 'alsa-info.sh' Throughout the 3.18 kernel series, both the MIC mute and audio output mute LEDs worked as expected: The LEDs illuminated

ThinkPad T-510: Audio output mute LED not working in 3.19.2

System: Arch linux, synched to repos a few days ago Kernel: 3.19.2-1 HW: Lenovo ThinkPad T-510 Also see: Attached output from 'lspci -vvv' and 'alsa-info.sh' Throughout the 3.18 kernel series, both the MIC mute and audio output mute LEDs worked as expected: The LEDs illuminated