Description: After upgrading from 3.8.11 to 3.9.2, mute/unmute no longer works in amixer or alsamixer. (It doesn't work in 3.9.4, either.) It works again if I downgrade back to 3.8.11. Hardware: This is a Lenovo ThinkPad T500. Relevant hardware: [d@eighth ~]$ lspci | grep -i audio 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) [d@eighth ~]$ cat /proc/asound/cards 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xfc020000 irq 46 29 [ThinkPadEC ]: ThinkPad EC - ThinkPad Console Audio Control ThinkPad Console Audio Control at EC reg 0x30, fw 7VHT12WW-1.01 Steps to reproduce: On 3.8.11, amixer behaves normally: [d@eighth ~]$ amixer set Master mute Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 74 Mono: Playback 35 [47%] [-39.00dB] [off] After upgrading to 3.9.2 and rebooting, mute/unmute no longer works: [d@eighth ~]$ amixer set Master mute amixer: Invalid command! (Originally reported on the Arch Linux bug tracker at https://bugs.archlinux.org/task/35256 )
Same problem here, $ lspci |grep -i audio 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03) Problem remains in 3.9.x, 3.10.x Hope this would be fixed soon.
Please give alsa-info.sh outputs on both 3.8.x and 3.10.x kernels. At best, take alsa-info.sh outputs at both mute and unmuted states to see the difference. Run with --no-upload option and attach (don't paste) the outputs to the bugzilla.
Created attachment 107150 [details] 3.8.11-1, muted
Created attachment 107151 [details] alsa-info.txt.3.8.11-1.unmuted
Created attachment 107152 [details] alsa-info.txt.3.10.5-1.unmuted
Added alsa-info.sh for 3.8.11 and 3.10.5. (There's no 'muted' version for 3.10.5 because I can't mute.)
Created attachment 107153 [details] alsa-info for kernel 3.10.5-1-ARCH Issue: Cannot mute/unmute $amixer set Master mute amixer: Invalid command!
Thanks. Could you try the patch below?
Created attachment 107154 [details] Fix patch
Created attachment 107226 [details] alsa-info.txt.3.10.6-2.unmuted.patched The patch didn't resolve the issue for me. Here's the alsa-info output after applying the patch.
Created attachment 107227 [details] alsa-info.txt.3.10.6-2.unmuted.really-patched Correction: your patch worked perfectly. I had booted to the wrong kernel. Thanks!
Good to hear. The patch was already merged to Linus tree with Cc to stable, so let's close this bug.