alsa-project/alsa-utils issue #35 was opened from immortalaxay:

I am using Ubuntu 18.04 (alsa-utils/amixer version 1.1.3) and trying to set volume using amixer command but amixer not setting Master volume at the given percentage value.

$ amixer -M -c PCH sset Master **85**% Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 87 Mono: Playback 81 [**83**%] [-4.50dB] [on]

$ amixer -M -c PCH sset Master **86**% Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 87 Mono: Playback 82 [**85**%] [-3.75dB] [on]

$ amixer -M -c PCH sset Master **87**% Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 87 Mono: Playback 82 [**85**%] [-3.75dB] [on]

$ amixer -M -c PCH sset Master **88**% Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 87 Mono: Playback 82 [**85**%] [-3.75dB] [on]

$ amixer -M -c PCH sset Master **89**% Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 87 Mono: Playback 83 [**88**%] [-3.00dB] [on]

$ amixer -M -c PCH sset Master **90**% Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback 0 - 87 Mono: Playback 83 [**88**%] [-3.00dB] [on]

Issue URL : https://github.com/alsa-project/alsa-utils/issues/35 Repository URL: https://github.com/alsa-project/alsa-utils