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I meet this problem on my ThinkPad T430 also, if you wanna repeat, you need to click speaker icon first and then long press volume key. I know it's not a real solution, but it's really work :P OS: Ubuntu 16.04 64bit Kernel: 4.4.0-24-generic


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I found the solution here worked for me. As root, you'll need to edit the file: $ sudo vim /usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf.common Find the section that looks like the following: [Element PCM] switch = mute volume = merge override-map.1 = all override-map.2 = all-left,all-right Add a new setting for volume-limit so it looks ...


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In the terminal: sudo gedit /etc/default/grub Change GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=" Save, then sudo update-grub Restart computer.



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