I'm running on an Acer Chromebook 11. I flashed it with SeaBios and set up Ubuntu (as xubuntu w/ lxde) as the ONLY operating system. That is to say, I am NOT using chrubuntu. Ubuntu has a direct link to the hardware.

When I play any sound, I cannot hear it over plugged-in headphones or earbuds, or the speakers. If I go to the sound options, I can put sound over two HDMI ports, but neither option works, or detects a "plugged-in" state, although the HDMI can be plugged in and the computer only has one HDMI port.

The Chromebook I'm using has built-in speakers, but neither the speakers nor the headphone jack are ever detected by the operating system.

Here is my result from alsa-info.sh:


Help would be urgently appreciated as this computer is a birthday gift for a friend!


From here (at the end of the page) , headphones works using alsamixer (look here ):
press F6 to select 2nd device , move to "headphones" fader, press "m" to unmute.

  • Alsamixer doesn't show ANY faders. There are two chips, S/PDIF and S/PDIF1, but they're both locked in 00 boxes. The only card I can see is the HDA Intel PCH, and the only chip alsamixer detects is the HDMI output chip. – GiovanH Dec 6 '15 at 15:36
  • Did you install Ubuntu like in the linked site ? instructions are here : github.com/raphael/linux-samus – laugeo Dec 6 '15 at 16:06
  • No. As explained, I installed ubuntu via a standard bootable USB, and I am not dual-booting chrome OS. – GiovanH Dec 6 '15 at 20:35
  • So , you have chances to make it work using the method shown in the above link: this will install a special kernel. – laugeo Dec 7 '15 at 12:58

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