Hi. This is a shot in the dark, but it is possible that PulseAudio is preventing sound from working. I don't understand why, but that's happened to me many times on several Linux boxes, and the only cure I've found is simply to uninstall it - and then uninstall it again when it gets reinstalled as a dependency for some other package. So I would suggest disabling PulseAudio temporarily to see what happens. You really shouldn't have to uninstall Pulse, but that's what has worked for me.
On Sat, Nov 25, 2017 at 5:19 PM, <channel@xxxxxxxxxxx> wrote:
Hi all,
I have a Macbook Pro 11,2 (with Cirrus CS4208) with Linux installed. I use alsa with pulseaudio server. Before, I have experienced a problem with the sound and then follow the instruction here ( https://askubuntu.com/questions/392688/macbook-pro-11-2-no- ) and the sound works.sound-with-ubuntu-13-10
But now, after a system upgrade, this no longer the case. My hardware is doing fine on other OS. I've,
(1) testing `aplay`, `play` command,
(2) adjusting `alsamixer`,
(3) sending many `hda-verb` (randomly experimenting from the above),
(4) changing `modprobe snd_hda_intel` model param ( https://01.org/linuxgraphics/gfx-docs/drm/sound/hd-audio/mod )els.html#cirrus-logic-cs4208
.. and yet no sound.
How I can test further about this problem? To actually see where's the fault.
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