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For some reason whenever I try to load VirtualBox using VBoxHeadless inside a remote SSH shell session, it crashes with the following error:

$ VBoxHeadless -s myvm
Oracle VM VirtualBox Headless Interface 5.1.2_OSE
(C) 2008-2016 Oracle Corporation
All rights reserved.

ALSA lib pcm_hw.c:1701:(_snd_pcm_hw_open) Invalid value for card
ALSA lib pcm_hw.c:1701:(_snd_pcm_hw_open) Invalid value for card
Segmentation fault (core dumped)

Is there a way to fix or at least work around this problem? I don't really need sound support.

  • There are only a few ways to fix a segfault, and the first two involve fixing the code yourself, and reporting the problem to the developers. Sadly, asking on SE is never on that list. – Satō Katsura Aug 3 '16 at 6:55
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I don't exactly know why this error occurs, but as an interim solution, I managed to work around the problem by disabling sound altogether:

VBoxManage modifyvm myvm --audio none

where myvm is the name of the virtual machine.

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