LinuxQuestions.org - Unable to play sound on chroot

Hello, I'm hoping somebody can help because as of now I am out of ideas.

I have an ubuntu installation (14.04) that is on my hard disk and I'm running fatdog64 in ram. I have been chrooting into the ubuntu machine to access software that isn't available on the fatdog machine (like audacious). The problem is, sound isn't working.

Here's what I do know:
1) The sound works fine in fatdog64 outside the chroot

2)This exact setup works for me on a different laptop, with fatdog as the host and ubuntu as chroot

3) The same error happens in fatdog64 AND xubuntu 14.04 live CD when I chroot into the ubuntu directory (so I don't think the problem is related to fatdog64 specificallly)

Here is my lscpci:

Code:

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Root Complex

00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Trinity [Radeon HD 7640G]

00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Trinity HDMI Audio Controller

00:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Root Port

00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 03)

00:10.1 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 03)

00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode]

00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11)

00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 11)

00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 14)

00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller (rev 01)

00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)

00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] FCH PCI Bridge (rev 40)

00:15.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 0)

00:15.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 1)

00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 0

00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 1

00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 2

00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 3

00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 4

00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 5

02:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)

04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)

05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)

Here is the output of lsmod | grep ^snd on the host:

Code:

snd_pcm_oss            37022  0 

snd_mixer_oss          13835  1 snd_pcm_oss

snd_hda_codec_idt      42652  1 

snd_hda_codec_generic    49918  1 snd_hda_codec_idt

snd_hda_codec_hdmi    36303  1 

snd_hda_intel          20483  2 

snd_hda_controller    17339  1 snd_hda_intel

snd_hda_codec          84740  5 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller

snd_pcm                79141  5 snd_pcm_oss,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller

snd_timer              17687  1 snd_pcm

snd                    55900  13 snd_pcm_oss,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_mixer_oss

Here is the chroot script:

Code:

mount --bind /proc /aufs/devsave/proc

mount --bind /dev /aufs/devsave/dev

mount --bind /dev/pts /aufs/devsave/dev/pts

mount --bind /sys /aufs/devsave/sys

mount --bind /var/lib/dbus/ /aufs/devsave/var/lib/dbus

#mount --bind /dev/shm /aufs/devsave/dev/shm

mount --bind /home /aufs/devsave/home/jonathan

mount --bind /tmp /aufs/devsave/tmp

cp /etc/resolv.conf /aufs/devsave/etc/resolv.conf

chroot /aufs/devsave /bin/bash

Here's what audacious says (when run as root on the chrooted machine):

Quote:

(terminal output: ** (audacious:2814): WARNING **: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not provided by any .service files
)

and audacious itself in X says:

Quote:

ALSA error: No suitable mixer element found.
ALSA error: snd_mixer_find_selem failed.

Trying to run audacious as user -ME- gives:

Code:

Could not create directory (/root/.config/audacious): Permission denied

Could not create directory (/root/.config/audacious/playlists): Permission denied



(process:2895): Gtk-WARNING **: Locale not supported by C library.

        Using the fallback 'C' locale.

Cannot create /root/.config/audacious/lock: Permission denied.



** (audacious:2895): CRITICAL **: dbus_g_proxy_new_for_name: assertion 'connection != NULL' failed

WARNING: Audacious seems to be already running but is not responding.

shm_open() failed: Permission denied

Home directory not accessible: Permission denied

W: [pulseaudio] core-util.c: Failed to open configuration file '/root/.config/pulse//daemon.conf': Permission denied

W: [pulseaudio] daemon-conf.c: Failed to open configuration file: Permission denied

pulseaudio: Failed to connect to server: Connection refused

shm_open() failed: Permission denied

Home directory not accessible: Permission denied

W: [pulseaudio] core-util.c: Failed to open configuration file '/root/.config/pulse//daemon.conf': Permission denied

W: [pulseaudio] daemon-conf.c: Failed to open configuration file: Permission denied

alsa: snd_mixer_attach failed: No such file or directory.

alsa: snd_mixer_attach failed: No such file or directory.

mpris2: Could not connect: Connection refused



(audacious:2895): Pango-WARNING **: error opening config file '/root/.config/pango/pangorc': Permission denied

vlc is unable to run as root, so sudo -u jonathan gives:

Code:

VLC media player 2.1.6 Rincewind (revision 2.1.6-0-gea01d28)

[0xd94118] main libvlc error: cannot open config file (/root/.config/vlc/vlcrc): Permission denied

shm_open() failed: Permission denied

Home directory not accessible: Permission denied

[0xdbf5e8] pulse audio output error: PulseAudio server connection failure: Connection refused

shm_open() failed: Permission denied

Home directory not accessible: Permission denied

[0xdae0c8] dbus interface error: Failed to connect to the D-Bus session daemon: Failed to connect to socket /tmp/dbus-sHtIetLoN9: Connection refused

[0xdae0c8] main interface error: no suitable interface module

[0xd94118] main libvlc error: interface "dbus,none" initialization failed

[0xd94118] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.

[0xdae0c8] main interface error: no configuration directory

[0xd94118] main libvlc error: no configuration directory

I feel like the problem has to be something to do with something I haven't done mount --bind with, but I can't seem to figure out what that could be. Besides, it worked on a different laptop (which admittedly had different hardware.) So I'm out of ideas and hoping someone can help me diagnose this.