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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

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Old 06-03-2015, 02:09 PM   #1
Ragnarok Warrior
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Location: Bangor, ME
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No audio after shutdown -h


Ubuntu 14.04 LTS
Mid 2007 mac mini

So I was up late watching and downloading a few shows from crunchyroll, the downloads hadn't finished by the time I went to bed and off peak net ends at 8am. Deluge has issues with the scheduler stopping a download sometimes so I decided to schedule a shutdown instead. In the terminal I entered:
Code:
sudo shutdown -h 07:59
to shut the computer off at 8am, when I turned the mac back on I had no audio on either the internal speakers or the headphone jack. I have checked the basics such as alsamixer and pulse audio having muted for some reason and whether the correct audio device was selected. The reason that I am posting in hardware is after several reboots I happened to notice that I could not hear the "Congratulations dumbass you bought a Mac" chime during EFI boot, which leads me to believe that it is a soundcard issue (fried?).

From lspci -v:
Code:
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 02)
	Subsystem: SigmaTel STAC9221 HD Audio Codec
	Flags: bus master, fast devsel, latency 0, IRQ 43
	Memory at 90440000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [50] Power Management version 2
	Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
	Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
	Capabilities: [100] Virtual Channel
	Capabilities: [130] Root Complex Link
	Kernel driver in use: snd_hda_intel
And lsmod output:
Code:
ragnarok@Valhalla:~$ sudo lsmod
Module                  Size  Used by
ctr                    12905  2 
ccm                    17496  2 
bnep                   18895  2 
rfcomm                 53664  8 
binfmt_misc            13140  1 
btusb                  27580  0 
bluetooth             342208  22 bnep,btusb,rfcomm
snd_hda_codec_idt      48978  1 
joydev                 17101  0 
hid_generic            12492  0 
arc4                   12536  2 
hid_appleir            12866  0 
usbhid                 47070  0 
hid                    87604  3 hid_generic,usbhid,hid_appleir
snd_hda_intel          42794  3 
snd_hda_codec         164067  2 snd_hda_codec_idt,snd_hda_intel
snd_hwdep              13272  1 snd_hda_codec
applesmc               18772  0 
input_polldev          13648  1 applesmc
snd_pcm                85501  2 snd_hda_codec,snd_hda_intel
snd_page_alloc         14230  2 snd_pcm,snd_hda_intel
snd_seq_midi           13132  0 
snd_seq_midi_event     14475  1 snd_seq_midi
snd_rawmidi            25135  1 snd_seq_midi
dm_multipath           22402  0 
scsi_dh                14458  1 dm_multipath
coretemp               13195  0 
kvm_intel             132651  0 
kvm                   388310  1 kvm_intel
snd_seq                55383  2 snd_seq_midi_event,snd_seq_midi
lpc_ich                16864  0 
snd_seq_device         14137  3 snd_seq,snd_rawmidi,snd_seq_midi
ath5k                 134977  0 
ath                    23922  1 ath5k
snd_timer              28584  2 snd_pcm,snd_seq
mac80211              546067  1 ath5k
cfg80211              409394  3 ath,ath5k,mac80211
i915                  710013  3 
snd                    60939  16 snd_hwdep,snd_timer,snd_hda_codec_idt,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
mac_hid                13037  0 
video                  18903  1 i915
drm_kms_helper         48868  1 i915
drm                   244037  4 i915,drm_kms_helper
shpchp                 32128  0 
soundcore              12600  1 snd
i2c_algo_bit           13197  1 i915
parport_pc             31981  0 
ppdev                  17391  0 
lp                     13299  0 
parport                40836  3 lp,ppdev,parport_pc
firewire_ohci          35529  0 
firewire_core          61867  1 firewire_ohci
crc_itu_t              12627  1 firewire_core
pata_acpi              12886  0 
sky2                   52946  0
So the questions are: How do I determine whether this is a hardware/software issue, and why would a good shutdown cause this (versus yanking the plug or holding the power button, which I would understand). More info as needed
 
Old 06-03-2015, 04:37 PM   #2
rokytnji
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When you boot up ubuntu. Open a terminal

Code:
sudo dmesg | tail

see if throws out any errors related to sound.
I don't own a Mac so cannot comment on their hardware troubleshooting.

edit; have you checked the bios or sound hotkey on the deck of your mac to make sure nothing is turned off?

https://support.apple.com/en-us/HT204436

Last edited by rokytnji; 06-03-2015 at 04:47 PM.
 
  


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