Dummy driver only after Xorg crashed

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Dummy driver only after Xorg crashed

Postby RRRR on Wed Jan 22, 2014 1:49 am

I just had the weirdest thing happen, I plugged a USB device on a hub I have and that made X freeze for some reason (something that usually doesn't happen!).
I then managed to go to the console and restart mdm and get back into X where everything is normal except the sound.
All I can see is the Dummy Driver in the control panel and no sound will come out from the computer and I tried many things:

- I did many cold reboot
- sudo usermod -aG audio,video,pulse,pulse-access user
- the drivers are there as usual and even did "alsa force-reload" a few times (and it worked)
- I removed / re-installed pulseaudio
- I cleared the config files (find ~ -iname "*pulse*"
- I tried to change the detection in /etc/modprobe.d/alsa-base.conf ...to no avail... with either:
    options snd-hda-intel model=auto
    options snd-hda-intel model=generic
    options snd-hda-intel model=basic


I can't cat file > /dev/snd/* device and get some noise...
But I can play the line in through the headphone out and control the volume from alsamixer.
So the speaker are good, the card is good, it's just the pulseaudio setup that seems to be killing any possibility of getting any sound out.

Any idea what could cause such a strange behaviour and what I could try to get the sound back?
I've been running Mint since Mint 14 on this machine without any issue otherwise...
Thanks!

Code: Select all
> inxi -A
Audio: Card: Intel 7 Series/C210 Series Chipset Family High Definition Audio Controller driver: snd_hda_intel
           Sound: Advanced Linux Sound Architecture ver: k3.11.0-15-generic
Code: Select all
>dmesg|grep -i hda
[    2.291734] snd_hda_intel 0000:00:1b.0: irq 75 for MSI/MSI-X
[    2.319871] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input4
[    2.319925] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input5
[    2.319970] input: HDA Intel PCH Front Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input6
[    2.320024] input: HDA Intel PCH Line Out Side as /devices/pci0000:00/0000:00:1b.0/sound/card0/input7
[    2.320070] input: HDA Intel PCH Line Out CLFE as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
[    2.320124] input: HDA Intel PCH Line Out Surround as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
[    2.320175] input: HDA Intel PCH Line Out Front as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[    2.320225] input: HDA Intel PCH Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[    2.320279] input: HDA Intel PCH Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[    2.320330] input: HDA Intel PCH Front Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input13
Code: Select all
>cat /proc/asound/cards
 0 [PCH            ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xf7e30000 irq 75
Code: Select all
>ll /dev/snd/
total 0
drwxr-xr-x  2 root root       60 Jan 21 09:06 by-path
crw-rw----+ 1 root audio 116, 10 Jan 21 09:06 controlC0
crw-rw----+ 1 root audio 116,  9 Jan 21 09:06 hwC0D0
crw-rw----+ 1 root audio 116,  8 Jan 21 09:06 hwC0D3
crw-rw----+ 1 root audio 116,  7 Jan 21 09:06 pcmC0D0c
crw-rw----+ 1 root audio 116,  6 Jan 21 09:06 pcmC0D0p
crw-rw----+ 1 root audio 116,  5 Jan 21 09:06 pcmC0D1p
crw-rw----+ 1 root audio 116,  4 Jan 21 09:06 pcmC0D2c
crw-rw----+ 1 root audio 116,  3 Jan 21 09:06 pcmC0D3p
crw-rw----+ 1 root audio 116,  2 Jan 21 09:06 pcmC0D7p
crw-rw----+ 1 root audio 116,  1 Jan 22 00:41 seq
crw-rw----+ 1 root audio 116, 33 Jan 21 09:06 timer

RRRR
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Re: Dummy driver only after Xorg crashed

Postby RRRR on Sat Jan 25, 2014 7:16 pm

Well, it looks like the randomsound package is breaking things... *fixed*
RRRR
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