Last night I was having the usual issue: Audio stops working after resuming from hibernate. The usual fix is to reboot the system, but I thought I'd tinker a little bit back and forth and see if I managed to fix it without a reboot. Unfortunately I can't for the life of me remember what it was a did, tho. This had two effects:
- It started working again without having to reboot
- Upon next boot (today), audio does not work at all. Unsuprisingly, rebooting again does not help.
After checking, it seems that my current problem is that the audio sink I used to have listed under
pavucontrol is not there anymore. Running
pacmd list-sinks only shows the displayport output, which I next to never use:
>>> 1 sink(s) available. * index: 0 name: <alsa_output.pci-0000_00_1b.0.hdmi-stereo> driver: <module-alsa-card.c> flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY state: IDLE suspend cause: priority: 9950 [SNIP] card: 0 <alsa_card.pci-0000_00_1b.0> module: 4 properties: [SNIP] device.bus_path = "pci-0000:00:1b.0" sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0" device.bus = "pci" device.vendor.id = "8086" device.vendor.name = "Intel Corporation" device.product.id = "1c20" device.product.name = "6 Series/C200 Series Chipset Family High Definition Audio Controller" device.form_factor = "internal" device.string = "hdmi:0" device.buffering.buffer_size = "65536" device.buffering.fragment_size = "32768" device.access_mode = "mmap+timer" device.profile.name = "hdmi-stereo" device.profile.description = "Digital Stereo (HDMI)" device.description = "Built-in Audio Digital Stereo (HDMI)" [SNIP]
The main sink that I used to have is simply not there anymore. I can't remember the name of it, but it was something generic along the lines of
lspci | grep -i audio
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
Any assistance on how to find this missing audio sink would be much apprechiated.