8.1-RELEASE: snd_hda works as module only, suspend/resume leaves display off

Chip Camden sterling at camdensoftware.com
Mon Nov 15 19:55:16 UTC 2010


Quoth Stefan Walter on Monday, 15 November 2010:
> Hi,
> 
> I've been using 8.1-RELEASE on this desktop machine for a few months
> already, but only now found the time to look at a couple of problems with
> snd_hda and suspend/resume it still has. Maybe someone here has hints to
> fix them - I'd be grateful to hear them.
> 
> Audio with snd_hda(4) works, but only if loaded as a module AND only if I
> load the module AFTER booting. If I compile it into the kernel or add
> snd_hda_load="YES" to /boot/loader.conf, dmesg shows the following:
> 
> hdac0: HDA Codec #0: ATI RS690/780 HDMI
> pcm0: <HDA ATI RS690/780 HDMI PCM #0 HDMI> at cad 0 nid 1 on hdac0
> hdac1: HDA Codec #0: Realtek ALC885
> pcm1: <HDA Realtek ALC885 PCM #0 Analog> at cad 0 nid 1 on hdac1
> pcm2: <HDA Realtek ALC885 PCM #1 Analog> at cad 0 nid 1 on hdac1
> pcm3: <HDA Realtek ALC885 PCM #2 Digital> at cad 0 nid 1 on hdac1
> 
> mixer(8) shows:
> 
> Mixer vol      is currently set to  75:75
> Mixer pcm      is currently set to  75:75
> 
> There is no audio in that case. Unloading and reloading the module (or
> just loading the module manually after the boot process) logs:
> 
> hdac0: <ATI SB600 High Definition Audio Controller> mem 0xfe024000-0xfe027fff irq 16 at device 20.2 on pci0
> hdac0: HDA Driver Revision: 20100226_0142
> hdac0: [ITHREAD]
> hdac0: HDA Codec #0: Realtek ALC885
> hdac1: <ATI (Unknown) High Definition Audio Controller> mem 0xfdffc000-0xfdffffff irq 19 at device 5.1 on pci1
> hdac1: HDA Driver Revision: 20100226_0142
> hdac1: [ITHREAD]
> hdac1: HDA Codec #0: ATI RS690/780 HDMI
> pcm0: <HDA Realtek ALC885 PCM #0 Analog> at cad 0 nid 1 on hdac0
> pcm1: <HDA Realtek ALC885 PCM #1 Analog> at cad 0 nid 1 on hdac0
> pcm2: <HDA Realtek ALC885 PCM #2 Digital> at cad 0 nid 1 on hdac0
> pcm3: <HDA ATI RS690/780 HDMI PCM #0 HDMI> at cad 0 nid 1 on hdac1
> 
> mixer then shows:
> 
> Mixer vol      is currently set to  75:75
> Mixer pcm      is currently set to  75:75
> Mixer speaker  is currently set to  75:75
> Mixer line     is currently set to  75:75
> Mixer mic      is currently set to   0:0
> Mixer mix      is currently set to   0:0
> Mixer rec      is currently set to  75:75
> Mixer igain    is currently set to   0:0
> 
> Audio then seems to work fine. (Plugging earphones into the computer's
> case's front plugs doesn't do anything, though - audio still comes from
> the speakers attached to the plug at the back of the case. Any ideas about
> that?) Loading snd_hda from a startup script would probably work, but I
> guess that's not the way it was meant to work.
> 

I had the same problem, but a later update to 8.1-STABLE seems to have
fixed it.

-- 
Sterling (Chip) Camden    | sterling at camdensoftware.com | 2048D/3A978E4F
http://camdensoftware.com | http://chipstips.com        | http://chipsquips.com
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