Date: Thu, 31 May 2012 14:43:27 -0600 From: Gary Aitken <ah@dreamchaser.org> To: Polytropon <freebsd@edvax.de> Cc: freebsd-questions@freebsd.org Subject: Re: Audio CD issue -- most everything but noise ASUS M4A89TD mobo Message-ID: <4FC7D7EF.3010304@dreamchaser.org> In-Reply-To: <20120531205620.344af89b.freebsd@edvax.de> References: <4FC711F6.6040206@dreamchaser.org> <20120531135420.07939dbe.freebsd@edvax.de> <4FC7B7CD.9050204@dreamchaser.org> <20120531205620.344af89b.freebsd@edvax.de>
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On 05/31/12 12:56, Polytropon wrote: > This functionality is not present on modern boards anymore. > Also note it's not digital. It's analog. GND plus two > channels. Audio transmission using the 40/80 pin (P)ATA > cable would have been digital. Thanks for the correction, I thought I knew that. doh. > Still, there _is_ a way of a workaround which is so ugly and > partially stupid that I fear to mention it. > > You need a cable, 2 x 3.5mm stereo jack, which you connect > from the front connector of the CD drive to the line-in > connector on the back of your machine (the main baord's > line-in connector, typically colored light blue). > > I didn't say anything! :-) Quality sucks though. > Okay, this means the mixer doesn't even have a CD audio > mixer channel. If I remember correctly, this channel is > directly associated to the internal audio connector which > is _not_ present in your system. You mean a cd mixer channel for digital audio only shows up if there is a physical analog audio input??? If that's the problem, is there any way to force it? Otherwise, I'm doa without some kind of kernal patch? It's hard to imagine no-one else has had this problem... > The /dev/cd0 device is the "SCSI translated" device which does > perform the same purpose as /dev/acd0, except that it's not > using the ATAPI "command set", but the SCSI "command set". > > See "man 4 cd" and "man 4 acd" for comparison. No acd in 9.0. But I see what you're saying. > You can also check the content of /dev/sndstat.. > % cat /dev/sndstat FreeBSD Audio Driver (newpcm: 32bit 2009061500/i386) Installed devices: pcm0: <HDA VIA VT1708_8 PCM #0 Analog> (play/rec) default pcm1: <HDA VIA VT1708_8 PCM #1 Analog> (rec) pcm2: <HDA VIA VT1708_8 PCM #2 Digital> (play). %cat /dev/sndstat FreeBSD Audio Driver (newpcm: 64bit 2009061500/amd64) Installed devices: pcm0: <HDA ATI R6xx HDMI PCM #0 HDMI> (play) pcm1: <HDA Realtek ALC892 PCM #0 Analog> (play/rec) default pcm2: <HDA Realtek ALC892 PCM #1 Analog> (play/rec) pcm3: <HDA Realtek ALC892 PCM #2 Digital> (play) pcm4: <HDA Realtek ALC892 PCM #3 Digital> (play) I presume the "...Analog> (rec)" on yours is the missing analog input. Hmmm. Neither mine nor yours shows any "...Digital> (rec). Should I expect one if things were working properly? Probably not, if the inclusion of cd is just triggered by the analog input, and the card doesn't actually have a physical digital input. >> (cd0:ata2:0:0:0): SCSI sense: ILLEGAL REQUEST asc:2c,0 (Command sequence error) ... > They appear when trying to access the CD drive via "SCSI commands", > i. e. using /dev/cd0. ok, so user generated error by trying to use cd0 instead of cd someplace. >> From the manpage: "The snd_atiixp bridge driver allows the > generic audio driver, sound(4), to attach to ATI IXP audio > devices." Not sure if that applies. Do you have an ATI IXP > audio device? Don't think so. No "ixp" in dmesg The two audio dmesg entries are hdac0: <ATI (Unknown) High Definition Audio Controller> mem 0xfe9bc000-0xfe9bfff hdac1: <ATI SB600 High Definition Audio Controller> mem 0xfe6f8000-0xfe6fbfff ir I think the first one is the main one, and the second one is a secondary hd output.
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