Matthew R. Hurne wrote: > Greetings, > > I am running Linux on an MSI Crystal 945, which has a highly-integrated > MS-7290 mainboard. This board includes an Intel ICH7 southbridge and a > Realtek ALC262 codec. The board has integrated microphone, line-in and > line-out jacks (labeled AUDIO-JK1 on the board). In addition, the unit > has internal speakers. The speakers are connected to an MSI MS-4088; a > small board which also hosts the unit's power button. The MS-4088 is > connected to the MS-7290 mainboard with some bundled wires. > > ALSA appears to accurately determine that the unit has an ICH7 and > ALC262, and I am able to use alsamixer to adjust levels. I am also able > to use aplay without any reported errors. However, no audio is heard > from the units internal speakers. I have passed every possible model > (as listed in ALSA-Configuration.txt) to the ALSA driver > (snd-hda-intel), to no avail. For some of the models (or perhaps all; I > unfortunately did not pay close attention to this detail), audio IS > heard through headphones plugged in to the unit's line-out jack. > However, the audio heard is at an extremely low volume, even if all the > mixer levels are unmuted and set to 100%. Note that if the driver is > loaded without specifying a model, or when specifying "model=auto", I > see the following from dmesg: > > hda_codec: Unknown model for ALC262, trying auto-probe from BIOS... > > > I have tried the following versions of ALSA: 1.0.14, 1.0.15, 1.0.16rc1. > The unit is running Linux kernel version 2.6.15.7-kiosk-1; it is vanilla > 2.6.15.7 patched for unionfs, squashfs and bootsplash. > > I am attaching the contents of /proc/asound/card0/codec#0 and lspci -vv. > I also have a graph generated by codecgraph, but won't attach it now > since it will cause my message to be large enough to await moderator > approval. > Graph attached... > > The version of GCC used to compile ALSA is 3.3.5: > > root@kiosk:~# gcc -v > Reading specs from /usr/lib/gcc-lib/i486-slackware-linux/3.3.5/specs > Configured with: ../gcc-3.3.5/configure --prefix=/usr --enable-shared > --enable-threads=posix --enable-__cxa_atexit --disable-checking > --with-gnu-ld --verbose --target=i486-slackware-linux > --host=i486-slackware-linux > Thread model: posix > gcc version 3.3.5 > > > I would not be surprised if this is a board configuration the ALSA team > has not yet dealt with. As far as I can tell, the MS-7290 was designed > specifically for the Crystal 945 barebones unit, so its probably not in > widespread use. Is there someone who would be willing to work with me > to get this working? Just let me know what you need, and I'll do my > best to provide it. > > BTW, I did have to "hack" the alsa-driver 1.0.16rc1 source to get the > various ALSA kernel modules to load (removed unresolved references to > do_posix_clock_monotonic_gettime; I think tiwai's fix in > include/adriver.h could be applied elsewhere, but I just removed the > references altogether).
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