Hi all, I noticed a problem with S3 resume and my STAC9200 Intel HDA chip. If I restart alsa after resuming, the pin configurations are wrong. My specific system isn't recognized, so it ends up using the BIOS configuration, but the BIOS doesn't fix up the config registers on resume. The debug messages with --with-debug=detect after boot are: .../patch_sigmatel.c:1279: hda_codec: Unknown model for STAC9200, using BIOS defaults .../hda_codec.c:2150: autoconfig: line_outs=0 (0x0/0x0/0x0/0x0/0x0) .../hda_codec.c:2154: speaker_outs=2 (0xe/0x11/0x0/0x0/0x0) .../hda_codec.c:2156: hp=0xd, dig_out=0x9, din_in=0x0 .../hda_codec.c:2164: inputs: mic=0x10, fmic=0x0, line=0x0, fline=0x0, cd=0x0, aux=0x0 While reloading after an S3 resume produces: .../patch_sigmatel.c:1279: hda_codec: Unknown model for STAC9200, using BIOS defaults .../hda_codec.c:2150: autoconfig: line_outs=1 (0xe/0x0/0x0/0x0/0x0) .../hda_codec.c:2154: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) .../hda_codec.c:2156: hp=0xd, dig_out=0x9, din_in=0x8 .../hda_codec.c:2164: inputs: mic=0x0, fmic=0x10, line=0xf, fline=0x0, cd=0x12, aux=0x0 Note that I am not talking about unloading the drivers before suspend, and reloading them afterwards...there is really nothing that can be done for that case obviously. I'm just looking to be able to do an "alsasound restart" or driver update without having to reboot. So, my proposed and attached patch stores off the BIOS configuration, and restores it on resume. Please review and comment. One thing it does that may not be correct is that it uses the STAC_REF slot in the tables to store the BIOS configuration. If this is a problem, it should be easy enough to just add a STAC_BIOS slot to the tables. Please CC me on any replies. Regards, -Richard
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rjf-alsa-20060813.patch
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