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Date: Fri, 26 Nov 2010 06:59:23 +0100 From: Takashi Iwai <tiwai@...e.de> To: Andrey Rahmatullin <wrar@...r.name> Cc: alsa-devel@...a-project.org, linux-kernel@...r.kernel.org Subject: Re: [BISECTED] 2.6.36 regression for ALC892 At Fri, 26 Nov 2010 02:18:03 +0500, Andrey Rahmatullin wrote: > > Hello. I have an Intel H55 motherboard (ASUS P7H55-M PRO) with ALC892 > sound codec and a 3.5" front panel which doesn't support newer HDA pinout. > So the panel is connected in "AC97" mode and this mode is set in the BIOS > setup. In 2.6.35 and earlier the panel's headphones jack was working. Now > it isn't. I've bisected this down to > ce503f38bdb59c9175a9076215a3ba579fad4e64 (which is present in 2.6.36), > reverting it helps. I've got "Too many connections" messages without this > commit, indeed, but I had no problems (though I use only a pair of > speakers connected to the rear panel and headphones in the front panel). Obviously your front-panel doesn't suit with the HD-audio, and BIOS still doesn't set the right pin defaults. That is, it was a bug of the driver that made your device working :) Now, the driver does the right thing. A possible fix is to add quirks to override the wrong BIOS setup. Please give alsa-info.sh outputs with and without the commit to figure out the real pin configuration. Takashi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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