From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A8847377ECA; Wed, 24 Jun 2026 17:06:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782320765; cv=none; b=JAR8VfUxsAwSu9IIU23dVETmUAxQ4ZyVBwjbp8dArYdGvK3MvddUGrOSDmVllMkrWscHSHTsRauULGslpnCyqwzUka5JEGNBkHqWWqH9BoEr6XFLpCTE4/duLfcuwGAYqbPTotFd+d7LyXM8De5TXjlV7CmAd2x+PEY1gMDO8EE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782320765; c=relaxed/simple; bh=YCDGEuINTLe++ujMs0MLsvBendFNcyERfYr932ENZlY=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References: MIME-Version:Content-Type; b=h1I6cm44QdM6ba71p99AOfKq/lgi32wx5O/DhIVg8WSQahsQDBVprY46YHxr5eX4YC4mkyqnsogWppw8szUvcS6fgRg08OsI/VZjwyzPCv/9GYABoMCipXoGPjLSuGdHab8nbbMzUF07pX1H118vJoEikuuJ1mtiuTOvkkXX8qs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=NAbFzUeU; arc=none smtp.client-ip=192.198.163.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="NAbFzUeU" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1782320763; x=1813856763; h=date:from:to:cc:subject:in-reply-to:message-id: references:mime-version; bh=YCDGEuINTLe++ujMs0MLsvBendFNcyERfYr932ENZlY=; b=NAbFzUeUJY1E9YIY5LQvqx1LHGSF47mGBW7g+8N84azQbBf/QbcH6AYz FWjedB/oL8TOnekLZJKxbO45gGD1ESv9igr4cxw3jfC0Hw2TDeeQ+7kJi 5VUr40syok9G7UCFJA+CjtIHAJJQ9Sz6tcMls6dw2f3wTEbmbysOCmPAz /bHNsUiyDzr+4Gbi2ZEzVHDp4xgIZfcQy5BVHCctOwJ7s0Qr1cFp2UJtQ ZvQBWVJZE4FcBtGLS2K0pA+lWwXot6DCVk3ezc3EvyR5zjnOukITP4TJ9 MVQBt+wXyrkk4m5ikS56OSzoVRUUfZfwzQBfavRF5GqEJFB8Yuw6HIU9v g==; X-CSE-ConnectionGUID: H6CTjG0KSK2ovFUoynmwEg== X-CSE-MsgGUID: z0bREPv0TnikE0tdX+c8ZA== X-IronPort-AV: E=McAfee;i="6800,10657,11827"; a="70599477" X-IronPort-AV: E=Sophos;i="6.24,222,1774335600"; d="scan'208";a="70599477" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jun 2026 10:04:57 -0700 X-CSE-ConnectionGUID: CGqLnAELQLinR1/MALmkCg== X-CSE-MsgGUID: 53XqoACrRRKO7EfJ4Y9shw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,222,1774335600"; d="scan'208";a="255030529" Received: from zzombora-mobl1 ([10.245.244.173]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jun 2026 10:04:54 -0700 Date: Wed, 24 Jun 2026 20:04:50 +0300 (EEST) From: Kai Vehmanen To: Alexander Kaplan cc: Kai Vehmanen , =?ISO-8859-15?Q?P=E9ter_Ujfalusi?= , =?ISO-8859-15?Q?P=E9ter_Ujfalusi?= , Takashi Iwai , linux-sound@vger.kernel.org, Jaroslav Kysela , Pierre-Louis Bossart , stable@vger.kernel.org, Uma Shankar Subject: Re: [PATCH] ALSA: hda/hdmi: disable KAE for Intel Panther Lake In-Reply-To: <178196763509.3248.8656978100050911066@sms-medipool.de> Message-ID: References: <20260612181314.5577-1-alexander.kaplan@sms-medipool.de> <178196763509.3248.8656978100050911066@sms-medipool.de> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7 02160 Espoo Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Hello Alexander, On Sat, 20 Jun 2026, Alexander Kaplan wrote: > thanks for the quick test patch. > > I ran it on Panther Lake with PTL kept at MODEL_ADLP so the KAE path is > active. [...] > # speaker-test -D hw:0,3 -c6 (silent) > hdmi_pin_setup_infoframe: pin NID=0xa channels=6 ca=0x0b > HDMI: KAE 0 cvt-NID=0x3 > hdmi_pin_hbr_setup: NID=0xa, pinctl=0x40 > i915_hsw_setup_stream: HDMI: multichannel stream, disable KAE > > # speaker-test -D hw:0,3 -c2 (stays silent) > hdmi_pin_setup_infoframe: pin NID=0xa channels=2 ca=0x00 > HDMI: KAE 0 cvt-NID=0x3 > hdmi_pin_hbr_setup: NID=0xa, pinctl=0x40 > HDMI: KAE 1 cvt-NID=0x3 [...] > So the wedge happens earlier in the sequence, as you suspected, not at > the re-arm. > The trigger looks like the multichannel DMA start itself once the KAE > block has been active in the running power cycle, below the codec verb > level. thanks for the quick test. I'm working with our display folks to test this out with some Synaptic DP-alt HDMI converter. This same test worked ok with one converter (Lenovo USB-C to HDMI Adapter GX90K37871), but I'll try to get someone to test with more converters. Given you see this with multiple DP-HDMI converters, we should be able to hit this. And a bit suspicious how this could work with the Lenovo adapter. I wonder if we have something else differing in the test setup. Given you cannot recover by unplugging and reconnecting the converter, it would seem the issue is on transmitter side and should be visible with all DP-alt receivers. I filed a bug to Xe/display to track this effort: https://gitlab.freedesktop.org/drm/xe/kernel/-/work_items/8412 Br, Kai