From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pierre-Louis Bossart Subject: Re: HDMI LPE audio on Intel Compute Stick 2nd Gen (CHT) Date: Fri, 20 Oct 2017 10:54:45 -0500 Message-ID: <11e337a4-0656-50d3-3c16-56cc437a32c7@linux.intel.com> References: <7827e954-d9d0-4737-5e47-13e0e69fd92d@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by alsa0.perex.cz (Postfix) with ESMTP id E226C267708 for ; Fri, 20 Oct 2017 18:39:14 +0200 (CEST) In-Reply-To: Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Ian W MORRISON Cc: Takashi Iwai , alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On 10/20/17 8:45 AM, Ian W MORRISON wrote: >> I've just noticed that non of the kernels from v4.13 and up run on my >>> Intel Compute Stick (2nd gen Cherry Trail STK1AW32SC) unit and have >>> HDMI LPE audio working. >>> >> >> I have not tested HDMI in a while but I am not aware of any issues either. >> There were some patches recently to fix PulseAudio problems and I suppose >> some folks used a recent kernel? >> >> > It actually happened since v4.12 as now I get three HDMI LPE Audio devices > show up with 'aplay -l' rather than just one. Only 'device 2' works so if I > change the sink to use that device I get sound. So basically it can be > fixed in userland however I'm seeing others with different devices also > complaining how audio is broken and I think it is something that many users > don't know to fix. Is it worth looking into further or just leaving it as a > known issue? I don't think it's a bug, it's a feature... The jack information tells you which device is connected/active, so userspace has all the data needed to select the right routing.