From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anssi Hannula Subject: Re: [PATCH v3 0/5] ALSA: hda - hdmi: ATI/AMD multi-channel and HBR support Date: Sat, 23 Nov 2013 17:45:00 +0200 Message-ID: <5290CD7C.7020907@iki.fi> References: <1382638238-25055-1-git-send-email-anssi.hannula@iki.fi> <529004F8.7070801@iki.fi> <20131123154009.6c8c6e97@symphony.aura-online.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from tulikuusama.dnainternet.net (tulikuusama.dnainternet.net [83.102.40.132]) by alsa0.perex.cz (Postfix) with ESMTP id C4BB3261693 for ; Sat, 23 Nov 2013 16:45:04 +0100 (CET) In-Reply-To: <20131123154009.6c8c6e97@symphony.aura-online.co.uk> 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: James Le Cuirot Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org 23.11.2013 17:40, James Le Cuirot kirjoitti: > On Sat, 23 Nov 2013 03:29:28 +0200 > Anssi Hannula wrote: > >> 23.11.2013 03:05, James Le Cuirot kirjoitti: >>> Anssi Hannula iki.fi> writes: >>> >>>> Here's another revision of the ATI/AMD multichannel+HBR patchset. >>> >>> Hi Anssi. Many thanks for your work on this. I am very keen to test >>> this new code but have so far been unsuccessful. I have a Radeon >>> 4670 (Sapphire branded) connected to a Yamaha RX-V773. I am running >>> the sound/for-next kernel (82755ab) with your "missing PCM SAD" >>> patch applied. >>> >>> The new kernel has allowed ALSA to recognise the card as >>> multichannel and I can issue the following speaker-test command but >>> I still only hear "Front Left" and "Front Right" and the Yahama >>> seems to report the signal as stereo. >>> >>> # speaker-test -Dhdmi:CARD=HDMI,DEV=0 -c6 -t wav >> >> I guess it is the same without "-t wav"? > > Yes. > >>> I have the HDMI cable plugged >>> into the secondary output as my speakerless DVI monitor is plugged >>> into the primary but I have also tried the HDMI cable in the >>> primary output by itself. >> >> Hmm, I'm not sure what the behavior is supposed to be with multiple >> video outputs when we have only a single audio output (HDA pin)... >> >> What happens if you plug both of your outputs to the A/V receiver, >> will only one output get audio? > > I tried this and as I expected, it sent the same audio to both outputs. > Still stereo only though. > >> ELD stuff is not necessary for playback, it is mostly for information >> (and providing the necessary info for ELD is disabled on radeon DRI >> drivers on some kernels on some GPUs ATM due to some issues). >> >> Is there anything interesting in "dmesg"? > > I have attached my dmesg. I enabled ALSA debug and verbose printk but > disabled the on-board HDA audio in the BIOS to make it less confusing, > and also to see if it made any difference, which it didn't. The only > entry I find noteworthy is about the ELD but you say this isn't > required. > > There seems to be little to go on here. Would it be worth enabling > CONFIG_SND_DEBUG_VERBOSE? I gather it's very noisy but maybe that level > of detail is needed. Hopefully you have a better idea. Yeah, that would be useful. Also, forgot to mention, but next time please indicate the part of the log where you start the multichannel speaker-test command (e.g. timestamps). -- Anssi Hannula