From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Alexander E. Patrakov" Subject: Re: [PING!] Re: HDMI audio is not working on my new desktop Date: Sat, 5 Oct 2013 18:19:06 +0600 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-qc0-f175.google.com (mail-qc0-f175.google.com [209.85.216.175]) by alsa0.perex.cz (Postfix) with ESMTP id 1D0AA2610B8 for ; Sat, 5 Oct 2013 14:19:08 +0200 (CEST) Received: by mail-qc0-f175.google.com with SMTP id v2so3553412qcr.6 for ; Sat, 05 Oct 2013 05:19:07 -0700 (PDT) In-Reply-To: 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: Wang Xingchao Cc: "Alsa-devel@alsa-project.org" , Takashi Iwai , "Lin, Mengdong" , Wang Xingchao , broonie@kernel.org, "Girdwood, Liam R" List-Id: alsa-devel@alsa-project.org 2013/10/5 Alexander E. Patrakov : > 2013/9/5 Alexander E. Patrakov : >> 2013/8/22 Alexander E. Patrakov : >>> 2013/8/22 Wang Xingchao : >>>> cc Mengdong and Liam, we're in the same PRC audio Team. >>>> >>>> 2013/8/21 Alexander E. Patrakov : >>>>> 2013/8/21 Wang Xingchao : >>>>>> Hi Takashi/Alexander E. Patrakov, >>>>>> >>>>>> 2013/8/20 Takashi Iwai : >>>>>>> Xingchao, could you take a look at this bug? >>>>>> >>>>>> sure, i will take a look at it. >>>>>> But i'm afraid i cannot continue tracking from next week, i'm under >>>>>> leaving process at Intel. >>>>> >>>>> Best wishes to you, and good luck with a new job :) >>>>> >>>>> But then please tell us the contact information of the person at Intel >>>>> who should be contacted instead of you for any further questions >>>>> related to HDMI audio on Haswell. >>>>> >>>>>> At first glance, i saw a lot of errors: >>>>>> >>>>>> [ 772.822663] playback write error (DMA or IRQ trouble?) >>>>>> [ 782.912776] playback write error (DMA or IRQ trouble?) >>>>>> [ 793.002904] playback write error (DMA or IRQ trouble?) >>>>>> [ 803.093052] playback write error (DMA or IRQ trouble?) >>>>>> [ 813.183205] playback write error (DMA or IRQ trouble?) >>>>>> [ 823.273217] playback write error (DMA or IRQ trouble?) >>>>>> >>>>>> I know this issue on some Haswell ULT boards(STP/WTM1) because they >>>>>> are not stable, and it's better to use latest BIOS image(V131 or >>>>>> later). >>>> >>>> btw, did you do any suspend/resume operation before the audio playback test? >>>> if not, it's a new case. i found the issue only on some particular >>>> boards after suspend/resume. >>> >>> The issue is 100% reproducible without suspend/resume. Just in case, I >>> tested after one suspend-resume cycle, it didn't fix the problem. >> >> On IRC (#intel-gfx) ohsix said that the bug >> (https://bugzilla.kernel.org/show_bug.cgi?id=60769) may be graphics >> related after all, but was too scared with the interrupt handling code >> there. The contents of /proc/interrupts are attached to the bug, but >> he said there is nothing interesting there. >> >> BTW I am surprised that the bug is still assigned to Jaroslav Kysela >> and not to Intel specialists (who are not even in the CC list of the >> bug). >> >> -- >> Alexander E. Patrakov > > broonie@kernel.org asked to CC: him to the thread. As far as I know, > Intel tried to reproduce this bug on their hardware and on some OEM > boards, but didn't try exactly the same motherboard, and reproduced > another bug (files play silently but IRQs seem to come correctly). > > It is interesting to know that today I found two people on FreeNode > IRC with the same board, and only one of them (rvalles) can reproduce > the IRQ problem. The other one (broonie) uses an older kernel > (Debian's 3.10-3, current unstable) and sees the "files play silently" > problem instead of the IRQ one. > > -- > Alexander E. Patrakov I have tried the Debian kernel on my Gentoo system and... HDMI audio works (but always plays both in the Dell monitor and the LG TV simultaneously). So this is a regression, will bisect. -- Alexander E. Patrakov