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: Thu, 5 Sep 2013 09:03:29 +0600 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-qe0-f48.google.com (mail-qe0-f48.google.com [209.85.128.48]) by alsa0.perex.cz (Postfix) with ESMTP id 80A99265596 for ; Thu, 5 Sep 2013 05:03:30 +0200 (CEST) Received: by mail-qe0-f48.google.com with SMTP id t9so569112qeq.21 for ; Wed, 04 Sep 2013 20:03:29 -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: Takashi Iwai , "Lin, Mengdong" , "Alsa-devel@alsa-project.org" , Wang Xingchao , liam.r.girdwood@intel.com List-Id: alsa-devel@alsa-project.org 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