From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90684C3F68F for ; Tue, 7 Jan 2020 18:58:20 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A968724676 for ; Tue, 7 Jan 2020 18:58:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="QQQBB7gk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A968724676 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 678801839; Tue, 7 Jan 2020 19:57:27 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 678801839 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1578423497; bh=gdmfdKjYvFGrMOL4PHskxRT5tGqtRrd/fQgRy/S57Ek=; h=Date:From:To:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=QQQBB7gkjJRnAPznntMV1wFUL+SRI/pZ02adjWvzhR5jM3vo8X9GY+l7h8KTaVLyv 8bhcsFsFNEcZdmN1e1uJRLADh9VvuqWbzMaXHazO7BNHV0DrPCdpuWuTP6uAhTknoi AAMk5tSvzhScyLo4KB/vG8y6nN5JhZ0UlpCpE9TU= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id D96F1F80140; Tue, 7 Jan 2020 19:57:26 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 5222EF8014A; Tue, 7 Jan 2020 19:57:25 +0100 (CET) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id F0BC7F8010B for ; Tue, 7 Jan 2020 19:57:21 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz F0BC7F8010B X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 27F8CAB7F; Tue, 7 Jan 2020 18:57:20 +0000 (UTC) Date: Tue, 07 Jan 2020 19:57:19 +0100 Message-ID: From: Takashi Iwai To: Nathan Ciobanu In-Reply-To: <20200107172457.GA18938@nc-hades.jf.intel.com> References: <5aff22f1e36e484fa52e17c855e8ddc8@TPEMBX03.compal.com> <20200107172457.GA18938@nc-hades.jf.intel.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Cc: AJ_Cheng@compal.com, alsa-devel@alsa-project.org, CindyXT_Wang@compal.com, intel-gfx@lists.freedesktop.org, Nelson_Ye@compal.com, Shane_Yap@compal.com, Lucien_Kao@compal.com, Evan_Tseng@compal.com Subject: Re: [alsa-devel] USB Type-C monitor flashes once when play a video file after unplug and re-plug the monitor X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On Tue, 07 Jan 2020 18:24:57 +0100, Nathan Ciobanu wrote: > > On Mon, Jan 06, 2020 at 08:08:04AM +0000, Lucien_Kao@compal.com wrote: > > Hi Takashi > > > > We verified on Ubuntu 19.10 with kernel 5.4.0.0-050400-generic (please refer to attachment), the result is positive which symptom doesn't happen anymore once I played music or video sound output through Dell S2718D Type-C monitor. It seems had some fix in latest kernel. > > Takashi, can you point to the patch series you suspect may have fixed this issue? The first suspect would be 2756d9143aa517b97961e85412882b8ce31371a6 ALSA: hda - Fix intermittent CORB/RIRB stall on Intel chips Takashi > > Thanks, > Nathan > > > > Thanks. > > > > > > -----Original Message----- > > From: Takashi Iwai > > Sent: Friday, January 3, 2020 5:16 PM > > To: Cheng. AJ (TPE) > > Cc: intel-gfx@lists.freedesktop.org; alsa-devel@alsa-project.org; nathan.d.ciobanu@linux.intel.com; Wang. CindyXT (TPE) ; Ye. Nelson (TPE) ; Yap. Shane (TPE) ; Kao. Lucien (TPE) ; Tseng. Evan (TPE) > > Subject: Re: [alsa-devel] USB Type-C monitor flashes once when play a video file after unplug and re-plug the monitor > > > > On Fri, 03 Jan 2020 02:57:03 +0100, > > wrote: > > > > > > Hi Sirs, > > > Here is chromebook SW team from Compal. > > > As the mail title, we hit issue that the external monitor will flash once when play video after hot pluging. > > > We can reproduce not only on chromebook but also ubuntu 16.04. > > > There has higher failure rate with Dell Solomon dock and Dell S2718D monitor. > > > > > > We found adding the delay in "sound/pci/hda/patch_hdmi.c " can fix > > > this issue.(as the attachment) May need your help to review and advice. Thanks. > > > > > > Here is the issue number in gitlab for more detail. > > > https://gitlab.freedesktop.org/drm/intel/issues/318 > > > > Could you check whether it still happens with the latest upstream kernel, at least 5.4.y, if it wasn't tested yet? > > > > I don't want to put a long delay just because of random reason unless it's really mandatory. I'm wondering whether the recent write-sync change improves the situation, so let's check the recent code. > > > > > > thanks, > > > > Takashi > > > > > > > > > > > > > > AJ Cheng > > > NID/NID1 > > > e-mail: AJ_Cheng@compal.com > > > Tel: +886-2-8797-8599 ext. 17561 > > > Mobile : +886-932827829 > > > COMPAL Electronics, Inc. > > > > > > [2 flash_once.diff ] > > > > > > _______________________________________________ > > > Alsa-devel mailing list > > > Alsa-devel@alsa-project.org > > > https://mailman.alsa-project.org/mailman/listinfo/alsa-devel > > _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel