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=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY 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 4521AC33C99 for ; Wed, 8 Jan 2020 03:08:39 +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 3B5772080A for ; Wed, 8 Jan 2020 03:08:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="MtGSYVsx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B5772080A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=compal.com 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 066721790; Wed, 8 Jan 2020 04:07:46 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 066721790 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1578452916; bh=JEFoMjcRodBPxqzFOVOzxpnNGcqMgqipSoAidmwWa7Q=; h=From:To:Date:References:In-Reply-To:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=MtGSYVsxYoR4CNWTMoa8G5P7t2MdmKz3U6EGePgQBV26VEIe/SdezDnaBB4m9dRUP 4QfHHTKtF8IDiQrn3VqJAww1QO577B9ZR2nYYcpn+eAq/Sgl6jlNPkDGCAhbw7tSoc ovEgnSxe9MfKbx4aueypjGqq2dGQSdn/GrkJFMPk= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 739CCF80149; Wed, 8 Jan 2020 04:07:45 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id A02A3F80159; Wed, 8 Jan 2020 04:07:43 +0100 (CET) Received: from tpecef02.compal.com (exmail3.compal.com [59.120.207.196]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 97BA8F8010B for ; Wed, 8 Jan 2020 04:07:36 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 97BA8F8010B X-UUID: 68e29ac4df144d6cbb5ae1ad152acb7a-20200108 Received: from tpembx01.compal.com [(10.110.15.26)] by tpecef02.compal.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.6 Build 0408 with TLS) with ESMTP id 316997330; Wed, 08 Jan 2020 11:07:20 +0800 Received: from TPEMBX03.compal.com (10.110.15.28) by TPEMBX01.compal.com (10.110.15.26) with Microsoft SMTP Server (TLS) id 15.0.995.29; Wed, 8 Jan 2020 11:07:19 +0800 Received: from TPEMBX03.compal.com (10.110.15.28) by TPEMBX03.compal.com (10.110.15.28) with Microsoft SMTP Server (TLS) id 15.0.995.29; Wed, 8 Jan 2020 11:07:18 +0800 Received: from TPEMBX03.compal.com ([fe80::dd13:fe1c:1008:7f]) by TPEMBX03.compal.com ([fe80::dd13:fe1c:1008:7f%16]) with mapi id 15.00.0995.028; Wed, 8 Jan 2020 11:07:18 +0800 From: To: , Thread-Topic: [alsa-devel] USB Type-C monitor flashes once when play a video file after unplug and re-plug the monitor Thread-Index: AdXB0nlM5qaLFlJOTlavFS+ZjDjiAwAAOfiAAKNroPAANtEAgAADOdOAACGLiTA= Date: Wed, 8 Jan 2020 03:07:17 +0000 Message-ID: References: <5aff22f1e36e484fa52e17c855e8ddc8@TPEMBX03.compal.com> <20200107172457.GA18938@nc-hades.jf.intel.com> In-Reply-To: Accept-Language: zh-TW, en-US Content-Language: zh-TW X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-originating-ip: [10.110.15.241] X-TM-SNTS-SMTP: F27CE7B42A6455910C281FDBDB69FE9154D6439A1712855A52C8B77927B30E952000:8 Content-Type: multipart/mixed; boundary="_002_bbbfbfa04bd046c78bba621974c9186fTPEMBX03compalcom_" MIME-Version: 1.0 X-Content-Filtered-By: Mailman/MimeDel 2.1.15 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, 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: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" --_002_bbbfbfa04bd046c78bba621974c9186fTPEMBX03compalcom_ MIME-Version: 1.0 Content-Type: text/plain Hi Takashi Is the attachment what you suspect? That merged to our kernel v4.19 already, hav e any suggestions? Thanks. -----Original Message----- From: Takashi Iwai Sent: Wednesday, January 8, 2020 2:57 AM To: Nathan Ciobanu Cc: Kao. Lucien (TPE) ; Cheng. AJ (TPE) ; intel-gfx@lists.freedesktop.org; alsa-devel@alsa-project.org; Wang. CindyX T (TPE) ; Ye. Nelson (TPE) ; Yap. Shane (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 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 onc e I played music or video sound output through Dell S2718D Type-C monitor. It se ems had some fix in latest kernel. > > Takashi, can you point to the patch series you suspect may have fixed this iss ue? 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 monit or. > > > > > > 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. Th anks. > > > > > > 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 r eally mandatory. I'm wondering whether the recent write-sync change improves th e 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 > > ======================================================================= ======================================== This message may contain information which is private, privileged or confidential of Compal Electronics, Inc. If you are not the intended recipient of this message, please notify the sender and destroy/delete the message. 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