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Fri, 3 Jan 2020 09:57:03 +0800 Received: from TPEMBX01.compal.com ([fe80::1942:f41b:515b:f225]) by TPEMBX01.compal.com ([fe80::1942:f41b:515b:f225%16]) with mapi id 15.00.0995.028; Fri, 3 Jan 2020 09:57:03 +0800 From: To: , Thread-Topic: USB Type-C monitor flashes once when play a video file after unplug and re-plug the monitor Thread-Index: AdXB0nlM5qaLFlJOTlavFS+ZjDjiAw== Date: Fri, 3 Jan 2020 01:57:03 +0000 Message-ID: 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: 403C9FDEFFC975AC44920C8AA31028E8731995EBB058783C2FF706CCA0F669922000:8 Content-Type: multipart/mixed; boundary="_004_d7aba6970fbd48f2b32e2bc6d838ab20TPEMBX01compalcom_" MIME-Version: 1.0 X-Mailman-Approved-At: Fri, 03 Jan 2020 09:20:45 +0100 X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Cc: nathan.d.ciobanu@linux.intel.com, CindyXT_Wang@compal.com, Nelson_Ye@compal.com, Shane_Yap@compal.com, Lucien_Kao@compal.com, Evan_Tseng@compal.com Subject: [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" --_004_d7aba6970fbd48f2b32e2bc6d838ab20TPEMBX01compalcom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Sirs, Here is chromebook SW team from Compal=2E As the mail title, we hit issue that the external monitor will flash once = when play video after hot pluging=2E We can reproduce not only on chromebook but also ubuntu 16=2E04=2E There has higher failure rate with Dell Solomon dock and Dell S2718D = monitor=2E We found adding the delay in "sound/pci/hda/patch_hdmi=2Ec " can fix this = issue=2E(as the attachment) May need your help to review and advice=2E Thanks=2E Here is the issue number in gitlab for more detail=2E https://gitlab=2Efreedesktop=2Eorg/drm/intel/issues/318 AJ Cheng NID/NID1 e-mail: AJ_Cheng@compal=2Ecom Tel: +886-2-8797-8599 ext=2E 17561 Mobile : +886-932827829 COMPAL Electronics, Inc=2E --_004_d7aba6970fbd48f2b32e2bc6d838ab20TPEMBX01compalcom_ Content-Type: application/octet-stream; name="flash_once.diff" Content-Description: flash_once.diff Content-Disposition: attachment; filename="flash_once.diff"; size=593; 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charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel --_004_d7aba6970fbd48f2b32e2bc6d838ab20TPEMBX01compalcom_--