From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3FA4F3D7D89; Mon, 20 Jul 2026 09:41:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784540463; cv=none; b=st5q5jO4xtpOg6tUq1DuWHLox6Pwt1t1YS8sfzcoRTyHGWVmrBnaclAkKBDVhSZ3cSwYadMA2koFENNzW9qiLzNgmGLbmmIcGv02FW83tyMoIJdG4D5L3PJbGcuXf3iBrrWFgol4ghlYNlfYFy4kcIHrN796t7TsP7/dpGjGRk4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784540463; c=relaxed/simple; bh=nXgTN4fVUXo0So/7EuJFprldWeNbukgV4to0lXCk/wI=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Cmlm7KwNYwAtz4+bdqWoo9GvdCXQCuOYXyOZCr2qerTzFXopy9xcl1HMakr8KVV44Yy4/EWVhnOUKVUp+hlKUKxfs5T/bYsWdF9Vw3ClKWx7T/WKUK2zUi0eH7eyVT/pt32nZkyhsZ/cZ3mr3KzrV6GTQl1H1BbiXgc3DnvOlFs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: 19ee1ede841f11f1aa26b74ffac11d73-20260720 X-CID-CACHE: Type:Local,Time:202607201735+08,HitQuantity:1 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.12,REQID:20f721f2-c77f-4ac7-9807-9ea183aea3ea,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:e7bac3a,CLOUDID:ec2af2f861e8247f2fdd921626e909bd,BulkI D:nil,BulkQuantity:0,Recheck:0,SF:80|81|82|83|102|817|865|898,TC:nil,Conte nt:-10|-8|-5|15|50,EDM:-3,IP:nil,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC :nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 19ee1ede841f11f1aa26b74ffac11d73-20260720 X-User: zhangheng@kylinos.cn Received: from [172.25.120.77] [(10.44.16.150)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA with TLSv1.3 TLS_AES_128_GCM_SHA256 128/128) with ESMTP id 18337804; Mon, 20 Jul 2026 17:40:53 +0800 Message-ID: <384611aa-8a63-4996-8f64-e951b2d2df69@kylinos.cn> Date: Mon, 20 Jul 2026 17:40:50 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] usb-audio: Fix boot-time crackling for Generic USB Audio device To: Takashi Iwai Cc: Gordon Chen , perex@perex.cz, tiwai@suse.com, kees@kernel.org, jussi@sonarnerd.net, hulianqin@vivo.com, i@rong.moe, g@b4.vu, cryolitia@uniontech.com, pav@iki.fi, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260713081048.189281-1-zhangheng@kylinos.cn> <18c1dc0246121271.5ea4dc9a201e9dce.cafe1c196d712416@GordonMsi> <87zezvx73v.wl-tiwai@suse.de> <878q77s6jp.wl-tiwai@suse.de> <9fc3da84-0985-4357-93bb-ce90a86b01de@kylinos.cn> <87tspuqi5m.wl-tiwai@suse.de> Content-Language: en-US From: Zhang Heng In-Reply-To: <87tspuqi5m.wl-tiwai@suse.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit > OK, if the workaround is no solid solution, it's not worth to take. > > Have you tried lowlatency=0 option? If it's an implicit fb and about > the playback, it might stabilize. > > > thanks, > > Takashi I tried lowlatency=0 but it didn't help. I am waiting for the customer to send a machine, and I will test again once it arrives.