From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.17]) (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 020EE341649; Mon, 5 Jan 2026 11:19:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767611981; cv=none; b=Xdi/Mj2m/EaPLithDKctdqHehUm2ZA4rt+bioW3c/J/w0rWFS0B3HEeuGrwEWKolffLBLL9b6uV3LC1Qt1qvpGsxLwoqZCvxNtKYuIKMfFi5+f5q1vPCez9zdFp7cIvK4nTDdIA544IJ5moMeqgpN3w5+CiDsg0i1VRhsJr+UTM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767611981; c=relaxed/simple; bh=eDe/Wsp6h5jAODIem5skI8YFYYSm1LfKln4/J1hHY0s=; h=Date:From:To:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=egPSsZWhGJd07st5rCfWrpaqf7fUcDWQdwym65iwQbd870AKsSBCZiVpgdAsN3FKv9IFzbRABadn2b2CfJP3AkuEKT5J6qucQEu9JQ0Oz2zVyqnatptHWmyhlt/H3kktuuPMWCZHcIVCcqbBhnnduIhws4usr6IxrMiVdlNJls4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=HK50Lc86; arc=none smtp.client-ip=198.175.65.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="HK50Lc86" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1767611980; x=1799147980; h=date:from:to:subject:message-id:references:mime-version: in-reply-to; bh=eDe/Wsp6h5jAODIem5skI8YFYYSm1LfKln4/J1hHY0s=; b=HK50Lc86W4u5Wydyjq9Jajlpwf8jJetaBZ61N41ggz+3BzkkZ/ZDSokE 7SLL9k3DbIkuitS3poeW+Sw7cwQpcux5NVfUBEgWzakCYUt/iwORZ6rkm xWy30U745zXIFjDoN7OlznxjQ0V/XClIfn3ABZmd7rNw0baQHlxFkK/Kh ysFe6yUZa35aun7JyL3os55FPBZJZibmOOhXCv7Bgqmf48b5k+rOx60NS fchFc3CfSN4FF8k9j1mWo6Xgumf4PK+WJf1s8AwiYxVPjSasvx2Swu9fY 4Al4CBQduidarzWBF6Tig66nmTbzGk3+V7gEQ7xljJx4/BPjoPDt6qR9h Q==; X-CSE-ConnectionGUID: g8/CdkZfS92ram7VZP2Quw== X-CSE-MsgGUID: Mdhhi87aQv6GqibhcJeOMA== X-IronPort-AV: E=McAfee;i="6800,10657,11661"; a="68956322" X-IronPort-AV: E=Sophos;i="6.21,203,1763452800"; d="scan'208";a="68956322" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa109.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jan 2026 03:19:39 -0800 X-CSE-ConnectionGUID: angFW0sKTLGhlMQ2jMBppg== X-CSE-MsgGUID: FRy2L2MxRyaH0+XV65BXKA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,203,1763452800"; d="scan'208";a="202384903" Received: from black.igk.intel.com ([10.91.253.5]) by orviesa007.jf.intel.com with ESMTP; 05 Jan 2026 03:19:38 -0800 Received: by black.igk.intel.com (Postfix, from userid 1001) id C98B395; Mon, 05 Jan 2026 12:19:35 +0100 (CET) Date: Mon, 5 Jan 2026 12:19:35 +0100 From: Mika Westerberg To: "Chia-Lin Kao (AceLan)" , Mario Limonciello , Andreas Noever , Mika Westerberg , Yehezkel Bernat , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Sanath.S@amd.com, "Lin, Wayne" Subject: Re: [PATCH] [RFC] thunderbolt: Add delay for Dell U2725QE link width Message-ID: <20260105111935.GM2275908@black.igk.intel.com> References: <5d7f2661-f02b-4985-b438-196b48c10237@amd.com> <20251218072125.GU2275908@black.igk.intel.com> <6inne3luvw4ot3wqnsaw3gzhlxtd4756i465oto6so5ox3syxp@kibuv4vhvexx> <20251218102021.GV2275908@black.igk.intel.com> <20251230073011.GD2275908@black.igk.intel.com> <7u6z5gp5ma2jg5zzxniupu4zuipjgxgnjydltx5cntikjtf3ww@qb62nuy7jsfk> <20251231060333.GK2275908@black.igk.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: On Fri, Jan 02, 2026 at 10:03:12AM +0800, Chia-Lin Kao (AceLan) wrote: > > You only have one of those monitors? It would be good to check with another > > if it has the same issue. I have GR reference device here which is what > > this monitor is based on but I don't see any unplugs or link issues. I will > > ask around if we have somewhere this monitor. > > Here is another BenQ 5k thunderbolt 4 monitor, and I can't reproduce > the issue with this monitor, even with the AMD machine. > > https://people.canonical.com/~acelan/bugs/tbt_call_trace/intel/merged_6.18.0-d358e5254674+.benq.out Okay thanks! We have one Dell GR based monitor here (not the same as yours) and a Lenovo GR based one. I asked the folks to try to repro the issue and will share the results once I get them.