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[23.128.96.18]) by mx.google.com with ESMTP id r17si4225926eda.525.2020.08.06.09.57.10; Thu, 06 Aug 2020 09:57:42 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@abv.bg header.s=smtp-out header.b=iSl01t9b; spf=pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=abv.bg Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729691AbgHFQz7 (ORCPT + 99 others); Thu, 6 Aug 2020 12:55:59 -0400 Received: from pop31.abv.bg ([194.153.145.221]:39572 "EHLO pop31.abv.bg" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729060AbgHFQlP (ORCPT ); Thu, 6 Aug 2020 12:41:15 -0400 Received: from smtp.abv.bg (localhost [127.0.0.1]) by pop31.abv.bg (Postfix) with ESMTP id 51B201805D3F; Thu, 6 Aug 2020 14:34:58 +0300 (EEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=abv.bg; s=smtp-out; t=1596713698; bh=fEanfQHTLeoCEFY2iUpK0DmYNAcIKLmOTVFmX1WtktY=; h=Subject:To:References:From:Date:In-Reply-To:From; b=iSl01t9b+qxRm01qqbR0HBZwuBuBQX9Czpsvoy418PyUFBGor3Pucdy35TH/TF2m0 KH5+OG5BUILlPRKp6ME5D1QpOMj2H11VxA3rm6i695U6Xi0soBd6zN4KO7Sb9JbZ8N WJCc/QVA/DS8T3e9t/qmQHhjcXq7mIAe2TKugyus= X-HELO: [192.168.1.110] Authentication-Results: smtp.abv.bg; auth=pass (plain) smtp.auth=buboleck@abv.bg Received: from 46-249-79-198.net1.bg (HELO [192.168.1.110]) (46.249.79.198) by smtp.abv.bg (qpsmtpd/0.96) with ESMTPSA (ECDHE-RSA-AES256-GCM-SHA384 encrypted); Thu, 06 Aug 2020 14:34:58 +0300 Subject: Re: RTW88 poor reception To: Larry Finger , linux-wireless@vger.kernel.org References: From: Dimitar Kosev Message-ID: <3fd0fde7-8423-f2db-7ffb-92720442fe94@abv.bg> Date: Thu, 6 Aug 2020 14:34:55 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Hello Larry, Please excuse my wrong wording. Below are outputs of iw dev wlan0 scan | egrep "signal|freq|SSID:", HUAWEIP10 is phone sitting next to the laptop: From rtw88:         freq: 2462         signal: -110.00 dBm         SSID: HUAWEIP10 From 8821ce:         freq: 2412         signal: -60.00 dBm         SSID: test         freq: 2412         signal: -85.00 dBm         SSID: TP-Link_B4EF         freq: 2412         signal: -82.00 dBm         SSID: Kokiche         freq: 2412         signal: -84.00 dBm         SSID: Crangon         freq: 2412         signal: -84.00 dBm         SSID: 1e541423         freq: 2412         signal: -88.00 dBm         SSID: Petya         freq: 2417         signal: -100.00 dBm         SSID: TP-Link_84B4         freq: 2427         signal: -100.00 dBm         SSID: gogolino         freq: 2432         signal: -79.00 dBm         SSID: A1_0440         freq: 2432         signal: -88.00 dBm         SSID: D_C         freq: 2437         signal: -72.00 dBm         SSID: TP-LINK_25         freq: 2437         signal: -86.00 dBm         SSID: Bi         freq: 2437         signal: -86.00 dBm         SSID: p@co         freq: 2447         signal: -88.00 dBm         SSID: DeathStar         freq: 2447         signal: -84.00 dBm         SSID: M-Tel_577D         freq: 2457         signal: -92.00 dBm         SSID: SHULEVI         freq: 2462         signal: -75.00 dBm         SSID: linksys         freq: 2462         signal: -48.00 dBm         SSID: HUAWEIP10         freq: 2457         signal: -86.00 dBm         SSID: lonibo         freq: 2462         signal: -59.00 dBm         SSID: GANEVI         freq: 2462         signal: -88.00 dBm         SSID: WNO         freq: 2472         signal: -92.00 dBm         SSID: Venci         freq: 5180         signal: -63.00 dBm         SSID: 5G         freq: 5200         signal: -86.00 dBm         SSID: bol-ml-yan         freq: 2412         signal: -87.00 dBm         SSID: RADULOV         freq: 2422         signal: -100.00 dBm         SSID: MLADOST         freq: 2427         signal: -80.00 dBm         SSID: Alex         freq: 2432         signal: -88.00 dBm         SSID: PetyaG         freq: 2437         signal: -84.00 dBm         SSID: Tenda_2E0238         freq: 2437         signal: -87.00 dBm         SSID: TP-LINK         freq: 2457         signal: -87.00 dBm         SSID: MT4209         freq: 2462         signal: -90.00 dBm         SSID: TatianaVulkova         freq: 2467         signal: -94.00 dBm         SSID: A1_A1D815         freq: 2472         signal: -86.00 dBm         SSID: All50_EXT         freq: 2417         signal: -88.00 dBm         SSID: Jamal         freq: 2432         signal: -86.00 dBm         SSID: VIVACOM_NET         freq: 2462         signal: -84.00 dBm         SSID: Vivacom_wifi         freq: 2462         signal: -88.00 dBm         SSID: TP-LINK_2136 Kind regards, On 8/5/20 10:13 PM, Larry Finger wrote: > On 8/5/20 2:00 AM, DImitar Kosev wrote: >> Hello, >> >> I have RTL8821CE card and with this driver I get poor perception on >> 5GHz (2-3 meters max to the router) and only 30-50cm to the router on >> 2.4GHz. I'm currently using this driver >> https://github.com/tomaspinho/rtl8821ce that works fine but I >> understand it will be deprecated once RTW88 goes into the kernel. > > I think the word you want is reception not perception. > > Please quantify how bad your reception really is by running the > following commands and posting the output: > > iw dev | grep Interface > sudo iw dev scan | egrep "signal|freq|SSID:" > > where is the interface name from the first command. > > Larry > >