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[24.31.245.230]) by smtp.gmail.com with ESMTPSA id a11sm70905otf.18.2021.04.14.11.01.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 14 Apr 2021 11:01:50 -0700 (PDT) Sender: Larry Finger Subject: Re: [Bug report] - RTL8821CE 802.11ac PCIe Wireless Network Adapter - Not handled properly by the rtw_8821ce dirver on Kernel 5.11.11 To: Michal TOMA , linux-wireless@vger.kernel.org References: <2562248.KvEgbkE9EU@linux-9g0r.site> From: Larry Finger Message-ID: Date: Wed, 14 Apr 2021 13:01:49 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.9.0 MIME-Version: 1.0 In-Reply-To: <2562248.KvEgbkE9EU@linux-9g0r.site> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On 4/14/21 4:12 AM, Michal TOMA wrote: > The RTL8821CE driver doesn't work on several recent kernels (probably since > 5.9). > > > journalctl -b | grep rtw > avril 10 14:18:41 localhost kernel: rtw_8821ce 0000:07:00.0: Firmware version 24.8.0, H2C version 12 > avril 10 14:18:41 localhost NetworkManager[682]: [1618057121.6199] rfkill2: found Wi-Fi radio killswitch (at /sys/devices/pci0000:00/0000:00:1d.4/0000:07:00.0/ieee80211/phy0/rfkill2) (driver rtw_8821ce) > avril 10 14:18:41 localhost kernel: rtw_8821ce 0000:07:00.0 wlp7s0: renamed from wlan0 > avril 10 14:18:42 localhost kernel: rtw_8821ce 0000:07:00.0: start vif 28:39:26:ab:b4:5d on port 0 > avril 10 14:18:42 localhost kernel: rtw_8821ce 0000:07:00.0: stop vif 28:39:26:ab:b4:5d on port 0 > avril 10 14:18:42 localhost kernel: rtw_8821ce 0000:07:00.0: start vif 5a:f0:11:63:85:65 on port 0 > avril 10 14:25:35 Host-001 kernel: rtw_8821ce 0000:07:00.0: stop vif 5a:f0:11:63:85:65 on port 0 > avril 10 14:25:35 Host-001 kernel: rtw_8821ce 0000:07:00.0: start vif 32:45:38:02:34:09 on port 0 > avril 10 14:32:28 Host-001 kernel: rtw_8821ce 0000:07:00.0: stop vif 32:45:38:02:34:09 on port 0 > avril 10 14:32:28 Host-001 kernel: rtw_8821ce 0000:07:00.0: start vif c2:5c:03:32:bc:19 on port 0 > avril 10 14:39:21 Host-001 kernel: rtw_8821ce 0000:07:00.0: stop vif c2:5c:03:32:bc:19 on port 0 > avril 10 14:39:21 Host-001 kernel: rtw_8821ce 0000:07:00.0: start vif de:9c:ac:b2:58:ae on port 0 > avril 10 14:46:14 Host-001 kernel: rtw_8821ce 0000:07:00.0: stop vif de:9c:ac:b2:58:ae on port 0 > avril 10 14:46:14 Host-001 kernel: rtw_8821ce 0000:07:00.0: start vif 46:5c:c2:91:f8:7f on port 0 > ... > And continues like this indefinitely > > uname -a > Linux Host-001 5.11.11-1-default #1 SMP Tue Mar 30 17:57:52 UTC 2021 (dbc4a02) x86_64 x86_64 x86_64 GNU/Linux > > > rfkill list > 0: ideapad_wlan: Wireless LAN > Soft blocked: no > Hard blocked: no > 1: ideapad_bluetooth: Bluetooth > Soft blocked: no > Hard blocked: no > 2: phy0: Wireless LAN > Soft blocked: no > Hard blocked: no > Please copy file dmesg.txt from 'dmesg > dmesg.txt' to some pastebin that I can access. The sending of only lines with rtw in them may miss some valid information. Larry