** Tags added: fixed-kinetic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.14 in Ubuntu. https://bugs.launchpad.net/bugs/1969771
Title: Fix beacon loss for rtl8821ce on certain platforms Status in HWE Next: Fix Released Status in linux-oem-5.14 package in Ubuntu: Invalid Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux source package in Focal: Invalid Status in linux-oem-5.14 source package in Focal: Fix Released Status in linux-oem-5.17 source package in Focal: Invalid Status in linux source package in Jammy: Fix Released Status in linux-oem-5.14 source package in Jammy: Invalid Status in linux-oem-5.17 source package in Jammy: Fix Released Status in linux-oem-5.14 source package in Kinetic: Invalid Status in linux-oem-5.17 source package in Kinetic: Invalid Bug description: [SRU Justification] [Impact] On the intel ADL-U platform, the rtl8821ce suffers the beacon loss frequently because the driver doesn't received any beacon from AP. It causes the wpa-supplicant to reconnect again and again. Given it's critical to user experience and the urgent schedule, we need to SRU before getting approval. [Fix] Realtek release a fix to disable the PCI completion timeout on rtl8821ce so the PCI bus won't get stuck and can handed the received packets to the driver correctly. [Test Case] 1. Connect the WiFi to internet by selecting a internet connected AP 2. ping 8.8.8.8 to check the internet connectivity for at least 5 minutes. 3. Make sure no 'CTRL-EVENT-BEACON-LOSS' event reported from wpa_supplicant [Where problems could occur] Risk should be Low. It's only applied for RTL8821CE to disable the completion timeout capability. ========== Original Bug Description ========== [Summary] Wireless keeps connection and loses connection repeatedly. Below test cases are failed: - wireless/wireless_connection_wpa_n_nm_wlp3s0 - after-suspend-wireless/wireless_connection_wpa_bg_nm_wlp3s0 - after-suspend-wireless/wireless_connection_wpa_ac_nm_wlp3s0 - after-suspend-wireless/wireless_connection_open_n_nm_wlp3s0 - after-suspend-wireless/wireless_connection_open_bg_nm_wlp3s0 - after-suspend-wireless/wireless_connection_open_ac_nm_wlp3s0 Issue is also observed on WVA4-DVT2-C1 [Steps to reproduce] 1. Boot into OS 2. Connect network by wireless 3. Run 'sudo apt update' [Expected result] Wireless connection won't break [Actual result] Wireless loses the connection and then connect network, after a while, issue happens again. [Failure rate] 10/10 [Additional information] CID: 202202-29949, 202202-29947 SKU: WMVA5-DVT2-C1, WVA4-DVT2-C1 Image: canonical-oem-somerville-focal-amd64-20200502-85+fossa-olly-adl+X175 system-manufacturer: Dell Inc. system-product-name: Vostro 3520 bios-version: 0.5.4 CPU: 12th Gen Intel(R) Core(TM) i5-1235U (12x) GPU: 0000:00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:4628] (rev 0c) 0000:01:00.0 3D controller [0302]: NVIDIA Corporation Device [10de:1f9f] (rev a1) kernel-version: 5.14.0-1024-oem [Stage] Issue reported and logs collected at a later stage To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1969771/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp