** Tags added: oem-priority originate-from-1962681 somerville ** Description changed:
[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. [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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1969771 Title: Fix beacon loss for rtl8821ce on certain platforms To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1969771/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
