** Changed in: linux (Ubuntu Jammy)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1969771
Title:
Fix beacon loss for rtl8821ce on certain platforms
Status in HWE Next:
In Progress
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 Committed
Status in linux-oem-5.14 source package in Jammy:
Invalid
Status in linux-oem-5.17 source package in Jammy:
Fix Released
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
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