[Bug 2065128] Re: rtw89_8852ce - Lost WIFI connection after suspend

** Changed in: linux-oem-6.5 (Ubuntu Jammy)
Status: In Progress => Fix Committed

--
You received this bug notification because you are subscribed to linux
in Ubuntu.
Matching subscriptions: Bgg, Bmail, Nb
https://bugs.launchpad.net/bugs/2065128

Title:
rtw89_8852ce - Lost WIFI connection after suspend

Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-6.5 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Invalid
Status in linux-oem-6.5 source package in Jammy:
Fix Committed
Status in linux source package in Noble:
In Progress
Status in linux-oem-6.5 source package in Noble:
Invalid
Status in linux source package in Oracular:
In Progress
Status in linux-oem-6.5 source package in Oracular:
Invalid

Bug description:
[Impact]
Lost WIFI connection after suspend.
While this happen, the WIFI module couldn't detect any AP, re-enable module and reboot OS without any help.
There only way to get it back is cold boot.

[Fix]
Realtek provides a fix which has been included in rtw maintainer's tree
https://lore.kernel.org/linux-wireless/20240426061200.44262-1-pkshih@realtek.com/T/#mbfcb37c2fdc85ba280743f2b07fbf1fa8719eb79

[Test case]
1. Boot into OS
2. open terminal to keep checking dmesg or check the wifi connection from GUI
3. suspend/resume multiple times
4. check the wifi connection

[Where problems could occur]
What the 2 commits should be safe and won't introduce any regression.
1. Reset AFEDIG register before BB reset in power off sequence
2. Adjust power and clock parameters

To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/2065128/+subscriptions