** Changed in: linux-firmware (Ubuntu Jammy)
Status: New => In Progress
** Changed in: linux-firmware (Ubuntu Lunar)
Status: New => In Progress
** Changed in: linux-firmware (Ubuntu Mantic)
Status: New => In Progress
** Changed in: linux-firmware (Ubuntu Noble)
Status: New => In Progress
** Changed in: linux-firmware (Ubuntu Jammy)
Importance: Undecided => High
** Changed in: linux-firmware (Ubuntu Lunar)
Importance: Undecided => High
** Changed in: linux-firmware (Ubuntu Mantic)
Importance: Undecided => High
** Changed in: linux-firmware (Ubuntu Noble)
Importance: Undecided => High
** Changed in: linux-firmware (Ubuntu Jammy)
Assignee: (unassigned) => You-Sheng Yang (vicamo)
** Changed in: linux-firmware (Ubuntu Lunar)
Assignee: (unassigned) => You-Sheng Yang (vicamo)
** Changed in: linux-firmware (Ubuntu Mantic)
Assignee: (unassigned) => You-Sheng Yang (vicamo)
** Changed in: linux-firmware (Ubuntu Noble)
Assignee: (unassigned) => You-Sheng Yang (vicamo)
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-firmware in Ubuntu.
https://bugs.launchpad.net/bugs/2048977
Title:
WCN6856 Wi-FI Unavailable and no function during suspend stress
Status in HWE Next:
New
Status in linux-firmware package in Ubuntu:
In Progress
Status in linux-firmware source package in Jammy:
In Progress
Status in linux-firmware source package in Lunar:
In Progress
Status in linux-firmware source package in Mantic:
In Progress
Status in linux-firmware source package in Noble:
In Progress
Bug description:
Due to a known silicon limitation, the following sequence is needed
while initialing the PCIE device on a certain devices with ASMedia
chipset involved:
1. 'hot reset' assert
2. 2nd PCIe reset' assert
3. Asmedia 'hot reset' deassert
4. PT21 GPIO13 2nd PCIe reset' deassert.
In certain caes, the WIFI link training failed while system resumes
from suspend.
This can be reproduced with suspend/resume stress test.
$ checkbox-cli run com.canonical.certification::stress-
suspend-30-cycles-with-reboots-automated
The proposed fixes are:
*
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=17509e53b97baaefeb287b98d3358da8a6e1c199
- This FW include this LP ticket issue fix
*
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=324cc56975d7b5a375259a49667c24f2f5a4c8fe
- The FW is to support new China regulatory support.
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/2048977/+subscriptions
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