Public bug reported:
*1. Problem Overview:**
WiFi connection fails after resuming from suspend (suspend-to-RAM / S3).
The adapter is visible but does not scan for networks and cannot
connect. WiFi functionality is only restored after a complete shutdown
(cold boot); a simple reboot (warm boot) is not sufficient.
**2. Affected Hardware:**
* Laptop: Legion Pro 5 16ARX8 - Type 82WM - Model 82WM00ERUS
* WiFi Card: Realtek RTL8852CE PCIe 802.11ax Wireless Network Controller
* Identifiers (from lspci): [10ec:c852], Subsystem: [17aa:5852]
* Driver in use: rtw89_8852ce
**3. Affected Software:**
* Distribution: Ubuntu 24.04.2 LTS (noble)
* Current Kernel: 6.11.0-21-generic (problem also occurred with OEM kernel
6.11.0-1017-oem)
**4. Steps to Reproduce:**
1. Boot the system normally. WiFi connects and works correctly.
2. Suspend the system (e.g., via menu option or closing the lid).
3. Wait a few seconds.
4. Resume the system (e.g., open the lid or press the power button).
**5. Expected Result:**
WiFi should reconnect automatically or, at minimum, scan and display
available networks, allowing manual connection.
**6. Actual Result:**
The WiFi icon might be present, but no networks are detected or displayed.
Connection attempts fail. NetworkManager cannot initialize the interface
correctly.
The `sudo dmesg` command after resume shows repeating errors similar to:
`rtw89_8852ce 0000:03:00.0: xtal si not ready(W): offset=90 val=10 mask=10`
`rtw89_8852ce 0000:03:00.0: mac init fail, ret:-110`
**7. Troubleshooting Attempts (Unsuccessful):**
* Disabled "Fast Startup" in Windows 11 (dual boot setup).
* Disabled WiFi power saving via NetworkManager (`wifi.powersave = 2`).
* Reinstalled the `linux-firmware` package.
* Tested the standard HWE (`-generic`) kernel instead of the OEM kernel.
* Tested the `rtw89_core.disable_aspm=Y` module parameter.
* Verified that BIOS/UEFI is up-to-date (checked via Windows).
* Manually reloading the kernel modules (`sudo modprobe -r rtw89_8852ce
rtw89_pci rtw89_core` followed by `sudo modprobe rtw89_8852ce`) after resuming
also fails to restore WiFi functionality.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2104321
Title:
[rtw89_8852ce] Resume from suspend fails with "xtal si not ready" and
"mac init fail"
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