RTL8852BE fails to power on: "xtal si not ready" on ASUS TUF GAMING B650-PLUS WIFI

[Jason Kakandris <ikakandris@gmail.com>]

System Info

Distro: Linux Mint 22.3 Zena (Ubuntu 24.04 base)
Kernels tested: 6.14.0-37-generic, 6.17.0-14-generic (same failure on both)
Motherboard: ASUS TUF GAMING B650-PLUS WIFI (Rev 1.xx)
BIOS: v3827 (Feb 2026)
CPU: AMD Ryzen 7 7700X
Driver: rtw89 v7.0 (git commit d2f175e
https://github.com/morrownr/rtw89/commit/d2f175eafa0a4ef9cc65e7073a77e60238cae614)
WiFi works in Windows: Yes


Problem
The RTL8852BE WiFi card fails to initialize with xtal si not ready error. No
wireless interface is created.


dmesg output

rtw89_8852be_git 0000:08:00.0: loaded firmware rtw89/rtw8852b_fw-1.bin
rtw89_8852be_git 0000:08:00.0: enabling device (0000 -> 0003)
rtw89_8852be_git 0000:08:00.0: xtal si not ready(R): offset=41
rtw89_8852be_git 0000:08:00.0: xtal si not ready(W): offset=90 val=10 mask=10
rtw89_8852be_git 0000:08:00.0: failed to power on
rtw89_8852be_git 0000:08:00.0: failed to setup chip information
rtw89_8852be_git 0000:08:00.0: probe with driver rtw89_8852be_git failed with
error -110


lspci

08:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8852BE
PCIe 802.11ax Wireless Network Controller [10ec:b852]
Subsystem: AzureWave RTL8852BE PCIe 802.11ax Wireless Network Controller
[1a3b:5471]

What I've tried

Kernel parameter pcie_aspm=off
Module parameters: disable_clkreq=Y disable_aspm_l1=Y disable_aspm_l1ss=Y
disable_ps_mode=y
Updated BIOS from v3057 to v3827
Updated firmware files via make install_fw
Tested on kernels 6.14 and 6.17 — same failure on both
In-kernel driver and morrownr out-of-tree driver — same failure
WiFi works fine in Windows on the same hardware