Just came across this on Arch Forums.
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i Have Broadcom WLAN card as described below:
02:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4313 802.11bgn Wireless Network Adapter (rev 01)
Subsystem: Askey Computer Corp. BCM4313 802.11bgn Wireless Network Adapter
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at 94400000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [58] Vendor Specific Information: Len=78 <?>
Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [d0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [13c] Virtual Channel
Capabilities: [160] Device Serial Number 00-00-df-ff-ff-00-e8-39
Capabilities: [16c] Power Budgeting <?>
Kernel driver in use: wl
Kernel modules: bcma, wl
luckyfy i have snapshot created by timeshift and i can restore to previous state via timeshift yesterday.
I donât know whatâs going on. . . maybe someone can help me. I havenât a clue about my build in wifi wlan chipset on my MSI motherboard. I reinstalled EndeavourOS from scratch and the latest kernel 6.6-5 arch 1-1 was installed from the start after finishing the installation. I had the same problem with shutdown . . . the terminal line code stopped at wpa_supplicant and network manager and started the clock trying to shut down the system to no avail. So I installed LTS 6.1.66 and same problem the terminal line code stated that the kernel was not tainted. After 6 minutes the system went to power off mode and then just sat there once again waiting for wpa-supplicant and networkmanager to shut down.
Any help would be appreciated.
Rich;)
Network controller [0280]: MEDIATEK Corp. MT7921K (RZ608) Wi-Fi 6E 80MHz [14c3:0608]
DeviceName: RTL8111E Giga LAN
Subsystem: MEDIATEK Corp. MT7921K (RZ608) Wi-Fi 6E 80MHz [14c3:0608]
Flags: bus master, fast devsel, latency 0, IRQ 129, IOMMU group 15
Memory at 7e10100000 (64-bit, prefetchable) [size=1M]
Memory at 7e10200000 (64-bit, prefetchable) [size=16K]
Memory at 7e10204000 (64-bit, prefetchable) [size=4K]
Capabilities: [80] Express Endpoint, MSI 00
Capabilities: [e0] MSI: Enable+ Count=1/32 Maskable+ 64bit+
Capabilities: [f8] Power Management version 3
Capabilities: [100] Vendor Specific Information: ID=1556 Rev=1 Len=008 <?>
Capabilities: [108] Latency Tolerance Reporting
Capabilities: [110] L1 PM Substates
Capabilities: [200] Advanced Error Reporting
Kernel driver in use: mt7921e
Kernel modules: mt7921e
This is what Iâve got on my motherboard for wifi. . . .
Rich;)
This option didnât work for me - the system just stopped loading 
I can revert to previous state because previously i have install and create automated snapshot using timeshift.
Well, thatâs what I did. Rolled back a couple of days ago, excluded linux-headers and linux from updates, and updated everything else.
try the downgrade command
I did try the downgrade option. . . .it didnât work. . . Something I probably didnât do right.
Recently i have monitored gitlab arch linux fix incoming on linux-lts
I fired up two of my laptops using wireless wpa and it hung on shutdown, rolled back the kernel to the previous and everything worked as expected.
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The new kernel fixed the problems. At least on my machine.
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