Arch Linux

pe200012

Member

Registered: 2024-04-10

Posts: 3

[Solved] Laptop WIFI (PCIe, USB) basically broken

Hi,

I just bought a new laptop a few days ago. It's: Mechrevo WuJie 14 Pro, AMD R7 8845HS, Intel AX200 (rev 1a), etc. I miragted my old ArchLinux(6.8.4-zen1-1-zen) installation to the laptop, replacing preinstalled Windows partition.

And here comes the problems: 1) the PCIe wireless card was hard blocked as shown in rfkill list, both in LiveISO and the actual system; 2) USB wireless card is working, but only in iwctl. NetworkManger gives me "Connection 'somenetwork' is not available on device wlan1 because device is not available "

Regarding the PCIe card: I've tried reinstalling Windows and have disabled its fast-boot option. Did not work. The card is working fine on Windows but not the case in Arch. I've also tried taking out the battery as mentioned here, still no luck. There's no option for enabling/disabling WIFI in BIOS, and no hardware button for such purpose as well.

rfkill list all shows:

1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: yes
2: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
4: hci1: Bluetooth
        Soft blocked: no
        Hard blocked: no
5: phy2: Wireless LAN
        Soft blocked: no
        Hard blocked: no

phy0: AX200, phy2: USB WIFI adapter

dmesg |grep iwlwifi returns nothing.
----------------------------------------------------
EDIT: after reboot, it now gives:

[    2.125685] iwlwifi 0000:02:00.0: Detected crf-id 0x3617, cnv-id 0x100530 wfpm id 0x80000000
[    2.125719] iwlwifi 0000:02:00.0: PCI dev 2723/0084, rev=0x340, rfid=0x10a100
[    2.128601] iwlwifi 0000:02:00.0: TLV_FW_FSEQ_VERSION: FSEQ Version: 89.3.35.37
[    2.128754] iwlwifi 0000:02:00.0: loaded firmware version 77.ad46c98b.0 cc-a0-77.ucode op_mode iwlmvm
[    2.226030] iwlwifi 0000:02:00.0: Detected Intel(R) Wi-Fi 6 AX200 160MHz, REV=0x340
[    2.235033] iwlwifi 0000:02:00.0: reporting RF_KILL (radio disabled)
[    2.400026] iwlwifi 0000:02:00.0: Detected RF HR B3, rfid=0x10a100
[    2.478702] iwlwifi 0000:02:00.0: base HW address: f8:fe:5e:73:7d:4b

----------------------------------------------------
ip a returns:

...
6: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether f8:fe:5e:73:7d:4b brd ff:ff:ff:ff:ff:ff
...
9210: wlan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 90:de:80:01:9d:3b brd ff:ff:ff:ff:ff:ff

Regarding the USB wireless adapter: I have two USB adapters currently(chips: MT7612UN, RTL8822BU). Both of them have the same issue mentioned above. Since they both use in-kernel drivers, driver failure is unlikely. So...I have no idea what's going on.

Any help would be appreciated!

Last edited by pe200012 (2024-04-25 10:03:07)

pe200012

Member

Registered: 2024-04-10

Posts: 3

Re: [Solved] Laptop WIFI (PCIe, USB) basically broken

Ok, rmmod iwlmvm gets USB adapter back to normal, not sure why...

pe200012

Member

Registered: 2024-04-10

Posts: 3

Re: [Solved] Laptop WIFI (PCIe, USB) basically broken

I'm going to mark this as "Solved" though I don't figure out the problem with ax200.

For anyone who has the same problem with me: Try buying a new PCIe wireless card and replacing the original one!