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So I built a new rig, with amd cpu/gpu and mobo as MSI TOMAHAWK B650 WIFI PLUS, everything worked fine in begining, but after some time, somewhy wifi stopped working, I checked, and found that wifi chipset disappeared from ifconfig output somehow, and also rfkill list output is showing empty.
It came back somehow after a few days, i restarted and updated system multiple times in between, but what exactly triggered it coming back, im not sure.
this time it happened again, and im stuck.
any idea why , and how to debug it , ethernet still works?
Last edited by jerryDaBaaws (2023-02-27 08:24:40)
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Do you have a parallel windows installation?
Does the NIC show up in lspci or lsusb?
Does it (or its bus ID) show up in the system journal?
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> Do you have a parallel windows installation?
no , just an arch install
> Does the NIC show up in lspci or lsusb?
i can see this output in lspci -k
0e:00.0 Network controller: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter
Subsystem: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter
Kernel driver in use: mt7921e
Kernel modules: mt7921edont think its here in lsusb
Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 003: ID 174c:3074 ASMedia Technology Inc. ASM1074 SuperSpeed hub
Bus 002 Device 002: ID 2109:0815 VIA Labs, Inc. USB3.0 Hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 009: ID 0db0:422d Micro Star International USB Audio
Bus 001 Device 008: ID 174c:2074 ASMedia Technology Inc. ASM1074 High-Speed hub
Bus 001 Device 006: ID 06cb:1595 Synaptics, Inc. KM-HIFI-384KHZ
Bus 001 Device 004: ID 1532:009c Razer USA, Ltd Razer DeathAdder V2 X HyperSpeed
Bus 001 Device 003: ID 14cd:6116 Super Top M6116 SATA Bridge
Bus 001 Device 015: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 014: ID 1462:7d75 Micro Star International MYSTIC LIGHT
Bus 001 Device 007: ID 2109:8817 VIA Labs, Inc. USB Billboard Device
Bus 001 Device 005: ID 4f53:514b Qwertykeys QK65 Hotswap
Bus 001 Device 002: ID 2109:2815 VIA Labs, Inc. USB2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub> in journalctl, these are the outputs i see, with entries
Feb 27 10:44:55 kushy-pc kernel: mt7921e 0000:0e:00.0: enabling device (0000 -> 0002)
Feb 27 10:44:55 kushy-pc kernel: mt7921e 0000:0e:00.0: ASIC revision: 79220010
Feb 27 10:44:58 kushy-pc kernel: mt7921e 0000:0e:00.0: Message 0004008a (seq 1) timeout
Feb 27 10:45:01 kushy-pc kernel: usb 1-7: device descriptor read/64, error -110
Feb 27 10:45:02 kushy-pc kernel: mt7921e 0000:0e:00.0: Message 0004008a (seq 2) timeout
Feb 27 10:45:05 kushy-pc kernel: mt7921e 0000:0e:00.0: Message 0004008a (seq 3) timeout
Feb 27 10:45:08 kushy-pc kernel: mt7921e 0000:0e:00.0: Message 0004008a (seq 4) timeout
Feb 27 10:45:11 kushy-pc kernel: mt7921e 0000:0e:00.0: Message 0004008a (seq 5) timeout
Feb 27 10:45:14 kushy-pc kernel: mt7921e 0000:0e:00.0: Message 0004008a (seq 6) timeout
Feb 27 10:45:16 kushy-pc kernel: usb 1-7: device descriptor read/64, error -110
Feb 27 10:45:17 kushy-pc kernel: usb 1-7: new high-speed USB device number 11 using xhci_hcd
Feb 27 10:45:18 kushy-pc kernel: mt7921e 0000:0e:00.0: Message 0004008a (seq 7) timeout
Feb 27 10:45:21 kushy-pc kernel: mt7921e 0000:0e:00.0: Message 0004008a (seq 8) timeout
Feb 27 10:45:22 kushy-pc kernel: usb 1-7: device descriptor read/64, error -110
Feb 27 10:45:24 kushy-pc kernel: mt7921e 0000:0e:00.0: Message 0004008a (seq 9) timeout
Feb 27 10:45:27 kushy-pc kernel: mt7921e 0000:0e:00.0: Message 0004008a (seq 10) timeout
Feb 27 10:45:27 kushy-pc kernel: mt7921e 0000:0e:00.0: hardware init failedOffline
Feb 27 10:45:27 kushy-pc kernel: mt7921e 0000:0e:00.0: hardware init failed
https://www.google.com/search?q=%22mt79 … timeout%22
https://github.com/openwrt/mt76/issues/690
MediaTek is known for its bugs. Check, that you are running kernel >= 5.18.
After this, you should unplug your pc from the outlet or turn of switch on the PSU. Then spam turn on button multiple times for several seconds to discharge capacitors on the motherboard. Wi-Fi controller will reset its internal state and will start working after this.
…
had the issue with kernel 6.0.10, turned off the laptop for 5mins then it worked again
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damn, this actually worked, thanks a lot ![]()
Last edited by jerryDaBaaws (2023-02-27 08:24:53)
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