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After resuming my suspended PC, the wifi becomes unresponsive. The only
way to get it working again is to do a full reboot. I'm using Ubuntu
22.04 LTS Jammy and my wifi card is:
MEDIATEK Corp. MT7921K (RZ608) Wi-Fi 6E 80MHz using `mt7921e` driver.
This is what I can see in the logs:
kernel: mt7921e 0000:02:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000a
address=0x0 flags=0x0020]
kernel: mt7921e 0000:02:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000a
address=0x0 flags=0x0020]
kernel: mt7921e 0000:02:00.0: chip reset
kernel: mt7921e 0000:02:00.0: Message 0000004e (seq 7) timeout
kernel: mt7921e 0000:02:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000a
address=0x0 flags=0x0020]
kernel: mt7921e 0000:02:00.0: chip reset failed
kernel: mt7921e 0000:02:00.0: Failed to get patch semaphore
kernel: mt7921e 0000:02:00.0: Message 80000010 (seq 4) timeout
kernel: mt7921e 0000:02:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT
kernel: mt7921e 0000:02:00.0: chip reset failed
kernel: mt7921e 0000:02:00.0: Failed to get patch semaphore
kernel: mt7921e 0000:02:00.0: Message 80000010 (seq 12) timeout
kernel: mt7921e 0000:02:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000a
address=0x0 flags=0x0020]
kernel: mt7921e 0000:02:00.0: Failed to get patch semaphore
kernel: mt7921e 0000:02:00.0: Message 80000010 (seq 11) timeout
kernel: mt7921e 0000:02:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000a
address=0x0 flags=0x0020]
kernel: mt7921e 0000:02:00.0: Failed to get patch semaphore
kernel: mt7921e 0000:02:00.0: Message 80000010 (seq 10) timeout
kernel: mt7921e 0000:02:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000a
address=0x0 flags=0x0020]
kernel: mt7921e 0000:02:00.0: Failed to get patch semaphore
kernel: mt7921e 0000:02:00.0: Message 80000010 (seq 9) timeout
kernel: mt7921_start+0x25/0x70 [mt7921e]
kernel: mt7921e 0000:02:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000a
address=0x0 flags=0x0020]
kernel: PM: pci_legacy_suspend(): mt7921_pci_suspend+0x0/0x340 [mt7921e]
returns -110
kernel: mt7921e 0000:02:00.0: Message 40000007 (seq 2) timeout
kernel: mt7921_poll_rx+0x4f/0xe0 [mt7921e]
kernel: mt7921e 0000:02:00.0 wlp2s0: renamed from wlan0
NetworkManager: <info> [1653237444.7259] rfkill1: found Wi-Fi radio killswitch
(at /sys/devices/pci0000:00/0000:00:02.2/0000:02:00.0/ieee80211/phy0/rfkill1)
(driver mt7921e)
kernel: mt7921e 0000:02:00.0: Firmware init done
kernel: mt7921_pci_driver_init+0x23/0x1000 [mt7921e]
kernel: mt7921e 0000:02:00.0: ASIC revision: 79610010
I really appreciate someone's help to fix this behaviour.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment mt7921e network suspend-resume wifi
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mt7921e wifi fails to resume after suspend
https://bugs.launchpad.net/bugs/1975444
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