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sometimes, my IdeaPad loses wifi. I manage wireless in KDE, usually, and all gui tools act as though there is no wifi adapter.
ip addr will show no interface. iw devices shows nothing. rf-kill says wifi *is* totally unblocked.
the machine has an "airplane mode" hotkey, but toggling that does not bring it back, only effects bluetooth.
I can't post exact output because I'm using my phone for this but
dmesg | grep firmware reports errors loading the wifi firmware.
I had read that blacklisting the lenovo_ideapad module is supposed to work. however I've not done it since removing it on the fly leaves me with no keyboard.
I'm really sorry if this isn't much to go on, but I can't get to logs, etc from here.
eventually, after a number of reboots, the wireless comes back.
this happens on linux, linux-zen, and linux-lts and has been ongoing for a year's worth of kernel versions.
anyone else experience this?
Last edited by shoelesshunter (2022-03-18 11:18:08)
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Which IdeaPad? And can you figure out posting some logs or at least the dmesg output?
Unix? You can't say that on a kids' show!
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If your Ideapad has a Realtek Wi-FI adapter you might want to try disabling ASPM. You can do it through modprobe.d or passing a kernel parameter.
You can diagnose this error by:
1- Running lspci, and identifying your wireless adapter.
2- Using another distro with kernel 5.8.3+ might result in the same problem.
Pay attention to the note in the kernel bug post: if you can't boot a Windows installation for whatever reason, getting into the UEFI BIOS should be enough.
It worked in my ThinkPad L490, with a Realtek RTL8822BE.
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I've disabled ASPM. hopefully this will prevent the issue from returning.
a way to get the wifi back once it's been disabled was to go into the BIOS and toggle the wifi off and on again, boot, and it returns.
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