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LMDE6 started to drop Realtek wifi card (lemmy.ml)
submitted 2 years ago by to c/linux@lemmy.ml
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I've had LMDE6 installed since it's release day and everything has been fine. For the past week it's been dropping my wifi card randomly. It is not recognized by rfkill nor lspci after it happens. Only reboot helps.

Does anyone know why it might happen? Kernel is 6.1.0-21-amd64 but I don't know has the kernel been updated recently.

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[–] 4 points 2 years ago* (last edited 2 years ago)

Let me guess, Realtek

Edit:

What chipset?

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    [–] 3 points 2 years ago (1 child)

    I'd start with checking logs with journalctl as a privileged user. If the device disappears, there should be logs about it. Maybe that will point the way.

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    • [–] 3 points 2 years ago

    I had some hard to track down intermittent network issues when I upgraded from LMDE5 to LMDE6 - the solution was to get a newer kernel from backports - its fairly painless...

    https://forums.linuxmint.com/viewtopic.php?t=413995#:~:text=You%20get%20the%20kernel%20updates,using%20with%20command%20uname%20%2Dv.

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    [–] 3 points 2 years ago

    Which brand is it? I have an HP and have a similar problem, adding "pcie_aspm.policy=performance" to the kernel parameters mostly mitigates it but on Fedora like distros it may still have errors I don't know how to fix.

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    [–] 2 points 2 years ago (1 child)

    Your computer is going into s1 and the driver for your card can’t wake it back up.

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  • [–] [S] 2 points 2 years ago (1 child)

    No. It goes off when I'm using it actively. I've never had any issues getting back from hibernate.

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  • [–] 3 points 2 years ago*

    Damn, I thought I had you clocked.

    Getting hot maybe? Some of those baseband chips are downright tiny and can’t really dissipate the heat they build up under heavy use…

    Did you look at dmesg/journalctl to to see what the kernel says when it falls over?

    E: spelling/autocorrect

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    • [–] 1 point 2 years ago (1 child)

    How recent is your computer? Debian based distros, due to their focus on stability tend to have quite old packages, namely kernels

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    • [–] 1 point 2 years ago

    Kernel is 6.1.0-21-amd64 but I don’t know has the kernel been updated recently.

    zgrep linux-image /var/log/dpkg.log* can tell you more.

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