[x86-64] LibreELEC 12.2.1 - WiFi Chip cause crash

    Hi folks, I have an rtw88_8821ce WLAN chip on my mini PC.

    It is known to cause crashes in the area of energy management under Linux. Actually, all kernels from 6.10 onwards should be able to handle this well by now.

    Nevertheless, it causes a crash on my x86 hardware. Other Linux systems run fine, so I rule out a hardware error.

    Since I hardly ever get a dmesg, here is a journal excerpt directly after (attached).

    And an dmesg paste without wifi (disabled works fine)

    https://paste.libreelec.tv/genuine-cardinal.log

    Do you have any ideas?

  • Go to Best Answer

    I've now installed "LibreELEC (community): nightly-20250106-a4278b0 (Generic.x86_64)" seems do be stable now. 15min without crash and enabled wlan. :D

    maybe an backport for 12 posible? :blush:

    • Best Answer

    The normal approach for dealing with Realtek chips with power issues is disabling power management via modprobe.d options

    Happy to do a backport to an LE12 nightly (as we have no plans for more releases) if you can tell us the specific patch that contains the fix. Otherwise there's no plan to spend effort on figuring that out when updating to a current LE13 nightly fixes the issue.

    Yes, that's fine. It works under LE13 Nightly. If there are no plans to release LE12, I can ignore it.

    I'll consider it fixed in LE13 thanks to the newer kernel.

    Thanks anyway for the quick feedback. :)

    Hi there,
    Same boat here: my mini pc powered by an intel N150 includes a realtek 8821ce Wifi controller.
    Under Libreelec 12.2.1 after Wifi was activated the PC ended up locking (around a minute maybe).
    Loads of errors in dmesg output. Nothing else to do than a hard reboot.

    Works fine under nightly build LE 13 of 6th may; dmesg output is significantly different. However kernel modules are the same.
    I noticed however a high CPU usage from a (kernel ?) process irq_88.... (around 25%). That seems odd.