Re: Problems with RTL8852BE PCIe 802.11ax Wireless Network Controller and Linux kernel 6.7.7-100.fc38.x86_64

[Kalle Valo <kvalo@kernel.org>]

Ping-Ke Shih <pkshih@realtek.com> writes:

> Plamen Dimitrov <plamen.dimitrov@pevogam.com> wrote:
>
>> With the newest Fedora kernel and firmware version I see different errors:
>> 
>> ┌May 14 10:20:28 vagrant.whitetree kernel: rtw89_8852be 0000:02:00.0: loaded firmware
>> rtw89/rtw8852b_fw-1.bin
>> │
>> │May 14 10:20:28 vagrant.whitetree kernel: rtw89_8852be 0000:02:00.0: enabling device (0000 -> 0003)
>> │
>> │May 14 10:20:28 vagrant.whitetree kernel: rtw89_8852be 0000:02:00.0: Firmware version 0.29.29.5
>> (da87cccd), cmd version 0, type 5
>> │
>> │May 14 10:20:28 vagrant.whitetree kernel: rtw89_8852be 0000:02:00.0: Firmware version 0.29.29.5
>> (da87cccd), cmd version 0, type 3
>> │
>> │May 14 10:20:28 vagrant.whitetree kernel: rtw89_8852be 0000:02:00.0: chip rfe_type is 1
>> │
>> │May 14 10:20:28 vagrant.whitetree kernel: rtw89_8852be 0000:02:00.0 wlp2s0: renamed from wlan0
>> │
>> │May 14 10:22:42 vagrant.whitetree kernel: rtw89_8852be 0000:02:00.0: failed to pre-release fwcmd
>> │
>> │May 14 10:22:42 vagrant.whitetree kernel: rtw89_8852be 0000:02:00.0: timed out to flush pci txch: 0
>> │
>> 
>> Any idea what could go wrong here? I have tried disabling via all before-mentioned methods and the network
>> card crashes on both older
>> and newer kernels despite all my efforts.
>
> What is the kernel version of the newest Fedora? I can try it in my side.
>
> It looks like firmware enters abnormal state, so my suggestion is to disable
> all power save functions to clarify the problems, but it seems like you
> have done all of them. 
>
> Is it possible to remove modules from /lib/modules/ ? Then insmod manually
> with module parameters to disable power save functions one-by-one? 

BTW it should be also possible to blacklist modules to avoid them being
loaded automatically. At least in Debian I do this:

$ cat /etc/modprobe.d/kvalo.conf 
blacklist ath11k_pci

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