On Mon, 2023-08-14 at 11:52 +0200, Emmanuel Mazurier wrote: > > Hello, > After a Debian 11 update, new header was installed : 5.10.0-24-amd64, > and after upgrading rtw89 firmware, the driver was not recognized by > the system. > > Dmesg error : > rtw89core: loading out-of-tree module taints kernel. > rtw89_8852ae 0000:09:00.0: not mfw format > rtw89_8852ae 0000:09:00.0: failed to recognize firmware elements With these errors, it seems like you installed the latest wireless-next kernel (aka kernel 6.6-rc), but your firmware is the oldest firmware that we used it in development stage. Please provide below information to diagnose this problem. 1. kernel version you are using $ uname -a 2. firmware you are using $ ls -al /lib/firmware/rtw89/rtw8852a_fw.bin $ md5sum /lib/firmware/rtw89/rtw8852a_fw.bin > rtw89_8852ae 0000:09:00.0: failed to setup chip information > rtw89_8852ae: probe of 0000:09:00.0 failed with error -22 > > I have installed the firmware-realtek package too. > > Do you have any idea about the problem ? I can't use wifi for the moment. A possible fix is to update firmware to the latest that you can download it via: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/rtw89/rtw8852a_fw.bin I will also send a patch to be backward compatible with the old firmware if this problem is resolved. Ping-Ke