Re: mediatek mt7921u wifi issue with recent firmware-misc-nonfree upgrade

Hi

Files seem to have moved from /usr/lib to /lib.
https://packages.debian.org/sid/all/firmware-mediatek/filelist
https://packages.debian.org/bookworm-backports/all/firmware-mediatek/filelist

>From https://wiki.debian.org/UsrMerge
In February 2021, the Technical Committee has resolved that Debian
'bookworm' should support only the merged-usr root filesystem layout,
dropping support for the non-merged-usr layout. (978636
<https://bugs.debian.org/978636>)

Could this be an issue? Do you have a lib -> usr/lib  symlink?
How/where does the kernel locate firmware?

Regards,
Jan


On Sat, 7 Sept 2024 at 14:03, Jochen Bartl <[email protected]> wrote:

> Hi everyone,
>
> I have an issue with my Mediatek usb wifi nic since the last upgrade of
> the firmware-misc-nonfree package.
>
> It seems like the nic can no longer be initialized and hence is not
> present in the system (ip link, ...) after the boot.
>
> The package version that broke the NIC functionality is
> 20240709-2~bpo12+1. Rolling back to the old 20230625-2 via
> snapshot.debian.org fixed the issue.
>
> Kernel messages:
>
> kernel: mt7921u 3-6.3:1.0: Message 00000010 (seq 8) timeout
> kernel: mt7921u 3-6.3:1.0: Failed to get patch semaphore
>
> System details:
>
> * Debian Bookworm / amd64
> * Kernel: linux-image-amd64 6.10.6-1~bpo12+1
> * Wifi NIC: Fenvi FU-AX1800 - https://fenvi.com/product_detail_44.html
> * CPU: Intel i7 11th gen
>
> Don't hesitate to ask if you want me to run some more tests. Please find
> a longer version of the kernel log attached to this email.
>
> Regards,
>
> Jochen
>
>