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

[Jan Groenewald <jan.groenewald@gmail.com>]

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)

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 <jochen@verbosemo.de> 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