230531 Michael wrote:
> It seems you have the correct module for the mediatek driver installed,
> since lshw on gentoo shows it being used. What is not shown is the firmware.
> Now, to bottom out the firmware issue.
> You need to specify the firmware path in your kernel, as explained here.
> By default this would be under /lib/firmware/ :
> https://wiki.gentoo.org/wiki/Linux_firmware

/lib/firmware/ is the dir with firmware files.

> Hopefully, the requisite firmware file blobs will be present
> in the latest stable 'sys-kernel/linux-firmware' package,
> once you install it.

It is already installed (230404) , presumably as part of Stage 3.
That date shouldn't be too old.

> dmesg will reveal if these are/not being loaded.

'dmesg | grep firmware' shows  10  identical lines :

  Loading firmware : mediatek/WIFI_MT7921_patch_mcu_1_2_hdr.bin :
   failed with error-2 .

> you could keyword the trunk version hoping it contains what you need:
> 
>        **   99999999  *l^bstd [compress-xz compress-zstd initramfs 
> +redistributable savedconfig unknown-license] ["initramfs? ( redistributable 
> ) 
> ?? ( compress-xz compress-zstd )"]

I don't understand these lines (smile).

> Or, you could compare what firmware files are loaded in Mint/SR ISOs
> and copy these over to your Gentoo system for now

SR shows no record of loading via 'dmesg' ;
Mint ends with a lot of Bluetooth + mt7921e references.
Mint mentions a firmware " ____010000 " ( 4 underlines ).

> or you could fish around the Mediatek website for approp firmware files.

no sign of firmware files.

> Finally, set up a symlink from '/etc.init.d/net.wlp5s0'
> to '/etc/init.d/net.lo' or whatever your card is detected, if not wlp5s0.

i've created that link, but how is it supposed to help ?

> https://wiki.gentoo.org/wiki/Handbook:AMD64/Networking/Introduction

> and bring up your wireless network service:
>  'rc-service -v net.wlp5s0 start'

it gives "ERROR : fails to start".
 
> Besides wpa_supplicant, other packages required like 'net-misc/netifrc',
> 'net-misc/dhcpcd' should be installed,
> if they have not been brought in as dependencies already.

I've installed 'netifrc' ; 'dhcpcd' was installed long ago.

> Please post back your dmesg and any terminal output,
> if you are still having problems bringing up this wireless interface.
> PS. This page which may or may not be still relevant
> with the latest stable kernels, but you may want to take a look either way:
> https://wiki.gentoo.org/wiki/User:Chess/MT7921e

So no progress today.  I can try copying the firmware files from SR/Mint
-- everything under  /lib/firmware/  in SR/Mint & see if it helps.

Your final note was a link to someone's pains using mt7921e,
which he sad in the end was defective software.

Further advice is still very welcome (smile).

-- 
========================,,============================================
SUPPORT     ___________//___,   Philip Webb
ELECTRIC   /] [] [] [] [] []|   Cities Centre, University of Toronto
TRANSIT    `-O----------O---'   purslowatchassdotutorontodotca


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