Wi-Fi Adapter MT7612U stopped working after upgrade to Batocera 35

straynrg

Hi, today I updated to the latest stable release (Batocera 35 - 2022/09/20). Immediately after the upgrade, the USB-Stick was not detected anymore.

I am using a Wi-FI USB stickbased on the Mediathek M7612U chip, which is supported by the mainline kernel since version >=4.19 (https://docs.alfa.com.tw/Support/Linux/MT7612U/).

Are there any changes between the two stable versions that could explain this?

Atari

Logically one would conclude that it’s not actually related to whether or not the Linux kernel supports it or not. Have you tried experimenting with other variables? Such as the possibility the hardware has coincidentally stopped functioning?

straynrg

I just found out that the kernel module is blacklisted in /etc/modprobe.d/xone-blacklist.conf (The line “blacklist mt76×2u”). I removed that line, saved the file to the overlay and the wifi works.

Now the question is: Why is the module blacklisted in the first place?

Atari

straynrg There is not… at least in a fresh install of Batocera in x86_64. You can check which files are included in the file system by checking the fsoverlay: https://github.com/batocera-linux/batocera.linux/tree/master/board/batocera/fsoverlay
You’ll see there’s no /etc/modprobe.d/xone-blacklist.conf present.

Unless one particular package has been altered to add that file? Which I’m not sure why it would even be done like that as that’s really subtle.

So, if you have the time, could you try reflashing (maybe on a new card so you don’t lose anything) and check if the file is still present? If so, it’s worth making it into an issue report so it can get fixed.