All commands were run from a root shell spawned from executing `sudo bash` as the user.

This is a guide on how to enable the `mt76x2u` driver on Bazzite. I recently needed a USB wifi dongle for a linux system and I purchased the PAU0D because of its wider recommendation as a plug&play solution with a driver already in the kernel. This was not my experience trying to get it to work with Bazzite. To solve this problem I went through the following process:



This guide was written with the following `rpm-ostree status` used on the example system.

bash-5.2# rpm-ostree status
State: idle
Deployments:
● ostree-image-signed:docker://ghcr.io/ublue-os/bazzite:stable
                   Digest: sha256:0ab926cdf8c1cb63029399242e95f2196bb2c720bb03cc5897148c2010638c7c
                  Version: 42.20250916.1 (2025-09-16T17:30:07Z)

  ostree-image-signed:docker://ghcr.io/ublue-os/bazzite:stable
                   Digest: sha256:cab7a959dde24e8f7d91ebf748afe7bb5a0c71a1ded75d275697ff35523296f5



Because the wireless transiever is not functioning we can look at the output of `modprobe -c` for all blacklisted entries that might be blocked from working.

bash-5.2# modprobe -c | grep blacklist
blacklist appletalk
blacklist ax25
blacklist batman_adv
blacklist ssb
blacklist bcma
blacklist b43
blacklist brcmsmac
blacklist brcmfmac
blacklist i8xx_tco
blacklist aty128fb
blacklist atyfb
blacklist radeonfb
blacklist i810fb
blacklist cirrusfb
blacklist intelfb
blacklist kyrofb
blacklist i2c_matroxfb
blacklist hgafb
blacklist nvidiafb
blacklist rivafb
blacklist savagefb
blacklist sstfb
blacklist neofb
blacklist tridentfb
blacklist tdfxfb
blacklist virgefb
blacklist vga16fb
blacklist viafb
blacklist hisax
blacklist hisax_fcpcipnp
blacklist snd_pcsp
blacklist chsc_sch
blacklist floppy
blacklist l2tp_eth
blacklist l2tp_netlink
blacklist l2tp_ppp
blacklist netrom
blacklist rds
blacklist rose
blacklist mt76x2u
alias symbol:rtw89_fw_blacklist_default rtw89_core

The entry `blacklist mt76x2u` is the one that applies to the chipset being used by the PAU0D. This is what we need to remove the blacklist for. 



What we need to find is where the backlist is being mentioned. Looking at the usual directory `/etc/modprobe.d` shows no files that blacklist this driver so we need to look elsewhere. Using `grep` on the `/lib` directory revealed the file we are looking for.

bash-5.2# grep -rnw /lib -e "blacklist mt76x2u"
/lib/modprobe.d/xone.conf:1:blacklist mt76x2u



Because the file `xone.conf` is installed by the ostree through a package on the read-only filesystem we cannot edit it directly. We can query the locally installed rpm packages for ones matching "xone" to find the packages that need to be removed.

bash-5.2# rpm -qa | grep xone
xone-kmod-common-1000.0.0.git.1114.82438c9a-1.fc42.noarch
kmod-xone-1000.0.0.git.1114.82438c9a-1.fc42.x86_64

This outputs two packages that contain "xone" in their names.



Trying to remove the packages individually does not work because of a dependency error. Because both packages are dependent on each other we must remove them in the same command otherwise the command will fail.

bash-5.2# rpm-ostree override remove kmod-xone-1000.0.0.git.1114.82438c9a-1.fc42.x86_64 xone-kmod-common-1000.0.0.git.1114.82438c9a-1.fc42.noarch

Reboot your system and the driver should be enabled.