On 02.12.22 18:42, Maxime Bizon wrote: > On Fri, 2022-12-02 at 11:18 -0600, Dave Chiluk wrote: > >> The 6ghz band becomes disabled as soon as I upgrade to the 5.16+ >> linux-stable kernels. So from a user perspective this really is a >> case of a kernel upgrade breaking user-space. This is what led me >> down this rabbit hole here. > > FWIW > > I have the same issue on a Lenovo T14 gen2 laptop with built-in ax210 > card, and sold as Wifi-6E compliant. > > The exact patch you mention causes the issue, so it seems my bios does > not return the correct values either. That makes me (as a outsider that has no real knowledge about the inner workings of the Linux Wifi subsystem) wonder: Does it work in Windows? Because if that's the case I wonder how Windows ensures everything confirms to regulatory requirements & standards. If that handled on the software level if the info is missing in the firmware? Or is there a another place in the firmware structures where Windows looks for details (and we don't). Or is that a Linux-only machine that might even use a different firmware? Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) P.S.: As the Linux kernel's regression tracker I deal with a lot of reports and sometimes miss something important when writing mails like this. If that's the case here, don't hesitate to tell me in a public reply, it's in everyone's interest to set the public record straight.
