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Re: wifi: mt76: mt7915e: mt7916 5GHz and 6GHz stopped working

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>  On 1/23/23 5:32 AM, Florian Schmidt wrote:
> 
> >    Hi all,
> >  
> >  Using current firmware and kernel 6.1 (or 6.2-rc4 from wireless-testing), the 5 and 6GHz stopped working on MT7916  (from AsiaRF). It used to work with older firmware and kernel.
> >  
> >  As a workaround, reverting to the older firmware seems to work. I can also get the 5GHz (but not the 6GHz!) to work building the driver using the workaround described on this dd-wrt bug report: https://github.com/openwrt/mt76/issues/720
> >  
> >  How can I be of any assist investigating and fixing this issue?
> >  
> >  Thanks,
> >  Florian
> >  
>  On 2023-01-23T15:43:08.000+01:00, Ben Greear <greearb@xxxxxxxxxxxxxxx> wrote:
>
> We have a patch to hack the driver to allow one or the other with new
> firmware.  Can post a version for 5.19 kernel soon, and we'll rebase on
> something newer at some point soon.
> 
> Looks like root cause is that the mtk firmware added restrictions and cannot
> be made to properly calibrate on both bands without a reboot.
> 
> Thanks,
> Ben
> 
> -- 
> Ben Greear <greearb@xxxxxxxxxxxxxxx>
> Candela Technologies Inc  http://www.candelatech.com

Thanks Ben, that's great news. Please let me know if I can be of any assist testing your patch.

Florian




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