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Bug#970679: wireless-regdb: updating wireless-regdb to 2020.04.29-2~bpo10+1 makes AP mode impossible on ath10k wifi card

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  Bug#970679: wireless-regdb: updating wireless-regdb to 2020.04.29-2~bpo10+1 makes AP mode impossible on ath10k wifi card Félix Sipma <felix+debian@gueux.org> - 2020-09-21 13:40 +0200
    Bug#970679: wireless-regdb: updating wireless-regdb to 2020.04.29-2~bpo10+1 makes AP mode impossible on ath10k wifi card Romain Perier <romain.perier@gmail.com> - 2020-10-06 18:40 +0200

#68222 — Bug#970679: wireless-regdb: updating wireless-regdb to 2020.04.29-2~bpo10+1 makes AP mode impossible on ath10k wifi card

Package: wireless-regdb
Version: 2016.06.10-1
Severity: normal

Hello,

I have an ath10k wireless card, using QCA988X driver in firmware-atheros, which 
worked with wireless-regdb 2016.06.10-1. I tried to update linux-image-amd64 
from 4.19+105+deb10u5 to 5.7.10-1~bpo10+1, which resulted in an updated 
wireless-regdb (2020.04.29-2~bpo10+1). From then, The wifi card got impossible 
to use in 5Ghz AP mode (no frequency available). I tried to boot with 
4.19.0-10-amd64, and the same symptoms remained. Finally, downgrading 
wireless-regdb to 2016.06.10-1 made the wifi functionnal again.

Using firmware-atheros from buster-backports or not made no difference.

Regards,


-- System Information:
Debian Release: 10.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-10-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

wireless-regdb depends on no packages.

wireless-regdb recommends no packages.

Versions of packages wireless-regdb suggests:
ii  crda  3.18-1

-- no debconf information

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#68322

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On Mon, Sep 21, 2020 at 01:28:53PM +0200, Félix Sipma wrote:
> Package: wireless-regdb
> Version: 2016.06.10-1
> Severity: normal
> 
> Hello,
> 
> I have an ath10k wireless card, using QCA988X driver in firmware-atheros, which 
> worked with wireless-regdb 2016.06.10-1. I tried to update linux-image-amd64 
> from 4.19+105+deb10u5 to 5.7.10-1~bpo10+1, which resulted in an updated 
> wireless-regdb (2020.04.29-2~bpo10+1). From then, The wifi card got impossible 
> to use in 5Ghz AP mode (no frequency available). I tried to boot with 
> 4.19.0-10-amd64, and the same symptoms remained. Finally, downgrading 
> wireless-regdb to 2016.06.10-1 made the wifi functionnal again.
> 
> Using firmware-atheros from buster-backports or not made no difference.
> 
> Regards,
> 
> 
> -- System Information:
> Debian Release: 10.5
>   APT prefers stable-updates
>   APT policy: (500, 'stable-updates'), (500, 'stable')
> Architecture: amd64 (x86_64)
> 
> Kernel: Linux 4.19.0-10-amd64 (SMP w/4 CPU cores)
> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> Init: systemd (via /run/systemd/system)
> LSM: AppArmor: enabled
> 
> wireless-regdb depends on no packages.
> 
> wireless-regdb recommends no packages.
> 
> Versions of packages wireless-regdb suggests:
> ii  crda  3.18-1
> 
> -- no debconf information

Hi,

Could you, please, provide the output of 'dmesg' with the faulty kernel and the
faulty wiresless-regdb, it might give us more context and I am wondering if it
is not signing issue (perhaps not, just wondering, as we are now two
maintainers). Typically one dmesg with kernel 5.7.x and wireless-regdb 2020.04.29,
one dmesg with kernel 4.19.x and wireless-regdb 2020.04.29 and one dmesg when it
works, would be perfect.


Thanks,
Romain

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