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Re: searching for a specific kind of update

Message-ID <69659422@news.ausics.net> (permalink)
From Computer Nerd Kev <not@telling.you.invalid>
Subject Re: searching for a specific kind of update
Newsgroups comp.sys.raspberry-pi
References <10k0dd2$3v07j$1@dont-email.me> <10k1512$79g1$2@dont-email.me> <10k31f0$2d4hk$1@dont-email.me>
Date 2026-01-13 10:38 +1000
Organization Ausics - https://newsgroups.ausics.net

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bp@www.zefox.net wrote:
> Probably kernel modules. Right now lsusb identifies the wifi device as
> Bus 001 Device 040: ID 2357:012d TP-Link Archer T3U [Realtek RTL8812BU]
> 
> Running dmesg through grep wlan0 finds
> [1549933.629235] rtw_8822bu 1-1.5.2:1.0 wlan0: disabling HT/VHT/HE as WMM/QoS is not supported by the AP
> 
> The wifi dongle works but not well. When the wireless connection gets
> dodgy the entire USB system, including keyboard and trackpad, slow to
> the point that the machine can't be controlled and must be power-cycled.
> 
> If I try 
> bob@raspberrypi:~ $ sudo apt search rtw_8822bu
> Sorting... Done
> Full Text Search... Done
> 
> nothing is found, not even the existing driver.
> 
> Am I looking with the wrong tool?

"modinfo rtw_8822bu" will give you some info on the driver, though
no direct info on how it was installed. On Debian (not RPiOS) I see
there are similar modules starting with "rtw88_" installed with the
base, but no "rtw_8822bu.ko". rtw88 apparantly supports your
TP-Link Archer T3U RTL8812BU device:

https://deepwiki.com/lwfinger/rtw88/1.1-supported-hardware

Check if you have rtw88 drivers already installed:
 cd /lib/modules
 find -name 'rtw88*'

If so, maybe you just need to blacklist the rtw_8822bu driver to
use them? Unless the rtw88 driver is used already and it wrongly
logs as "rtw_8822bu", in which case the "modinfo rtw_8822bu"
command will fail, and look at the output of "lsmod" to see
exactly which "rtw" module/s are being used.

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searching for a specific kind of update bp@www.zefox.net - 2026-01-11 14:51 +0000
  Re: searching for a specific kind of update mm0fmf <none@invalid.com> - 2026-01-11 15:52 +0000
    Re: searching for a specific kind of update bp@www.zefox.net - 2026-01-11 16:50 +0000
  Re: searching for a specific kind of update Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-11 21:34 +0000
    Re: searching for a specific kind of update bp@www.zefox.net - 2026-01-12 14:45 +0000
      Re: searching for a specific kind of update Computer Nerd Kev <not@telling.you.invalid> - 2026-01-13 10:38 +1000
        Re: searching for a specific kind of update Computer Nerd Kev <not@telling.you.invalid> - 2026-01-13 10:46 +1000
      Re: searching for a specific kind of update Anssi Saari <anssi.saari@usenet.mail.kapsi.fi> - 2026-01-14 13:49 +0200
        Re: searching for a specific kind of update bp@www.zefox.net - 2026-01-14 16:13 +0000
          Re: searching for a specific kind of update Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-01-14 21:11 +0000

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