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Bug#1008973: marked as done (linux-image-amd64: Very slow wireless with MEDIATEK 7961)

Your message dated Sat, 10 Aug 2024 14:10:06 +0200 (CEST)
with message-id <20240810121006.B0D87BE2DE0@eldamar.lan>
and subject line Closing this bug (BTS maintenance for src:linux bugs)
has caused the Debian Bug report #1008973,
regarding linux-image-amd64: Very slow wireless with MEDIATEK 7961
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
1008973: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1008973
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-image-amd64
Version: 5.10.84-1
Severity: important
X-Debbugs-Cc: chantry.xavier@gmail.com

Dear Maintainer,

We have a problem with MEDIATEK 7961 wireless on Levono P14s with AMD
Ryzen.

With 5.10 kernel on debian stable the wireless just does not work, so we
installed kernel 5.16 from testing.

With kernel 5.16 the wireless is so slow that it's unusable, each
internet query takes several seconds. A simple ping to google.com varies
from 100ms to 3000ms.

With kernel 5.17 it's slighly better but the ping still goes up to
600ms.

With kernel 5.15 however, it works quite good, Internet is very usable,
ping varies from 3ms to 30ms.
(on the same network, the P14s with Intel wireless does better and is
always under 10ms).

It looks like big changes were made to the mt7921e driver in 5.16
according to Phoronix :
The Mediatek MT7921 WiFi driver has added support for 6GHz WiFi, active
state power management (ASPM), and other improvements.

And it looks like this caused a big regression with MEDIATEK 7961.

Besides the network performance problem on 5.16, suspend/resume is also
broken, while it works perfectly on 5.15.

-- System Information:
Debian Release: 11.2
  APT prefers stable
  APT policy: (900, 'stable'), (500, 'stable-updates'), (500, 'stable-security'), (1, 'experimental'), (1, 'unstable')
Architecture: amd64 (x86_64)

Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages linux-image-amd64 depends on:
ii  linux-image-5.10.0-10-amd64  5.10.84-1

linux-image-amd64 recommends no packages.

linux-image-amd64 suggests no packages.

-- no debconf information

--- End Message ---
--- Begin Message --- 
Hi

This bug was filed for a very old kernel or the bug is old itself
without resolution.

If you can reproduce it with

- the current version in unstable/testing
- the latest kernel from backports

please reopen the bug, see https://www.debian.org/Bugs/server-control
for details.

Regards,
Salvatore

--- End Message ---
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