From: Stanislaw Gruszka <sgruszka@redhat.com>
To: Sergey Maranchuk <slav0nic0@gmail.com>
Cc: linux-wireless@vger.kernel.org
Subject: Re: rt2x00: 5Ghz signal power degradation with linux 5.2 kernel
Date: Thu, 29 Aug 2019 12:03:37 +0200 [thread overview]
Message-ID: <20190829100336.GA1930@redhat.com> (raw)
In-Reply-To: <CAJp6tx-RcubaTdL4tK1fuLv08s-pqU+RQz4m1mb1LRhg3625zw@mail.gmail.com>
On Thu, Aug 29, 2019 at 12:42:44PM +0300, Sergey Maranchuk wrote:
> I got some problem after upgrade kernel to 5.2 version (debian testing
> linux-image-5.2.0-2-amd64). 5Ghz client stopped to see AP.
> Some tests with 1metre distance between client-AP: 2.4Ghz -22dBm, for
> 5Ghz - 53dBm !, for longer distance (8m + walls) 2.4 - 61dBm, 5Ghz not
> visible.
> All works fine with kernel 4.19 and on windows 10, other devices also
> see AP without any problems with same distance.
After looking on the changlog most possible cause of it seems to be
commit 9ad3b55654455258a9463384edb40077439d879f:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9ad3b55654455258a9463384edb40077439d879f
Please try to revert it, and see if that improve rx signal level.
It that would not help, please try to narrow regression to two
consecutive kernel versions - it is: 4.19 -> 5.0 or 5.0 -> 5.1
or 5.1 -> 5.2 ?
Stanislaw
next prev parent reply other threads:[~2019-08-29 10:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAJp6tx-L0Q4_OaUp+xMod0jsLjAByqnbrvk=JbEq5LOxTdhr_g@mail.gmail.com>
2019-08-29 9:42 ` rt2x00: 5Ghz signal power degradation with linux 5.2 kernel Sergey Maranchuk
2019-08-29 10:03 ` Stanislaw Gruszka [this message]
2019-08-29 11:13 ` Sergey Maranchuk
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