linux-wireless.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Christian Lamparter <chunkeey@googlemail.com>
To: "Szőts Ákos" <szotsaki@gmail.com>
Cc: linux-wireless@vger.kernel.org
Subject: Re: Realtek RTL8191SU really slow with „N” mode enabled
Date: Sat, 27 Jun 2015 19:00:31 +0200	[thread overview]
Message-ID: <1576201.5zzoPiW6A9@debian64> (raw)
In-Reply-To: <37780383.GGTrC2kAY2@linux-suse.hu>

Hello,

On Saturday, June 27, 2015 11:16:21 AM Szőts Ákos wrote:
> I have a "0bda:8172 Realtek RTL8191SU 802.11n WLAN Adapter” working
> - previously with kernel v4.0 staging driver r8712u,
> - and now with wireless kernel v4.1 driver rtl8192su (from 
> https://github.com/chunkeey/rtl8192su).
> 
> My problem is when, by default, the 802.11n mode is enabled, the USB dongle's 
> connection speed is only around 1 Mb/s (with both drivers). When I turn it off 
> with "options rtl8192su ht_enable=0" in its config file, I get my full internet 
> speed, about 30 Mb/s.

Wait! There isn't any ht_enable option for the rtl8192su(.ko) driver...?!

> I'm asking whether it's a problem in the firmware or somewhere in the driver 
> code? If it's the latter case and you're interested in, I would like to help 
> debugging the problem and help you to fix this issue.
Can't help you with debugging the problem as long as I can't reproduce the
issue. No idea if this is a hardware, firmware, driver, setup or some
kind of interaction issue. In my opinion: you simply disable HT, then you
just did take a feature away rather than dealing with anything. But, if
that's what you want: fine.

Note: I think the simplest solution would be to have a working reference.
If you are looking for a wifi usb-stick, ath9k_htc solutions are usually
the way to go.

Regards,
  Christian

      reply	other threads:[~2015-06-27 17:00 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-27  9:16 Realtek RTL8191SU really slow with „N” mode enabled Szőts Ákos
2015-06-27 17:00 ` Christian Lamparter [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1576201.5zzoPiW6A9@debian64 \
    --to=chunkeey@googlemail.com \
    --cc=linux-wireless@vger.kernel.org \
    --cc=szotsaki@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).