All of lore.kernel.org
 help / color / mirror / Atom feed
From: Terry Barnaby <terry1@beam.ltd.uk>
To: Terry Barnaby <terry1@beam.ltd.uk>
Cc: linux-dvb@linuxtv.org
Subject: Re: [linux-dvb] Twinhan VisionPlus DVB-T Card not working
Date: Fri, 21 Nov 2008 10:19:14 +0000	[thread overview]
Message-ID: <49268B22.5040501@beam.ltd.uk> (raw)
In-Reply-To: <492568A2.4030100@beam.ltd.uk>

Terry Barnaby wrote:
> Hi,
> 
> I am having a problem with the latest DVB drivers.
> I have a Twinhan VisionPlus DVB-T card (and other DVB cards) in my
> MythTv server running Fedora 8. This is running fine
> with the Fedora stock kernel: 2.6.26.6-49.fc8.
> 
> However, I have now added a Hauppauge DVB-S2 and so have been
> trying the latest DVB Mercurial DVB tree.
> This compiles and installs fine and the two DVB-T cards and the
> new DVB-S card are recognised and has /dev/dvb entries.
> The first DVB-T card, a Twinhan based on the SAA7133/SAA7135
> works fine but the Twinhan VisionPlus, which is Bt878 will not
> tune in.
> 
> Any ideas ?
> Has there been any recent changes to the Bt878 driver that could
> have caused this ?
> ...

I have been playing around with the bt8xx source code.
If I set "dst_algo = 1" in "bt8xx/dst.c" then my Twinhan VisionPlus
DVB-T appears to work.
This parameter appears to enable hardware rather than software tuning.
I assume there is some bug in the software tuning algorithm ...

What are the benefits of software tuning over hardware based tuning ?

Cheers



Terry

_______________________________________________
linux-dvb mailing list
linux-dvb@linuxtv.org
http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb

  reply	other threads:[~2008-11-21 10:19 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-20 13:39 [linux-dvb] Twinhan VisionPlus DVB-T Card not working Terry Barnaby
2008-11-21 10:19 ` Terry Barnaby [this message]
2008-11-21 10:47 ` [linux-dvb] [PATCH] " Terry Barnaby
2008-11-21 10:52   ` [linux-dvb] [PATCH] Take 2: " Terry Barnaby
2008-11-21 20:32     ` Manu Abraham
2008-11-22  7:19     ` [linux-dvb] [PATCH] Take 3: " Terry Barnaby

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=49268B22.5040501@beam.ltd.uk \
    --to=terry1@beam.ltd.uk \
    --cc=linux-dvb@linuxtv.org \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.