All of lore.kernel.org
 help / color / mirror / Atom feed
From: Holger Rusch <holger@rusch.name>
To: linux-dvb@linuxtv.org
Subject: [linux-dvb] Quality with linux worse then with Windows
Date: Wed, 10 Dec 2008 10:23:13 +0100	[thread overview]
Message-ID: <493F8A81.7040802@rusch.name> (raw)
In-Reply-To: <cae4ceb0812091511s668dcc5fj793e7efc113fedfd@mail.gmail.com>

Hi,

i got a

TerraTec Cinergy DT USB XS Diversity
http://www.linuxtv.org/wiki/index.php/TerraTec_Cinergy_DT_USB_XS_Diversity

Running well with v4l (except the problems with the SB700 USB ports of 
my MB (disconnects here and then) => I am using a PCI USB Card with NEC 
Chipset and everything works well).

One thing that bugs me:

The recording/reception quality is much worse that with windows.

Using the Terratec Software i get 100% signal and 100% quality in 
check-mode and i NEVER got any frameloss or other picture/sound errors.

Using v4l and vdr i get mpeg-blocks here and then (5 minutes) and even 
soundloss or complete frame loss.

Femon-Plugin for VDR shows me STR/SNR/BNR values which are in the lower 
orange area, really close to red. => BAD!

What may be the cause?

This is set:
options dvb_usb_dib0700 force_lna_activation=1

Would be nice to see help to get 100% signal back.

Tu-Tu Yu schrieb:
> Hi Sirs:
> I am working on the Dvico HDTV7 Dual Express TV tuner card under Linux
> environment with kernel (2.6.26).
> When I check the snr value and signal status about every 10 seconds,
> it works fine in first few hours, but it will stop after about 12 - 24
> hours.
> I found out if i check the snr and signal status every second. It will
> stop after 5 hours.
> If I check the snr and siganl status every time it read PES, it will
> stop in few minutes.
> And it will show the message==> value too large for defined data type,
> Read -1 byte from DVR.
> Do you think it because the driver is not compatible with my Desktop?
> Or I shouldnt check the snr value?
> Thank you so much
> Tu Tu Yu
> tutuyu@usc.edu
> 
> _______________________________________________
> linux-dvb mailing list
> linux-dvb@linuxtv.org
> http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb


-- 
+ Contact? => http://site.rusch.name/ +

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

  reply	other threads:[~2008-12-10  9:23 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-09 23:11 [linux-dvb] Question about Dvico HDTV7 Dual Express tv tuner card Tu-Tu Yu
2008-12-10  9:23 ` Holger Rusch [this message]
2008-12-21 15:33   ` [linux-dvb] TerraTec Cinergy DT USB XS Diversity (Quality with linux worse then with Windows) Holger Rusch
2008-12-21 16:31     ` Devin Heitmueller
2008-12-21 18:31       ` Holger Rusch
2008-12-21 19:52         ` Devin Heitmueller
2008-12-22  7:39           ` Holger Rusch

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=493F8A81.7040802@rusch.name \
    --to=holger@rusch.name \
    --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.