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From: Steven Toth <stoth@linuxtv.org>
To: David Engel <david@istwok.net>
Cc: linux-media@vger.kernel.org, V4L <video4linux-list@redhat.com>
Subject: Re: PVR x50 corrupts ATSC 115 streams
Date: Tue, 17 Feb 2009 11:05:40 -0500	[thread overview]
Message-ID: <499AE054.6020608@linuxtv.org> (raw)
In-Reply-To: <20090217155335.GB6196@opus.istwok.net>

> Does anyone know what might be going on?  These very same tuner cards
> worked fine in the old system (Intel P4 3.0GHz CPU and Abit IC7
> motherboard) for close to two years.

Determine whether this is an RF issue, or a DMA corruption issue:

1. Check the RF SNR of the digital cards using femon, anything odd going on when 
the PVR250 is running? Does it fall out of lock or SNR dip dangerously low, 
bursts of BER's?

2. Move the two cards as far apart as possible in the slots in the system and 
repeat the test above, any better?

What happens?

- Steve

  reply	other threads:[~2009-02-17 16:05 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-17 15:53 PVR x50 corrupts ATSC 115 streams David Engel
2009-02-17 16:05 ` Steven Toth [this message]
2009-02-17 20:17   ` David Engel
2009-02-17 20:29     ` Steven Toth
2009-02-17 20:56       ` David Engel
2009-02-17 21:05         ` Devin Heitmueller
2009-02-17 22:29           ` Steven Toth
2009-02-17 22:38             ` Devin Heitmueller
2009-02-18 15:16               ` Steven Toth
2009-02-19  2:11                 ` CityK
2009-02-19 15:26                   ` Steven Toth
2009-02-18  5:19       ` David Engel
2009-02-18  8:25         ` Rudy Zijlstra
2009-02-18 15:29           ` David Engel
2009-02-18 14:56         ` Steven Toth
2009-02-18 15:34           ` David Engel
2009-02-19 16:28             ` David Engel
2009-02-19 16:44               ` Steven Toth
2009-02-22 19:35               ` CityK
2009-02-23 18:39                 ` David Engel
2009-02-23 19:06                   ` Steven Toth
2009-02-23 20:10                     ` David Engel
2009-02-23 21:53                       ` Steven Toth
2009-02-23 22:03                         ` Devin Heitmueller
2009-02-23 22:48                           ` David Engel
2009-02-23 22:58                             ` Devin Heitmueller
2009-02-24  1:38                               ` pat-lkml
2009-02-24 16:40                               ` David Engel
2009-02-24  0:05                       ` Andy Walls
2009-08-07  2:50 ` David Engel
  -- strict thread matches above, loose matches on Subject: below --
2009-02-18 12:41 Andreas
2009-02-18 15:39 ` David Engel
2009-02-19  3:37 ` CityK
2009-02-19 13:30   ` Andreas

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