From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-pa0-f41.google.com ([209.85.220.41]:59875 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752551AbaBFTZ0 (ORCPT ); Thu, 6 Feb 2014 14:25:26 -0500 Received: by mail-pa0-f41.google.com with SMTP id fa1so2107639pad.0 for ; Thu, 06 Feb 2014 11:25:25 -0800 (PST) Message-ID: <52F3E06B.5090702@gmail.com> Date: Thu, 06 Feb 2014 11:20:11 -0800 From: Connor Behan MIME-Version: 1.0 To: Devin Heitmueller CC: Linux Media Mailing List Subject: Re: au0828 errors and mangled video with Hauppauge 950Q References: <52F1D497.4010509@gmail.com> In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="R1MwgAgcv0kLN1mN8SXRvrETTVFC1Rumg" Sender: linux-media-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --R1MwgAgcv0kLN1mN8SXRvrETTVFC1Rumg Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 05/02/14 01:46 AM, Devin Heitmueller wrote: > On Wed, Feb 5, 2014 at 1:05 AM, Connor Behan > wrote: >> Ccing Devin. I'm pretty sure the analog side has a problem at the driv= er >> level. >> >> On most days, one cannot pickup an ATSC signal where I am, so I am >> trying to capture analog video with a Hauppauge WinTV HVR 950Q. Whethe= r >> I use Television, Composite or S-Video, I see the same corrupted video= >> such as this: http://imgur.com/c398F4v > Looks like insufficient USB bandwidth available to support the 24 > MB/second required for uncompressed analog video. > > Is this on an x86 PC? Or some embedded target such as ARM? If the > latter, then the answer is almost certainly that the USB host > controller implementation is garbage and cannot handle the throughput. > > Devin > It's an x86 PC but bandwidth was indeed the problem. I thought I was having a power issue before. So I started using a Cardbus to USB adapter that had an external power port. This was a mistake, and I can get the tuner to work again if I switch back to a built-in port. Thanks a lot. --R1MwgAgcv0kLN1mN8SXRvrETTVFC1Rumg Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJS8+ByAAoJENU6BEW0eg2rutAH/29Ois0rDWLdgGh+sQ6NxFz2 80Cif00On6kQEkHE1dsMzSN/irr4lA743xHs6AVp9Ab0h4AvCHd8oQluCBxUiKVV c86cLhvF43tNFBNaffWP/zl9xBszqwfs4tBtNG/ezXAsUVnJV97cKOxEut2cu9et jdXOF7IwPAYhiQPbFaZPXRSbH6COdnqqUK4LVrRm/wb092AW83xJ1O0uSz9UP9sY IYTtONd39KuhWCWF/CCvqCxVbhQdeRYeI0oDaGTcG50cNaVbfmjeAmJxU+6of3bx hBW1Ouvd+W6aTe99/IVcrECXsFsVwFU2fYbaKersOrM5F6kQbT6e7Rr2wUtZT7w= =cmz/ -----END PGP SIGNATURE----- --R1MwgAgcv0kLN1mN8SXRvrETTVFC1Rumg--