From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-qy0-f174.google.com ([209.85.216.174]:50608 "EHLO mail-qy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752006Ab1DKQcr (ORCPT ); Mon, 11 Apr 2011 12:32:47 -0400 Received: by qyk7 with SMTP id 7so1391264qyk.19 for ; Mon, 11 Apr 2011 09:32:47 -0700 (PDT) Date: Mon, 11 Apr 2011 12:32:39 -0400 From: Eric B Munson To: Andy Walls Cc: Mauro Carvalho Chehab , mchehab@infradead.org, linux-media@vger.kernel.org Subject: Re: HVR-1600 (model 74351 rev F1F5) analog Red Screen Message-ID: <20110411163239.GA4324@mgebm.net> References: <1301922737.5317.7.camel@morgan.silverblock.net> <1302015521.4529.17.camel@morgan.silverblock.net> <1302481535.2282.61.camel@localhost> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="IS0zKkzwUGydFO0o" Content-Disposition: inline In-Reply-To: <1302481535.2282.61.camel@localhost> List-ID: Sender: --IS0zKkzwUGydFO0o Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, 10 Apr 2011, Andy Walls wrote: > On Wed, 2011-04-06 at 13:28 -0400, Eric B Munson wrote: > > On Tue, Apr 5, 2011 at 10:58 AM, Andy Walls w= rote: > > > On Mon, 2011-04-04 at 14:36 -0400, Eric B Munson wrote: > > >> On Mon, Apr 4, 2011 at 11:16 AM, Eric B Munson w= rote: > > >> > On Mon, Apr 4, 2011 at 9:12 AM, Andy Walls wrote: > > >> >> On Mon, 2011-04-04 at 08:20 -0400, Eric B Munson wrote: > > >> >>> I the above mentioned capture card and the digital side of the c= ard > > >> >>> works well. However, when I try to get video from the analog si= de of > > >> >>> the card, all I get is a red screen and no sound regardless of c= hannel > > >> >>> requested. This is a problem I see in 2.6.39-rc1 though I typic= ally > > >> >>> run the ubuntu 10.10 kernel with the newest drivers built from s= ource. > > >> >>> Is there something in setup or configuration that I may be miss= ing? > > >> >> > > >> >> Eric, > > >> >> > > >> >> You are likely missing the last 3 fixes here: > > >> >> > > >> >> http://git.linuxtv.org/awalls/media_tree.git?a=3Dshortlog;h=3Dref= s/heads/cx18_39 > > >> >> > > >> >> (one of which is critical for analog to work). > > >> >> > > >> >> Also check the ivtv-users and ivtv-devel list for past discussion= s on > > >> >> the "red screen" showing up for known well supported models and w= hat to > > >> >> try. > > >> >> > > >> > Thanks, I will try hand applying these. > > >> > > > >> > > >> I don't have a red screen anymore, now all get from analog static and > > >> mythtv's digital channel scanner now seems broken. > > > > > > Hmmm. > > > > > > 1. Please provide the output of dmesg when the cx18 driver loads. > >=20 [332935.115343] cx18: Start initialization, version 1.4.1 [332935.115385] cx18-0: Initializing card 0 [332935.115389] cx18-0: Autodetected Hauppauge card [332935.115449] cx18 0000:04:01.0: PCI INT A -> GSI 16 (level, low) -> IRQ = 16 [332935.127005] cx18-0: cx23418 revision 01010000 (B) [332935.342426] tveeprom 0-0050: Hauppauge model 74351, rev F1F5, serial# 7= 384278 [332935.342432] tveeprom 0-0050: MAC address is 00:0d:fe:70:ac:d6 [332935.342437] tveeprom 0-0050: tuner model is NXP 18271C2 (idx 155, type = 54) [332935.342443] tveeprom 0-0050: TV standards PAL(B/G) NTSC(M) PAL(I) SECAM= (L/L') PAL(D/D1/K) ATSC/DVB Digital (eeprom 0xfc) [332935.342448] tveeprom 0-0050: audio processor is CX23418 (idx 38) [332935.342453] tveeprom 0-0050: decoder processor is CX23418 (idx 31) [332935.342457] tveeprom 0-0050: has no radio [332935.342460] cx18-0: Autodetected Hauppauge HVR-1600 [332935.392016] cx18-0: Simultaneous Digital and Analog TV capture supported [332935.497007] tuner 1-0042: Tuner -1 found with type(s) Radio TV. [332935.501259] cs5345 0-004c: chip found @ 0x98 (cx18 i2c driver #0-0) [332935.548567] tda829x 1-0042: setting tuner address to 60 [332935.572554] tda18271 1-0060: creating new instance [332935.612568] TDA18271HD/C2 detected @ 1-0060 [332936.676587] tda18271: performing RF tracking filter calibration [332950.816567] tda18271: RF tracking filter calibration complete [332950.864571] tda829x 1-0042: type set to tda8295+18271 [332951.569137] cx18-0: Registered device video0 for encoder MPEG (64 x 32.= 00 kB) [332951.569143] DVB: registering new adapter (cx18) [332951.672187] tda18271 0-0060: creating new instance [332951.678691] TDA18271HD/C2 detected @ 0-0060 [332951.737797] cx18-0: loaded v4l-cx23418-cpu.fw firmware (158332 bytes) [332951.876157] cx18-0: loaded v4l-cx23418-apu.fw firmware V00120000 (14120= 0 bytes) [332951.882195] cx18-0: FW version: 0.0.74.0 (Release 2007/03/12) [332951.984040] DVB: registering adapter 0 frontend 0 (Samsung S5H1411 QAM/= 8VSB Frontend)... [332951.984208] cx18-0: DVB Frontend registered [332951.984214] cx18-0: Registered DVB adapter0 for TS (32 x 32.00 kB) [332951.984268] cx18-0: Registered device video32 for encoder YUV (20 x 101= =2E25 kB) [332951.984320] cx18-0: Registered device vbi0 for encoder VBI (20 x 51984 = bytes) [332951.984367] cx18-0: Registered device video24 for encoder PCM audio (25= 6 x 4.00 kB) [332951.984372] cx18-0: Initialized card: Hauppauge HVR-1600 [332951.984415] cx18: End initialization [332951.994916] cx18-alsa: module loading... [332952.733994] cx18-0 843: loaded v4l-cx23418-dig.fw firmware (16382 bytes) [332952.753703] cx18-0 843: verified load of v4l-cx23418-dig.fw firmware (1= 6382 bytes) > > > 3. Please provide the relevant portion of the mythbackend log where > > > where the digital scanner starts and then fails. > >=20 > > So the Digital scanner doesn't fail per se, it just doesn't pick up > > most of the digital channels available. The same is true of scan, it > > seems to find only 1 channel when I know that I have access to 18. >=20 > Make sure it's not a signal integrity problem: >=20 > http://ivtvdriver.org/index.php/Howto:Improve_signal_quality >=20 > wild speculation: If the analog tuner driver init failed, maybe that is > having some bad EMI efect on the digital tuner >=20 > I'm assumiong you got more than the 1 channel before trying to enable > analog tuning.A That is true, when I was running the backported drivers on the Ubuntu 10.10 kernel I was able to see 16 of the 18 available to me. >=20 > > > > > > 4. Does digital tuning still work in MythTV despite the digital scann= er > > > not working? > >=20 > > Using the command line tools you linked I am able to tune to the > > channel that is found and watch it via mplayer. >=20 > Can you tune to other known digital channels? I will have to see if I can set one up by hand and try it. I will get back= to you when I am able to do this (should be later today). >=20 > > Let me know if you need anything else. >=20 > Are you tuning digital cable (North American QAM) or digital Over The > Air (ATSC)? I am using digital cable (NA QAM). >=20 > I tune ATSC with a high gain antenna and a Winegard preamplifer for > fringe areas; I'm 75 miles away from the city. One of the most > important contributions to getting a good signal was a lightning > protection/grounding block for the coaxial cable shield near the antenna > end of the cable. I suspect I was picking up a lot of EMI from in-home > sources and other local sources. >=20 > If using a preamp, make sure you are not over-amplifying the signal. It > will cause clipping in the tuner's front end, inducing intermodulation > products which look like noise and degrade the SNR. >=20 > Regards, > Andy >=20 >=20 >=20 --IS0zKkzwUGydFO0o Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAEBAgAGBQJNoy0nAAoJEH65iIruGRnNntYH+wQh814/EWQs2C/8ATIcrfVh Le6UjpVZvCWgVQdbpiAM1GwpZAs/1otcNxKYwahDybnZl0WjAumTWezubxJvCoqz IAlCyZmeBnuXubXshMzNa4JBBdj/bG+ieVSCn8HIo/4X1iFMK4vLEfQ/r4+c4X5L 7t/HbgOsjO2WbWmklqbDRnuFaKi5G9vX0T7QujShFdvvRdWWYnBuUXOMbHH1w5uC JkjRtoKzcIC6TEjhCDpi8nXNv/cdeShLtWjG6UqLyTztPolNHy9NnujfvrLoztxv pQMC8XYFfoN9YGqY7IyYkZ2z8o9kPOjK/bMkdXJYzzxhbnuqJCY6OKS6u09fhPo= =3HhF -----END PGP SIGNATURE----- --IS0zKkzwUGydFO0o--