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List:       linux-video
Subject:    Re: Support for Medion CTX953
From:       Benjamin Adler <benadler () gmx ! net>
Date:       2007-08-13 18:14:41
Message-ID: 200708132014.41639.benadler () gmx ! net
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Am Montag, 13. August 2007 01:45 schrieben Sie:
> after your pictures of the card in the AverTV DVB-T Super 007 thread,
> I have some doubts if it has analog radio at all. The likely 5.5MHz
> ceramic filter seen on the fuzzy picture of the other version is gone.
> Is analog radio announced at all?

It is advertised, yes. If you go to http://www.medion.de/md8824/ and click on 
the left Aldi-Button, then on "TV Tuner" in the popup window, it 
says "TV-Tuner für Analog / Digital TV ( DVB-T)". 

> Hmm, we can do a test for analog, just to say we have tried that too.
> Do a cold boot, 30 seconds no power connected, make sure only card=5
> tuner=54 is loaded, means we don't touch any gpio, nothing. (default
> card=0 doesn't any changes too, so don't need card=5 in modprobe.conf)
> 
> Enable debug=1 for tuner. Load the europe-west list and try to switch to
> some known channels. The tda8275ac1 would report "has lock" in dmesg,
> even you see only a black picture, if tuning is successful. I don't
> expect it in the first place ...
>
> The other reason for card=5 is that it is identical to the Creatix
> md7134 card=12, except without eeprom detection for some tuners.

I placed these two lines into modules.conf:

options saa7134 card=5 tuner=54
options tuner debug=1

switched off the machine, disconnected the power for 10 minutes, connected the 
cabletv-cable then booted back up. dmesg said:

Linux video capture interface: v2.00
saa7130/34: v4l2 driver version 0.2.14 loaded
ACPI: PCI Interrupt 0000:04:01.0[A] -> GSI 22 (level, low) -> IRQ 22
saa7133[0]: found at 0000:04:01.0, rev: 209, irq: 22, latency: 64, mmio: 
0xff9ff800
saa7133[0]: subsystem: 16be:0010, board: SKNet Monster TV [card=5,insmod 
option]
saa7133[0]: board init: gpio is 0
saa7133[0]: i2c eeprom 00: be 16 10 00 54 20 1c 00 43 43 a9 1c 55 d2 b2 92
saa7133[0]: i2c eeprom 10: 00 ff 86 0f ff 20 ff 00 01 50 32 79 01 3c ca 50
saa7133[0]: i2c eeprom 20: 01 40 01 02 02 03 01 00 06 ff 00 2c 02 51 96 2b
saa7133[0]: i2c eeprom 30: a7 58 7a 1f 03 8e 84 5e da 7a 04 b3 05 87 b2 3c
saa7133[0]: i2c eeprom 40: ff 21 00 c0 96 10 03 22 15 00 fd 79 44 9f c2 8f
saa7133[0]: i2c eeprom 50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: i2c eeprom 70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
saa7133[0]: registered device video0 [v4l2]
saa7133[0]: registered device vbi0
saa7133[0]: registered device radio0

> I expect that you can verify the Composite and S-Video input if you
> should have anything to test on it.

I don't :(

> How it looks, the card has no analog audio out.
> You need to modprobe saa7134-alsa and check dmesg which dsp and mixer
> device it gets assigned. Sound comes from PCM then. Try accordingly

"modprobe saa7134_alsa debug=1" makes dmesg say:

saa7134 ALSA driver for DMA sound loaded
saa7133[0]/alsa: saa7133[0] at 0xff9ff800 irq 22 registered as card -1

Then I tried

# mplayer tv:// -tv driver=v4l2:normid=0:channel=3
MPlayer dev-SVN-r23820-4.1.1 (C) 2000-2007 MPlayer Team
CPU: Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz (Family: 6, Model: 15, 
Stepping: 6)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2

Playing tv://.
TV file format detected.
Selected driver: v4l2
 name: Video 4 Linux 2 input
 author: Martin Olschewski <olschewski@zpr.uni-koeln.de>
 comment: first try, more to come ;-)
Selected device: SKNet Monster TV
 Tuner cap: STEREO LANG1 LANG2
 Tuner rxs: MONO
 Capabilites:  video capture  video overlay  VBI capture device  tuner  
read/write  streaming
 supported norms: 0 = PAL; 1 = PAL-BG; 2 = PAL-I; 3 = PAL-DK; 4 = NTSC; 5 = 
SECAM; 6 = SECAM-DK; 7 = SECAM-L; 8 = SECAM-Lc; 9 = PAL-M; 10 = PAL-Nc; 11 = 
PAL-60;
 inputs: 0 = Television; 1 = Composite1; 2 = S-Video;
 Current input: 0
 Current format: BGR24
v4l2: current audio mode is : MONO
open: No such file or directory
[MGA] Couldn't open: /dev/mga_vid
open: No such file or directory
[MGA] Couldn't open: /dev/mga_vid
==========================================================================
Opening video decoder: [raw] RAW Uncompressed Video
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [xv] 640x480 => 640x480 Planar YV12
Selected video codec: [rawyv12] vfm: raw (RAW YV12)
==========================================================================
Audio: no sound
Starting playback...
New_Face failed. Maybe the font path is wrong.
Please supply the text font file (~/.mplayer/subfont.ttf).
subtitle font: load_sub_face failed.
v4l2: 40 frames successfully processed, 0 frames dropped.

No matter whcih channel I started mplayer with, I got a black window.

"tvtime-scanner -n PAL" again ran without any results. xawtv didn't deliver an 
image either, although I'm not sure I'm understanding the 
interface/channeleditor correctly.

> sox -c 2 -s -w -r 32000 -t ossdsp /dev/dsp1 -t ossdsp -w -r 32000 /dev/dsp

"alsamixer -c 1" gives me Line 1, Line 2 and Video, all of which I turned up.

# sox -c 2 -s -w -r 32000 -t ossdsp /dev/dsp1 -t ossdsp -w -r 32000 /dev/dsp

Input Filename : /dev/dsp1
Sample Size    : 16-bits
Sample Encoding: signed (2's complement)
Channels       : 2
Sample Rate    : 32000

Time: 00:22.66 [00:00.00] of 00:00.00 (  0.0%) Output Buffer: 724.99K

This gave me perfect silence, also while mplayer was running.

cheers,
ben

P.S: Is this card capable of supplying the 5V needed for an active DVB-T 
antenna?

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