[mythtv-users] no zapping allowed or only black screen.

Fri Mar 10 22:25:08 UTC 2006

hi there,

i was wondering what im doing wrong : i've been trying to get mythtv going 
with my wintv-pvr-150
i installed my driver (ivtv dmesg output bellow)
doing cat /dev/v4l/video0 > file  then mplayer file gives me an mpeg  of the 
tuner
so i guess thats ok 
but then when i go to mythtv-setup i add in "capture cards" an MPEG-2 encoder 
card thats points to /dev/v4l/video0 default input "tuner"
at "video sources" i add an xmltv grabber called "tv"
at "input" i add source "tv" to "MPEG:/dev/v4l/video0 (tuner)" and even when i 
scan for channels it gives me channels ( numbers )
so then at the channel editor i input my channels with the "video source" -> 
"tv" and the correct XMLTVid 

ok thats that done is done

fill up the database with "mythfilldatabase --manual" 
start the backend with "/etc/init.d/mythbackend start"
start "mythfrontend" go go and zap ,, 
but no luck: when i go to "watch tv" it gives me or a black screen or only one 
channel which i can not change 

so my question is : what am i doing wrong ? 
is this an known thing ? 

alright i hope to hear from you people soon and thanks already 

Vincent van Os

output from mythfrontend when starting to watch tv :

2006-03-10 23:15:17.591 Disable DPMS
[mpeg @ 0xb7630360]Parser not found for Codec Id: 94210 !
0: start_time: 0.036 duration: 0.166
1: start_time: 465.133 duration: 0.176
2: start_time: 0.025 duration: 0.145
stream: start_time: 0.276 duration: 5169.828 bitrate=2 kb/s
2006-03-10 23:15:19.707 AFD: Opened codec 0x82b2ad0, id(MPEG2VIDEO) 
type(Video)
2006-03-10 23:15:19.723 AFD: Opened codec 0x8d26f70, id(MP2) type(Audio)
2006-03-10 23:15:19.724 Opening audio device '/dev/sound/dsp'.
2006-03-10 23:15:19.724 Opening OSS audio device '/dev/sound/dsp'.
2006-03-10 23:15:20.066 TV: Changing from None to WatchingLiveTV
2006-03-10 23:15:20.070 Using realtime priority.
2006-03-10 23:15:20.178 Video timing method: RTC
QDateTime::fromString: Parameter out of range
QDateTime::fromString: Parameter out of range
2006-03-10 23:15:53.990 NVP: prebuffering pause
2006-03-10 23:15:54.511 New DB connection, total: 3
2006-03-10 23:15:54.512 Connected to database 'mythconverg' at host: localhost
2006-03-10 23:15:55.641 rebuffering (5253 32768)
2006-03-10 23:15:57.197 rebuffering (26353 32768)

then a lot of :
QDateTime::fromString: Parameter out of range
2006-03-10 23:17:00.831 rebuffering (28481 32768)

dmesg while loading the ivtv driver :

[17196638.376000] ivtv:  ==================== START INIT IVTV 
====================
[17196638.380000] ivtv:  version 0.5.1 (tagged release) loading
[17196638.380000] ivtv:  Linux version: 2.6.15-gentoo-r7 SMP preempt PENTIUM4 
gcc-3.4
[17196638.380000] ivtv:  In case of problems please include the debug info 
between
[17196638.380000] ivtv:  the START INIT IVTV and END INIT IVTV lines, along 
with
[17196638.380000] ivtv:  any module options, when mailing the ivtv-users 
mailinglist.
[17196638.380000] ivtv0: Autodetected WinTV PVR 150 card (cx23416 based)
[17196638.380000] ACPI: PCI Interrupt 0000:02:09.0[A] -> GSI 17 (level, low) 
-> IRQ 21
[17196638.380000] ivtv0: i2c attach to card #0 ok [client=tveeprom, addr=50]
[17196638.440000] tveeprom 0-0050: Hauppauge model 26034, rev C197, serial# 
8357371
[17196638.440000] tveeprom 0-0050: tuner model is TCL 2002MB_3H (idx 97, type 
55)
[17196638.440000] tveeprom 0-0050: TV standards PAL(B/G) PAL(D/K) (eeprom 
0x44)
[17196638.440000] tveeprom 0-0050: audio processor is CX25842 (idx 36)
[17196638.440000] tveeprom 0-0050: decoder processor is CX25842 (idx 29)
[17196638.440000] tveeprom 0-0050: has no radio, has IR remote
[17196638.452000] tuner 0-0061: chip found @ 0xc2 (ivtv i2c driver #0)
[17196638.452000] ivtv0: i2c attach to card #0 ok [client=(tuner unset), 
addr=61]
[17196638.476000] cx25840 0-0044: cx25842-23 found @ 0x88 (ivtv i2c driver #0)
[17196639.740000] cx25840 0-0044: loaded v4l-cx25840.fw firmware (14264 bytes)
[17196639.820000] ivtv0: i2c attach to card #0 ok [client=cx25840, addr=44]
[17196639.840000] wm8775 0-001b: chip found @ 0x36 (ivtv i2c driver #0)
[17196639.852000] ivtv0: i2c attach to card #0 ok [client=wm8775, addr=1b]
[17196640.504000] ivtv0: loaded v4l-cx2341x-enc.fw firmware (262144 bytes)
[17196640.712000] ivtv0: Encoder revision: 0x02050032
[17196640.716000] ivtv0: Allocate DMA encoder MPEG stream: 128 x 32768 buffers 
(4096KB total)
[17196640.716000] ivtv0: Allocate DMA encoder YUV stream: 161 x 12960 buffers 
(2048KB total)
[17196640.716000] ivtv0: Allocate DMA encoder VBI stream: 80 x 26208 buffers 
(2048KB total)
[17196640.716000] ivtv0: Allocate DMA encoder PCM audio stream: 455 x 4608 
buffers (2048KB total)
[17196640.716000] tuner 0-0061: type set to 55 (TCL 2002MB)
[17196640.972000] ivtv0: Initialized WinTV PVR 150, card #0
[17196640.972000] ivtv:  ====================  END INIT IVTV  
====================

lspci -v of the card :
02:09.0 Multimedia video controller: Internext Compression Inc iTVC16 
(CX23416) MPEG-2 Encoder (rev 01)
        Subsystem: Hauppauge computer works Inc. WinTV PVR 150
        Flags: bus master, medium devsel, latency 64, IRQ 21
        Memory at f0000000 (32-bit, prefetchable) [size=64M]
        Capabilities: [44] Power Management version 2