[mythtv-users] saa7134 vbi problem ?
mark_kiddy at wp.pl
Fri Aug 31 05:28:15 UTC 2007
i have problem with VBI/Pal teletext in mythtv
geniatech DVB-S (cx88) looks like :
cx88: subsystem: 14f1:0084, board: Geniatech DVB-S
cx88: TV tuner type 4, Radio tuner type -1
cx88/0: registered device video3 [v4l2]
cx88/0: registered device vbi3
cx88/2: cx2388x dvb driver version 0.0.6 loaded
cx88/2: registering cx8802 driver, type: dvb access: shared
cx88/2: subsystem: 14f1:0084, board: Geniatech DVB-S [card=52]
cx88/2: cx2388x based DVB/ATSC card
KNC One TV Station DVR
saa7134: subsystem: 1894:a006, board: KNC One TV-Station DVR
tuner 0-0060: type set to 38 (Philips PAL/SECAM multi (FM1216ME MK3))
saa6752hs 0-0020: saa6752hs: chip found @ 0x40
saa7134: registered device video1 [v4l2]
saa7134: registered device vbi1
saa7134: registered device radio1
saa7134 ALSA driver for DMA sound loaded
saa7134/alsa: saa7134 at 0xfdeffc00 irq 17 registered as card 1
saa7134: registered device video0 [mpeg]
so it looks rather ok.
I can watch, record, switch between channels, inputs, etc
but when I try menu -> toggle teletext menu - see "P100 Page not
available" on every channel - source independent.
all analog channels have very good signal - when I use tvtime for
watching analog tv - and alevt for teletext it works without problems
(but alevt needs patch for using it with saa7134 - without this patch it
can't decode vbi data - look at this patch here :
http://marc.info/?l=linux-video&m=104135131408201&w=2), cat /dev/vbi1
shows data stream..
mythtv-setup has vbi inputs properly configured (for saa7134 /dev/vbi1,
fuser /dev/vbi1 while watching analog shows /dev/vbi1 is used by
Logs doesn't show any VBI problem
Maybe this is sth. wrong with decoding (v4l2 or saa7134 related?) or
maybe I miss something - how i can debug this ?
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