[mythtv-users] Avermedia 771 Card
Rob Willett
rob.mythtv at robertwillett.com
Mon Aug 23 11:55:09 EDT 2004
Lloyd,
There is no line in mt352.c with 761 in it. I grepped the whole of the frontends
directory and there is no line with 761 in
dvb-kernel/linux/drivers/media/dvb/frontend
I attach the mt352.c file here, perhaps you can compare it with yours?
Rob.
Quoting Lloyd Keen <lloyd at comnetel.com>:
> Rob,
> I haven't got all the info in front of me at the moment, but from memory you
>
> have to edit the mt352.c file and comment out the line with 761 and
> uncomment out the line with 771. Rebuild and try again. The only two modules
>
> you need to load are dvb-bt8xx and mt352. The dvb-bt8xx module takes care of
>
> loading bt878. BTW you shouldn't need to put any switches on the mt352
> module. Just a modprobe mt352 should do it.
> ----- Original Message -----
> From: "Rob Willett" <rob.mythtv at robertwillett.com>
> To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> Sent: Saturday, August 21, 2004 5:20 PM
> Subject: [mythtv-users] Avermedia 771 Card
>
>
> > Hi,
> >
> > I'm trying to get the Avermedia DVB-T 771 card to work. It's been a trying
>
> > week
> > so far.
> >
> > The system is as follows:
> >
> > Generic 2.6.7 kernel on top of RedHat 9.0
> > The latest CVS of the DVB-kernel code from linuxtv.org.
> > The bytesex patches 2.6.7-kracken
> > Myth 0.15.1
> > A number of informal mt352.c patches...
> >
> > The system has a Nebula DVB card and this works OK.
> >
> > I have used the ethics-gradient setup for DVB and can get the Nebula card
> > to
> > scan and tune, the Nebula card also works in Mythtv.
> >
> > The Avermedia card is a different issue. It will not scan
> > dvb-t/uk-CrsyalPalace
> > and find channels. Since the same arial is used for both I figure that the
>
> > input
> > signal is OK. I start the scan process and it simply comes back with
> > tuning failed.
> >
> > Ouput from scan command
> > [root at mythtv scan]# ./scan -a1 dvb-t/uk-CrystalPalace
> > scanning dvb-t/uk-CrystalPalace
> > using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0'
> > initial transponder 505833333 0 3 0 1 0 0 0
> > initial transponder 481833333 0 2 0 3 0 0 0
> >>>> tune to:
> >
>
505833333:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
> > WARNING: >>> tuning failed!!!
> >>>> tune to:
> >
>
505833333:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_NONE:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
> > (tuning failed)
> > WARNING: >>> tuning failed!!!
> >>>> tune to:
> >
>
481833333:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_NONE:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
> > ERROR: interrupted by SIGINT, dumping partial result...
> > dumping lists (0 services)
> >
> > (I cut short the scanning).
> >
> > The modules load OK apart from the error on loading mt352.c highlighted
> > below
> >
> > Linux video capture interface: v1.00
> > bttv: driver version 0.9.15 loaded
> > bttv: using 8 buffers with 2080k (520 pages) each for capture
> > bttv: Bt8xx card found (0).
> > bttv0: Bt878 (rev 17) at 0000:01:06.0, irq: 5, latency: 32, mmio:
> > 0xdc000000
> > bttv0: detected: Nebula Electronics DigiTV [card=104], PCI subsystem ID is
>
> > 0071:0101
> > bttv0: using: Nebula Electronics DigiTV [card=104,insmod option]
> > bttv0: gpio: en=00000000, out=00000000 in=00ff84cb [init]
> > bttv0: using tuner=-1
> > bttv0: registered device video0
> > bttv0: registered device vbi0
> > bttv0: PLL: 28636363 => 35468950 . ok
> > bttv0: add subdevice "dvb0"
> > bttv: Bt8xx card found (1).
> > bttv1: Bt878 (rev 17) at 0000:01:08.0, irq: 10, latency: 32, mmio:
> > 0xdc002000
> > bttv1: detected: AVermedia DVB-T 771 [card=123], PCI subsystem ID is
> > 1461:0771
> > bttv1: using: AVerMedia AVerTV DVB-T 771 [card=123,autodetected]
> > bttv1: gpio: en=00000000, out=00000000 in=0090008f [init]
> > bttv1: using tuner=4
> > bttv1: registered device video1
> > bttv1: registered device vbi1
> > bttv1: PLL: 28636363 => 35468950 . ok
> > bttv1: add subdevice "dvb1"
> > mt352: Unknown parameter `debug'
> > bt878: AUDIO driver version 0.0.0 loaded
> > bt878: Bt878 AUDIO function found (0).
> > bt878(0): Bt878 (rev 17) at 01:06.1, irq: 5, latency: 32, memory:
> > 0xdc001000
> > bt878: Bt878 AUDIO function found (1).
> > bt878(1): Bt878 (rev 17) at 01:08.1, irq: 10, latency: 32, memory:
> > 0xdc003000
> > attach: checking "bt878 #0 [hw]"
> > find by pci: checking "bt878 #0 [hw]"
> > attach: "bt878 #0 [hw]", to card 0
> > attach: checking "bt878 #1 [hw]"
> > find by pci: checking "bt878 #1 [hw]"
> > attach: "bt878 #1 [hw]", to card 1
> > DVB: registering new adapter (Neb).
> > DVB: registering frontend 0:0 (NxtWave NXT6000)...
> >>>>> mt352_read_register: readreg error (ret == -5) <<<< Is this the
> >>>>> problem?
> > DVB: registering new adapter (Ave).
> > DVB: registering frontend 1:0 (DVB-T Zarlink MT352 demodulator driver)...
> >
> > I have setup the following /etc/rc3.d/S98avermedia
> > #!/bin/sh
> >
> > #depmod -ae
> >
> > case "$1" in
> >
> > start)
> > echo -e "Inserting DVB modules into kernel"
> > # Linux video
> > modprobe videodev
> > # bttv is required for bt878 and dvb-bt8xx
> > # modprobe bttv card=104
> > modprobe bttv i2c_hw=1 card=0x68
> > # modprobe bttv
> > # core DVB
> > modprobe dvb-core dvb_shutdown_timeout=0;
> > modprobe v4l1-compat
> > modprobe v4l2-common
> > modprobe video-buf
> > # Avermedia DVB-T card
> > modprobe mt352 debug=1 force_card=0x1
> > modprobe bt878
> > modprobe dvb-bt8xx
> > ;;
> > stop)
> > echo -e "Removing DVB modules from kernel"
> > rmmod mt352
> > # Avermedia DVB-T card
> > rmmod dvb-bt8xx bt878
> > # core DVB
> > rmmod dvb-core
> > # bttv (required for bt878 and dvb-bt8xx)
> > rmmod bttv
> > # Linux video
> > rmmod videodev video-buf
> > echo
> > ;;
> > restart|reload)
> > $0 stop && $0 start
> > ;;
> > *)
> > echo "Usage: $0 {start|stop|restart}"
> > exit 1
> > esac
> >
> > exit 0
> >
> > When I try and use the card in Mythtv all I get is a blank screen and
> > error
> > messages saying no signal.
> >
> > I figure that my problems are:
> >
> > 1) The card is not scanning and locking onto a signal.
> > 2) The mt352.c code is pretty new and even though it says it works on
> > Avermedia
> > 771 cards it is still alpha code. There may be all sorts of subtle
> > interactions
> > I know nothing about.
> > 3) There have been a small number of postings about the 771 card but I'm
> > confused as to what the correct version of the mt352.c should be and
> > whether
> > some of the patches mentioned are in the CVS version or not.
> >
> > I brought the Avermedia card by mistake, I wanted the older M179 card but
> > Avermedia in their wisdom have changed the bloody chipset. I hate
> > manufacturers
> > who do this. Oh well, whinge off, let's make the dammed thing work.
> >
> > Any help greatly appreciated.
> >
> > Rob.
> >
> > -------------------------------------------------
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> >
>
>
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>
>
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