[mythtv-users] pcHDTV 3000: Questions from a MythTV newbie

Tom E. Craddock Jr. sigtom at sigtom.com
Mon Jul 25 23:20:34 EDT 2005

Brandon Rogers wrote:

>   So, I am starting to wonder if MythTV has support
>for HD broadcasts on a pcHDTV.  Here's what I've
>   I've tried to get it to say that it was trying to
>tune to channel 3.1 again, but I can't figure out what
>I did.  I used the DVB drivers, the atsc drivers, you
>name it.  MythTV doesn't recognize the HD side of the
>card.  I decided to jump ship from FC3 and installed
>KnoppMyth hoping that it would just work.  No again. 
>This time, luckily, it detected the card and set it up
>correctly in the Card setup.  However, when I try to
>add an input connection to the card, there is no card
>listed.  If I were to add the NTSC side of the card,
>then I am able to match my listings to the inputs on
>the NTSC card, but not when I am using the DVB drivers
>or the ATSC drivers.
>   I have tried almost every major Linux distro
>(Debian, FC, SuSE, KnoppMyth, Ubuntu) and I can't get
>MythTV to care about the card.  I am positive that
>this is because I am missing some paradigm that
>everyone else seems to get.  I've followed every HOWTO
>with the pcHDTV in it and Myth still won't run HD. 
>Like I said earlier in this thread, I can tune with
>xine, so I know it works and it isn't a hardware
>   Can anyone PLEASE tell me if they have an OTA
>pcHDTV setup working at all and if they are actually
>viewing HDTV output?  (If so, please describe what you
>did, not just a "Mine works!"  Also, I am just stuck
>on how to configure MythTV to work with the pcHDTV
>3000.  So telling me how to get the packages with apt
>or yum, won't help).  I guess what I am asking is what
>Myth is looking for because it is obviously something
>different than either the pcHDTV drivers are making
>available, or  an inability of Myth to correctly read
>the card.
>I'm really stuck, so if anyone has any suggestions,
>I'm all ears.
>--- Brandon Rogers <blrogers at ieee.org> wrote:

Installed FC4, followed Jarod Wilsons guide,  even tho its for FC3.  
Since FC4 is using a 2.12 kernel, all I needed to do as root was:

modprobe cx88-dvb

Checked dmesg and saw:
cx2388x dvb driver version 0.0.4 loaded
ACPI: PCI Interrupt 0000:01:07.2[A] -> Link [LNK1] -> GSI 3 (level, low) 
-> IRQ 3
cx88[0]/2: found at 0000:01:07.2, rev: 5, irq: 3, latency: 32, mmio: 
cx88[0]/2: cx2388x based dvb card
DVB: registering new adapter (cx88[0]).
DVB: registering frontend 1 (pcHDTV HD3000 HDTV)...

Checked the permissions on /dev/dvb/adapter1 (as adapter0 is my air2pc 
card) :
 ll -h /dev/dvb/adapter1/
total 0
crwxrwxrwx  1 root root 212, 68 Jul 23 11:44 demux0
crwxrwxrwx  1 root root 212, 69 Jul 23 11:44 dvr0
crwxrwxrwx  1 root root 212, 67 Jul 23 11:44 frontend0
crwxrwxrwx  1 root root 212, 71 Jul 23 11:44 net0

All was good on the permissions (note, you may need to modify the 
permissions on the dev if you dont have rw access to it, and it may not 
survive a reboot, so youll have to add it to your init scripts)

Fired up mythtv-setup and was able to config the pchdtv3k card with no 



P.S. Oh yeah, this is for OTA HD broadcasts and I CAN watch and record 
off the pchdtv3k card.

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