[mythtv-users] pchdtv 3000 dvb or atsc?

[Wendy Seltzer]

At 01:51 PM 7/3/2005 -0600, Chad wrote:

>So, to recap:
>with the atsc module I get a video, but no audio and I can't switch
>channels.  With the dvb module, I appear to get everything configured
>correctly, but get nothing.

With the dvb-based modules, the card has to load the frontend firmware, 
e.g. from /usr/lib/hotplug/firmware/ .  In one of my setups, I found it 
didn't load the firmware until I ran the mythtv-setup channel scan for the 
first time.  Check your dmesg for something like this:

$ dmesg
...
cx2388x dvb driver version 0.0.4 loaded
ACPI: PCI Interrupt 0000:02:09.2[A] -> GSI 21 (level, low) -> IRQ 21
cx88[0]/2: found at 0000:02:09.2, rev: 5, irq: 21, latency: 64, mmio: 
0xf6000000
cx88[0]/2: cx2388x based dvb card
DVB: registering new adapter (cx88[0]).
DVB: registering frontend 0 (pcHDTV HD3000 HDTV)...
or51132: Waiting for firmware upload(dvb-fe-or51132-vsb.fw)...
or51132: Version: 10001134-19430000 (113-4-194-3)
or51132: Firmware upload complete.

I've found little difference between the dvb and v4l, but I think the 
dvb-based code will have more support in the future, as that's where more 
developers seem to be working.

--Wendy

--
Wendy Seltzer -- wendy at seltzer.com
Electronic Frontier Foundation
Berkman Center for Internet & Society at Harvard Law School
http://cyber.law.harvard.edu/seltzer.html
Chilling Effects: http://www.chillingeffects.org/