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pchdtv 5500 no signal - card defective?
PostPosted: Sun Dec 16, 2007 3:19 pm Reply with quote
nickhart
 
Joined: 15 Oct 2007
Posts: 5




I bought a pchdtv 5500 back in october and couldn't get it to work. I finally have some spare time and am trying to get it running, but am very frustrated. I'm not exactly a linux newbie, but after browsing these forums I'm left with the conclusion that there is way too much information out there for me to take in at once. I need some help.

First off, I need to know if my card is defective. After screwing in the coax cable I noticed that the connector keeps spinning around--and with a little tug the connector popped right off the card. it looks like there's another connector behind the card's faceplate that the exterior connector just clips on to. maybe this is by design, but I don't know. is this expected behavior? I want to know because obviously if the connector is busted I'll be getting no signal.

assuming that's ok, I am running ubuntu gutsy and the dvb driver is loaded properly. from dmesg:

[ 28.098441] cx2388x cx88-mpeg Driver Manager version 0.0.6 loaded
[ 28.098516] CORE cx88[0]: subsystem: 7063:5500, board: pcHDTV HD5500 HDTV [card=47,autodetected]
[ 28.494603] cx88[0]/2: cx2388x 8802 Driver Manager
[ 28.652362] cx88[0]/2: found at 0000:04:09.2, rev: 5, irq: 21, latency: 64, mmio: 0xfc000000
[ 28.671011] cx88[0]/0: found at 0000:04:09.0, rev: 5, irq: 21, latency: 64, mmio: 0xfa000000
[ 28.889923] tuner 2-0043: chip found @ 0x86 (cx88[0])
[ 28.904654] tuner 2-0061: chip found @ 0xc2 (cx88[0])
[ 28.913434] cx8802_register_driver() ->registering driver type=dvb access=shared
[ 28.913438] CORE cx88[0]: subsystem: 7063:5500, board: pcHDTV HD5500 HDTV [card=47]
[ 28.913441] cx88[0]/2: cx2388x based dvb card
[ 29.359848] cx88[0]/0: registered device video0 [v4l2]
[ 29.359877] cx88[0]/0: registered device vbi0
[ 29.362378] DVB: registering new adapter (cx88[0]).
[ 29.362783] cx88[0]/1: CX88x/0: ALSA support for cx2388x boards
[ 4322.508000] cx88[0]/2-mpeg: cx8802_timeout

however, dtvscan doesn't seem to pick up any signals and mythtv doesn't either.

is my card defective?

thanks
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PostPosted: Sun Dec 16, 2007 3:24 pm Reply with quote
nickhart
 
Joined: 15 Oct 2007
Posts: 5




PS: I'm with comcast cable. I only have "basic" analog service, but if I run the coax to my TV I can pick up analog and unencrypted digital channels. I'm assuming that either my card is broken or there's some arcane setting I don't have configured properly. any tips would be appreciated.
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PostPosted: Sun Dec 16, 2007 3:27 pm Reply with quote
wingy
 
Joined: 16 Dec 2007
Posts: 5




I seem to be having the same issue, except when i try to scan for channels with mythtv it says "failed to open card" or something like that and dtvsignal and scan come up with nothing. I also have the little connector thing coming off but i think thats normal.
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PostPosted: Sun Dec 16, 2007 4:48 pm Reply with quote
nickhart
 
Joined: 15 Oct 2007
Posts: 5




also, I've tried the "scan" util with both the following profiles with no luck:

scan /usr/share/doc/dvb-utils/examples/scan/atsc/us-NTSC-center-frequencies-8VSB
scan /usr/share/doc/dvb-utils/examples/scan/atsc/us-Cable-Standard-center-frequencies-QAM256

but they both result in a series of errors that look like:

WARNING: >>> tuning failed!!!
>>> tune to: 665000000:8VSB (tuning failed)

or :

WARNING: >>> tuning failed!!!
>>> tune to: 63000000:QAM_256

I'm convinced my card is broken and am going to attempt to return it.

I wish pchdtv provided better documentation and support. I'm not a novice when it comes to linux, but I feel like I'm being left to sink or swim with this product (in this case many hours wasted "sinking").
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PostPosted: Sun Dec 16, 2007 4:55 pm Reply with quote
waterhead
 
Joined: 24 Apr 2005
Posts: 299




If the drivers are loaded you should have a folder like this:
/dev/dvb/adapter0 (this is for systems with only one card)

There are two drivers that need to be loaded. Enter this in a terminal (as root):
Code:
# lsmod


And look for these two modules:

cx88-dvb
lgdt330x

If they are not present, load them with these commands (as root):
Code:
# modprobe cx88-dvb
# modprobe lgdt330x


When selecting the card, and scanning for channels in MythTV, you need to shut down the mythbackend first.

_________________
Mythbuntu 8.04
Intel D875PBZ main board
Pentium4 3.06Ghz
1024GB RAM
nVidia 6600GT
pcHDTV HD-3000
Air2PC PCI
MythTV 0.21
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PostPosted: Sun Dec 16, 2007 8:34 pm Reply with quote
nickhart
 
Joined: 15 Oct 2007
Posts: 5




the /dev/dvb/adapter0 folder is present:

Code:
root@argent:~# ls -l /dev/dvb/adapter0/
total 0
crw-rw---- 1 root video 212, 4 2007-12-16 16:04 demux0
crw-rw---- 1 root video 212, 5 2007-12-16 16:04 dvr0
crw-rw---- 1 root video 212, 3 2007-12-16 16:04 frontend0
crw-rw---- 1 root video 212, 7 2007-12-16 16:04 net0

and I believe the drivers are loaded:

Code:
root@argent:~# lsmod | grep cx88
cx88_dvb               16772  0
cx88_vp3054_i2c         4608  1 cx88_dvb
dvb_pll                15492  2 cx88_dvb
video_buf_dvb           7812  1 cx88_dvb
cx88_alsa              14600  0
snd_pcm                80388  3 snd_hda_intel,cx88_alsa,snd_pcm_oss
cx8800                 34944  0
compat_ioctl32          2304  1 cx8800
cx8802                 19716  1 cx88_dvb
cx88xx                 68132  4 cx88_dvb,cx88_alsa,cx8800,cx8802
ir_common              35460  1 cx88xx
i2c_algo_bit            7428  2 cx88_vp3054_i2c,cx88xx
tveeprom               16784  1 cx88xx
videodev               29312  2 cx8800,cx88xx
v4l2_common            18432  4 tuner,cx8800,cx88xx,videodev
video_buf              26244  6 cx88_dvb,video_buf_dvb,cx88_alsa,cx8800,cx8802,cx88xx
btcx_risc               5896  4 cx88_alsa,cx8800,cx8802,cx88xx
snd                    54660  12 snd_hda_intel,snd_seq_oss,snd_rawmidi,snd_seq,cx88_alsa,snd_pcm_oss,snd_mixer_oss,snd_seq_device,snd_pcm,snd_timer
i2c_core               26112  10 lgdt330x,cx88_dvb,cx88_vp3054_i2c,dvb_pll,tuner,cx88xx,i2c_algo_bit,tveeprom,nvidia,i2c_nforce2

root@argent:~# lsmod | grep lgdt330x
lgdt330x                9860  1
dvb_core               82216  2 lgdt330x,video_buf_dvb
i2c_core               26112  10 lgdt330x,cx88_dvb,cx88_vp3054_i2c,dvb_pll,tuner,cx88xx,i2c_algo_bit,tveeprom,nvidia,i2c_nforce2


Also, my mythbackend is stopped

Code:
root@argent:~# /etc/init.d/mythtv-backend stop
Stopping MythTV server: mythbackend .

root@argent:~# /etc/init.d/mythtv-backend stop                                  Stopping MythTV server: mythbackend No /usr/bin/mythbackend found running; none killed.


Just as a sanity check, my kernel is up to date:

Code:
root@argent:~# uname -r
2.6.22-14-generic


And I ran through the driver updating process described here: http://linuxtv.org/wiki/index.php/How_to_install_DVB_device_drivers

but I get the same results. the driver is loaded, the device exists--yet I can't find anything when doing a scan. I know the cable connection is good because I can use mythtv with my old pvr-150.
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pchdtv 5500 no signal - card defective?
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