- Googled "0572:86d6" (the vendor ID and product ID of Mygica D286 stick).
Found this site: http://kineticdesign.net.au/blog/?p=35
- The administrator also had the "no signal problem".
"After downloading the 2.6.28 kernel source and a quick rebuild I had the Magic Pro USB recognized by Mythtv. But not signal aarggghhh!"
- I begin to suspect the architecture of the DMB-TH USB stick is:
- For Mygica D268 (cheaper), I don't think there is internal SDRAM. For ASUS U3100 (more expensive), the SDRAM exists (it is clearly stated on the back of the box).
- One of the comment in the website says that:
"Finally, I see on the linuxtv docs that many USB devices need firmware before they start working properly".
I think the firmware is the firmware that is running on the "general purpose MCU".
Also, in this link, the introduction on how to install LGS-8GL5, it also says that:看firmware file 檔名的地方
May be there is a need to update the firmware.
- I also downloaded the ASUS U3100 driver. May be it is the way to try first!
- The administrator also had the "no signal problem".
2009-05-30(2)
I have bought 3 DMB-TH USB dongles. Here are the details:
| Brand | Model Number | USB Vendor Id : Product ID |
| AmazePC | DMB8GL | 3344:2260 |
| Mygica | D286 | 0572:86d6 Conexant Systems (Rockwell), Inc. |
| ASUS | U3100 | 0b05:1721 ASUSTek Computer, Inc. |
Plug "Mygica D286" into a PC with Ubuntu 9.0.4 installed:
- lsmod will see
Module Size Used by
mxl5005s 43908 1
lgs8gl5 13188 1
It seems that the driver is properly installed.
- kmesg can see:
[130644.916024] usb 1-6: new high speed USB device using ehci_hcd and address 13
[130645.048956] usb 1-6: configuration #1 chosen from 1 choice
[130645.049304] dvb-usb: found a 'Conexant DMB-TH Stick' in warm state.
[130645.392080] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
[130645.392246] DVB: registering new adapter (Conexant DMB-TH Stick)
[130647.620796] DVB: registering adapter 0 frontend 0 (Legend Silicon LGS-8GL5 DMB-TH)...
[130647.621012] MXL5005S: Attached at address 0x63
[130647.621398] input: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:1d.7/usb1/1-6/input/input10
[130647.631293] dvb-usb: schedule remote query interval to 100 msecs.
[130647.631425] dvb-usb: Conexant DMB-TH Stick successfully initialized and connected.
- followed the procedure in README below:
tzap -r -c channels.conf His
Although FE_HAS_LOCK is seen in the tzap output:
tuning to 602000000 Hz
video pid 0x0083, audio pid 0x0085
status 01 | signal 0200 | snr 0200 | ber 00000000 | unc 00000000 |
status 1b | signal 4300 | snr 4300 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1b | signal 4300 | snr 4300 | ber 00000000 | unc 00000000 | FE_HAS_LOCKcalling
cat /dev/dvb/adapter0/dvr0 - Booted XP and successfully tuned in 13 chanels (2 in HD). The signal is strong. Nothing wrong with the hardware.
there is nothing coming out! Nothing can be read!
2009-05-30(1)
Investigated video for linux 2 (vl42).
Collected various information from website
http://www.mythtv.org/wiki/Asus_My_Cinema_U3100_mini
http://www.hkepc.com/forum/viewthread.php?tid=1143036
http://www.ofta.gov.hk/zh/freq-spec/tvbnet.pdf
http://global.hkepc.com/forum/viewthread.php?tid=1113305
(serach dmb-th, dvbscan)
Written a README file.
| Procedure to install Mygica D268 DMB-TH stick references: 1) Install Ubutn 9.0.4 2) Plug in USB stick, you should be able to see /dev/dvb/adapter0/* 3) Install: sudo apt-get install dvb-utils 4) create a channels.conf: J2:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:821:823:82 iNews:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:831:834:83 HDJade:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:851:853:85 Jade:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:811:813:1 Pearl:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:841:843:2 Home:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:111:113:11 World:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:161:163:16 His:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:131:133:13 Her:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:141:143:14 News:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:121:123:12 Plus:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:151:153:15 CCTV:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:171:172:17 HDTV:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:92:82:19 5) run tzap -r -c channels.conf His You should be able to see something like: reading channels from file '/root/.tzap/channels.conf' tuning to 754166670 Hz video pid 0x0258, audio pid 0x0259 status 00 | signal ffff | snr c000 | ber 00003fff | unc 00000000 | status 01 | signal 3737 | snr c000 | ber 00003fff | unc 00000000 | status 1f | signal 3636 | snr ffff | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 3636 | snr ffff | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 3636 | snr ffff | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal 3636 | snr ffff | ber 00000000 | unc 00000000 | FE_HAS_LOCK 6) The command above set up the recorder. You can at the mpg data out: cat /dev/dvb/adapter0/dvr0 |
16 則留言:
try
dvbtraffic
and
dvbsnoop -s ts -tsraw -b | mplayer -
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