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chuckrcheese

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Reply with quote  #31 
that's not the tuner its detecting its the Demodulator, 
  • USB interface: Conexant CX23102
  • Demodulator: LG Electronics LGDT3306A
  • Tuner: Silicon Labs Si2157-A30



Quote:
Originally Posted by chewie
Hello All
Here are screen shots of my 955q tuner enable on these 2 images I posted on a previous e-mail.
Regards.
Chewie

ScreenGrabber.jpg  ScreenGrabber.jpg 
wejones

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Reply with quote  #32 
Thanks for the link & information.  That linuxtv  site did have a page for it, ie:
https://www.linuxtv.org/wiki/index.php/KWorld_UB445-U2_ATSC_Hybrid_TV_Stick
but it says that it apparently is no longer supported, but I found another page that acted like it was pretty much similar to some other TV sticks that were supported, so I wasn't sure if it had been abandoned or perhaps might be supported in the future, or if there might be a hack to get it to work.
    I never even tried to run the stick in linux (RPI), but as mentioned, the RPI did seem to recognize it when I ran the lsusb -v command, ie
Bus 001 Device 007: ID 1b80:e43f Afatech
just like it describes it in the linuxtv page above, and when I ran the lsusb -v command, it spit out a lot of info related to "Polaris AV Capture", whatever that is, so it does seem like the RPI does seem to recognize it as a TV card, however I don't see anything related to it in the /lib/firware directory.
I then went to /var/log, and viewed the syslog.  It said:

Code:
Sep 19 10:05:22 localhost kernel: [1555695.415357] usb 1-1.3: new high-speed USB device number 7 using dwc_otg
Sep 19 10:05:22 localhost kernel: [1555695.518919] usb 1-1.3: New USB device found, idVendor=1b80, idProduct=e43f
Sep 19 10:05:22 localhost kernel: [1555695.518947] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Sep 19 10:05:22 localhost kernel: [1555695.518965] usb 1-1.3: Product: Polaris AV Capture
Sep 19 10:05:22 localhost kernel: [1555695.518981] usb 1-1.3: Manufacturer: Conexant Corporation
Sep 19 10:05:22 localhost kernel: [1555695.518998] usb 1-1.3: SerialNumber: 0000000000
Sep 19 10:05:22 localhost kernel: [1555695.531177] cx231xx 1-1.3:1.1: New device Conexant Corporation Polaris AV Capture @ 480 Mbps (1b80:e43f) with 7 interfaces
Sep 19 10:05:22 localhost kernel: [1555695.532157] cx231xx 1-1.3:1.1: Identified as KWorld USB ATSC TV Stick UB445 V3 (card=23)
Sep 19 10:05:22 localhost kernel: [1555695.533562] i2c i2c-3: Added multiplexed i2c bus 5
Sep 19 10:05:22 localhost kernel: [1555695.533740] i2c i2c-3: Added multiplexed i2c bus 6
Sep 19 10:05:22 localhost kernel: [1555695.701073] cx231xx 1-1.3:1.1: v4l2 driver version 0.0.3
Sep 19 10:05:22 localhost kernel: [1555695.750024] cx231xx 1-1.3:1.1: Unknown tuner type configuring SIF
Sep 19 10:05:22 localhost kernel: [1555695.759852] cx231xx 1-1.3:1.1: Registered video device video0 [v4l2]
Sep 19 10:05:22 localhost kernel: [1555695.760346] cx231xx 1-1.3:1.1: Registered VBI device vbi0
Sep 19 10:05:22 localhost kernel: [1555695.761646] cx231xx 1-1.3:1.1: audio EndPoint Addr 0x83, Alternate settings: 3
Sep 19 10:05:22 localhost kernel: [1555695.815610] cx231xx 1-1.3:1.1: cx231xx_send_usb_command: failed with status --32
Sep 19 10:05:22 localhost kernel: [1555695.815640] lgdt3305_read_reg: error (addr 0e reg 0001 error (ret == -32)
Sep 19 10:05:22 localhost kernel: [1555695.815654] lgdt3305_attach: error -32 on line 1146
Sep 19 10:05:22 localhost kernel: [1555695.815666] lgdt3305_attach: unable to detect LGDT3305 hardware
Sep 19 10:05:22 localhost kernel: [1555695.815684] cx231xx: Failed to attach LG3305 front end
Sep 19 10:05:22 localhost kernel: [1555695.815996] cx231xx 1-1.3:1.1: video EndPoint Addr 0x84, Alternate settings: 5
Sep 19 10:05:22 localhost kernel: [1555695.816024] cx231xx 1-1.3:1.1: VBI EndPoint Addr 0x85, Alternate settings: 2
Sep 19 10:05:22 localhost kernel: [1555695.816044] cx231xx 1-1.3:1.1: sliced CC EndPoint Addr 0x86, Alternate settings: 2
Sep 19 10:05:22 localhost kernel: [1555695.816064] cx231xx 1-1.3:1.1: TS EndPoint Addr 0x81, Alternate settings: 6
Sep 19 10:05:22 localhost mtp-probe: checking bus 1, device 7: "/sys/devices/platform/bcm2708_usb/usb1/1-1/1-1.3"
Sep 19 10:05:22 localhost mtp-probe: bus: 1, device: 7 was not an MTP device


It seemed to be going OK until it seemed to get stuck on the LGDT3305 hardware. so that made it seem like it would NOT work on my RPI, although it hasn't been updated it 2 years, so it might be a different story if I'd burn an SD card with a newer image from Darksky.

The 445 was just a cheap TV receiver that I bought to watch a hockey game last spring while traveling.  Worked OK on Windows, but after seeing that the Octagon could be made to work with some TV sticks, that maybe the cheap 445 might work for that.  But it's probably more trouble than it's worth, so maybe I should give up and get one of those WinTV sticks that apparently work. 

Anyway, thanks for the info. 

Quote:
Originally Posted by majortom
wejones, sorry thought you were having UB435...
See this post UDL made about 3 or 4 years ago...
http://rickcaylor.websitetoolbox.com/post/show_single_post?pid=1282129949&postcount=731&forum=106995

I am not sure if any progress was made with the UB445 since then? lgdt3305 isn't a bad demod.
It was used in many of the CECB STBs, like the zenith DTT-901, as well as the LG TV in my living room (vintage 2009)
and the hauppauge Aero-M that I have.
Just doesn't have the same functionality internally that the newer lgdt3306a chip has today.
I do know that I don't see Kworld 445 listed in the wiki. https://linuxtv.org/wiki/index.php/ATSC_USB_devices
But that doesn't necessarily mean it hasn't been worked on by linux developers.
As I doubt everything supported gets documented in a wiki..
But if you can get it to work on your PC in linux, then in my mind there is no reason it couldn't be made to work
in an STB running linux, if the STB developers have compiled it's drivers and made hooks for it in their software.
If you cannot get it to work on your PC in linux, then I would be skeptical of it ever working
in your STB.

bogie

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Reply with quote  #33 
what a machine[biggrin]
i have my sats and atsc with epg  this is just perfet.


bogie

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Reply with quote  #34 
pic

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bogie

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Reply with quote  #35 
the 950 is a much better unit than the new model. it works perfect with the 6.1 image.

DarkSky

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Posts: 2,248
Reply with quote  #36 
Quote:
Originally Posted by wejones


It seemed to be going OK until it seemed to get stuck on the LGDT3305 hardware. so that made it seem like it would NOT work on my RPI, although it hasn't been updated it 2 years, so it might be a different story if I'd burn an SD card with a newer image from Darksky.


I Think this is majortom's and my latest image if you want to try it. It should work with the pi's 1, 2 & 3:

Be sure to expand the root file system first after booting into the image in raspi-config and then reboot:

sudo raspi-config

1.9G
28fb17a646c3c264d95f343bf522af02  rpi-123-stretch_411-rc7.img.tar.bz2


https://drive.google.com/file/d/0B-hVZ4SWSiuKbWJmTGhETS05YzA/view?usp=sharing

The kernel is 4.11.0-rc7 in the image. We have been maintaining a kernel tree for people who want to keep the kernel current which is currently at 4.13.0-rc1 but the raspian kernel was updated yesterday to 4.14.0-rc1 so hopefully majortom and I can get the new kernel pushed in a few days:

If I remember right the kernel tree only works with the PIXEL and Stretch images as the earlier images you will have issues to correct.

https://bitbucket.org/dark-sky/rpi-udl-linux
wejones

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Reply with quote  #37 
Thanks, Darksky, downloading it now, although it will probably be a day or two before I get to trying it. When I did the version I've been using for a couple years, I had limited internet bandwidth, so I had to be careful how much I downloaded, but now I have dsl.  About the same speed, but unlimited quantity.  [smile]
bogie

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Posts: 485
Reply with quote  #38 
may i ask what is so special about the 955q ??
i have read the spec to that unit and i don't find any difference between the 950 and 955
unless i am missing something.

cheers
bogie
DarkSky

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Posts: 2,248
Reply with quote  #39 
I have both the 955 and 950. The 955 does the fastest Spectrum scan (2.6 seconds) of any device I have. It also seems to lock a signal faster; sometimes I have to try a couple of times with my 950 to get a lock.

I seldom use my 950 since I bought the 955.

I do not know all of the extra features majortom mentioned above but one thing he was able to implement an IQ plot in UDL's updateDVB with it that I think is cool.


Screenshot at 2017-09-20 09-31-22.png
DarkSky

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Posts: 2,248
Reply with quote  #40 
Quote:
Originally Posted by wejones
Thanks, Darksky, downloading it now, although it will probably be a day or two before I get to trying it. When I did the version I've been using for a couple years, I had limited internet bandwidth, so I had to be careful how much I downloaded, but now I have dsl.  About the same speed, but unlimited quantity.  [smile]


Sounds like you are moving up with your internet. Your time frame might be about right to give majortom and I time to get the latest kernel (4.14.0-rc1) built and tested. The kernel is built and now it will be in the testing phase for a couple of days.

I will post a tarball for you here for you to upgrade to the very latest kernel when we are sure it is right. So far there are not any issues.

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Fellow Members, your posts are welcome here! Do not worry about posting everything perfect. Different receivers and LNB's will give you different Frequencies and Symbol Rates. Some set top boxes, PCI cards and USB receivers, Do Not Require all of the same information that others may need. It is not Required to post everything that others may need to tune in a feed. It is just most important to share the find. We can always adjust the Frequency and Symbol Rates and try the various Modulations and FEC's on our own receivers until we get a lock and then give a polite reply with what works for your receiver, as that information might help others as well. We all appreciate the efforts and energy of the Posters!

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