![]() ![]() ![]() Thank you Myth community for all the responses! Here is some feedback and more data.įirst, a puzzling change. The only other model that is similar is the 1590, but that is for the UK (I assume the different demodulator is due to the UK using COFDM vs 8VSB in the US). It looks like that is a bit of project for a Linux newcomer, but I will try that next to see if that solves the kernel errors regarding the lgdt3306a, which hopefully is the root of the channel scan problem.Īs for trading back to an older tuner version or another tuner - I am not aware of any other dual USB based tuners (Hauppauge or otherwise, or older versions). I have found some references on converting PPAs for use with Raspian. The PPA files are for Ubuntu which, like the Raspian I am running, is based on Debian. I believe I already have the latest v4l-dvb since I set all this up less than a month ago, but I will doublecheck that. However, I did look on the Windows machine for any files with '3306' in the name (and a few other guesses) in the hope that it might be firmware that is portable to the RPi. Therefore, the Windows testing I did was on my x86-64 laptop. Getting Windows to run on this would be a challenge. The Raspberry Pi is my target device for MythTV. I realize know I could have been clearer in my note. So it seems like the obvious choice for use with a Raspberry Pi. I would appreciate any pointers on how toĪs far as I can tell, this is the only USB connected dual tuner, Model 1590 makes me think there is some missing firmware, but I cannot findĪnything on the web about this. So the kernel error messages along with similar problems folks had with the These were solved by adding 2 Si2168 firmware files to /lib/firmware. There are many external forum references to channel scanning problems The 1595 (US model) uses the LG DT3306a demodulator. The Si2168 is the demodulator used in the 1590 (UK model). Windows and finds over 15 channels (in the Boston, MA area).ĭoing channel scan using 'mythtv-setup' has 100% signal strengthĪnd signal/noise varying from 0-6% and finds only 3 channels.Ĭontains dual Si2157 tuners and dual LG DT3306a demodulatorsĮxample working kernel output from Īppears to be for the model 1590 since it references the Si2168. Using Hauppauge supplied software, both tuners work fine under On support list as of kernel v4.17, so this should work. I plan to run both back and front end on same hardware Hard drive attached via a powered USB hub Myth version v30.0-60-gb9c1b41a6c (from 'mythbackend -version')ĭual OTA tuner (Hauppauge WinTV-dualHD model 1595) attached via powered USB hub Raspian Buster, kernel version 4.19.66-v7l+ (from 'uname -r') Here are the details and other hopefully useful information. em28xx 1-1.2.1:1.0: DVB extension successfully initialized em28xx 1-1.2.1:1.0: DVB: registering adapter 0 frontend 0 (LG Electronics LGDT3306A VSB/QAM Frontend). dvbdev: DVB: registering new adapter (1-1.2.1:1.0) lgdt3306a 8-0059: LG Electronics LGDT3306A successfully identified tveeprom: has no radio, has IR receiver, has no IR transmitter tveeprom: audio processor is None (idx 0) tveeprom: TV standards PAL(B/G) NTSC(M) PAL(I) SECAM(L/L') PAL(D/D1/K) ATSC/DVB Digital (eeprom 0xfc) tveeprom: tuner model is SiLabs Si2157 (idx 186, type 4) Here is an excerpt from kernel messages via 'dmesg' (note errors on last 2 lines): Hauppauge supplied software finds about 15 channels. Using the same card and antenna in the same location under Windows with the ![]() There is good signal strength but lousy s/n ratio. Hi all! I am setting up MythTV for the first time.
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