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MediaPortal 1
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Installation, configuration support
Channel scan finds un-encrypted channels but preview says NoSignalDetected
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<blockquote data-quote="mm1352000" data-source="post: 1049587" data-attributes="member: 82144"><p>Hello again T^2</p><p></p><p></p><p>Okay.</p><p></p><p></p><p>I agree - it matches perfectly.</p><p></p><p></p><p>From the log file it looks like TV Server is totally confused by the information it is receiving. The main reason is that Comcast seems to be broadcasting their full lineup information in-band in your area (my understanding is that is relatively unusual). Your scan timeout configuration is long enough to catch parts of the lineup info but not long enough to catch it in full. Hence the mixture of "Unknown..." and properly named channels, mixed up frequencies etc.</p><p></p><p></p><p>In your case I wouldn't attempt manual corrections. What I would do is this:</p><ol> <li data-xf-list-type="ol">Delete all channels.</li> <li data-xf-list-type="ol">Set SDT/VCT timeout to 600 (5 minutes) --><a href="http://wiki.team-mediaportal.com/1_MEDIAPORTAL_1/141_Configuration/TV-Server_Configuration/06_General#Scan_Tab" target="_blank">here</a><--.</li> <li data-xf-list-type="ol">Start a new "clear QAM cable" scan.</li> <li data-xf-list-type="ol">Cancel the scan after the first frequency where more than 30 channels are found. I can see that physical channel 10 (frequency 193.25 MHz) appears to be carrying the full lineup info. Physical channels 7, 8 and 9 may also carry it. Definitely cancel the scan before channel 11. If you haven't seen 30+ channels found with the above configuration before that point then something is wrong. Continuing the scan would not help.</li> </ol><p>I expect (hope) that should enable all your channels to be found complete with names and channel numbers in ~15 minutes rather than 30+.</p><p></p><p></p><p>It isn't really a fair comparison for a number of reasons. Briefly...</p><p>US TV is totally different to TV in the rest of the world. Different standards, different conventions, different lingo... different.</p><p>The MediaPortal team and community has always been dominated by Europeans. We (I include myself, even though I'm from NZ) have struggled to understand and integrate US TV support with limited ability to test, limited feedback, limited understanding of that feedback. It is tough all around.</p><p></p><p>WMC on the other hand...</p><p>MS threw a lot of resources - developers, testers and money - at WMC7. A large proportion of the team were also Americans, meaning they know and have used US TV for years. I could be wrong (having never used WMC for myself) but I think WMC downloads MS-paid-for-perfect lineup info rather than scanning. In other words, WMC7 is in a totally different league to MP.</p><p></p><p>N-PVR I don't know so much about. I have the impression that sub was based in the US at one time. I'm not sure if N-PVR attempts to scan or download; whether it grabs channel names and numbers (as MP attempts to do) or whether you have to enter all the names and numbers for your channels manually. The code is not open source, I've never used it, and I've never lived in the US so saying anything further would be speculation...</p><p></p><p>In short, MP probably could do the same if our team had the same resources and knowledge. We don't... but we do the best we can.</p><p></p><p></p><p>Yes... but we've always had a chronic shortage of US-based developers and testers. Further, we also completely rewrote the ATSC (US TV) scanning code for MP 1.5 (when we added CableCARD tuner support). Before MP 1.5 almost all channels would have been named "Unknown..."; now as you can see we get some of those details. I'd like to think we're improving... but that isn't to say there aren't bugs with lots of room for further improvement.</p><p></p><p></p><p>Sure. I can only repeat what I said above.</p><p></p><p></p><p>Why did you think that a fresh install would help? That would be the last thing I'd do...</p><p></p><p>mm</p></blockquote><p></p>
[QUOTE="mm1352000, post: 1049587, member: 82144"] Hello again T^2 Okay. I agree - it matches perfectly. From the log file it looks like TV Server is totally confused by the information it is receiving. The main reason is that Comcast seems to be broadcasting their full lineup information in-band in your area (my understanding is that is relatively unusual). Your scan timeout configuration is long enough to catch parts of the lineup info but not long enough to catch it in full. Hence the mixture of "Unknown..." and properly named channels, mixed up frequencies etc. In your case I wouldn't attempt manual corrections. What I would do is this: [LIST=1] [*]Delete all channels. [*]Set SDT/VCT timeout to 600 (5 minutes) -->[URL='http://wiki.team-mediaportal.com/1_MEDIAPORTAL_1/141_Configuration/TV-Server_Configuration/06_General#Scan_Tab']here[/URL]<--. [*]Start a new "clear QAM cable" scan. [*]Cancel the scan after the first frequency where more than 30 channels are found. I can see that physical channel 10 (frequency 193.25 MHz) appears to be carrying the full lineup info. Physical channels 7, 8 and 9 may also carry it. Definitely cancel the scan before channel 11. If you haven't seen 30+ channels found with the above configuration before that point then something is wrong. Continuing the scan would not help. [/LIST] I expect (hope) that should enable all your channels to be found complete with names and channel numbers in ~15 minutes rather than 30+. It isn't really a fair comparison for a number of reasons. Briefly... US TV is totally different to TV in the rest of the world. Different standards, different conventions, different lingo... different. The MediaPortal team and community has always been dominated by Europeans. We (I include myself, even though I'm from NZ) have struggled to understand and integrate US TV support with limited ability to test, limited feedback, limited understanding of that feedback. It is tough all around. WMC on the other hand... MS threw a lot of resources - developers, testers and money - at WMC7. A large proportion of the team were also Americans, meaning they know and have used US TV for years. I could be wrong (having never used WMC for myself) but I think WMC downloads MS-paid-for-perfect lineup info rather than scanning. In other words, WMC7 is in a totally different league to MP. N-PVR I don't know so much about. I have the impression that sub was based in the US at one time. I'm not sure if N-PVR attempts to scan or download; whether it grabs channel names and numbers (as MP attempts to do) or whether you have to enter all the names and numbers for your channels manually. The code is not open source, I've never used it, and I've never lived in the US so saying anything further would be speculation... In short, MP probably could do the same if our team had the same resources and knowledge. We don't... but we do the best we can. Yes... but we've always had a chronic shortage of US-based developers and testers. Further, we also completely rewrote the ATSC (US TV) scanning code for MP 1.5 (when we added CableCARD tuner support). Before MP 1.5 almost all channels would have been named "Unknown..."; now as you can see we get some of those details. I'd like to think we're improving... but that isn't to say there aren't bugs with lots of room for further improvement. Sure. I can only repeat what I said above. Why did you think that a fresh install would help? That would be the last thing I'd do... mm [/QUOTE]
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