EPG Update Problems

[chrisatheneck]

I think I could do with a bit of help if somebody could oblige.
PVR is having trouble updating the EPG overnight.
Between ~3-7 days after a full update gaps start appearing. A manual update only scans one frequency, updates a number between single digits up to a few thousand of listings and is likely to wipe some previously included, correct listings of channels not even broadcast over the frequency it has updated from. These sometimes showing gaps or alternatively showing “no listings”.
The overnight updates do seem to be doing something as they can also delete previously correct listings and surprisingly reinstate recordings of programmes in a series that I have already told it I do not want it to record.
Update: Since I wrote this the EPG update has failed after 1 day with massive gaps appearing where there were no gaps yesterday.

[mvallevand]

Have you tried increasing the scan time so you don't just get now next on some channels?

Martin

[chrisatheneck]

I haven't come across an option to do that. Where might I find it?

[chrisatheneck]

I haven't come across an option to do that. Where might I find it?

If it makes things any clearer, this doesn't seem to be a now or next problem. I restarted my PC, cleared the EPG (which seems to help though I might ber kidding myself) and did a full manual reload in the early hours of the 5th. I checked that it had loaded by clicking through the days of the week showing the listings on channels 1-14 from midnight to 3am each day. No gaps. There was a scheduled automatic update at 4:10am. The next day there were a number of gaps in the EPG from around 1:00am on the 6th which is around 21 houes after the scheduled update and which weren't there immediately after the manual update.

[sub]

I haven't come across an option to do that. Where might I find it?

On the Settings->Guide page, click the cog at the right side of the DVB EPG item. Maybe try setting it to 90.

[chrisatheneck]

I haven't come across an option to do that. Where might I find it?

On the Settings->Guide page, click the cog at the right side of the DVB EPG item. Maybe try setting it to 90.

That's interesting. It shows the full list of frequencies it checks when I do a restart/wipe/full EPG reinstall. But when it has already started to go "wrong" a manual EPG update only uses 1 frequency. Usually the first, occasionally the second. I suppose I'll have to see if those boxes are still checked next time it fails after an scheduled update.

[sub]

Unless you've explicitely enabled other frequencies, it should scan each frequency.

In your case, it looks like the tuner was in use, so it was only able to use the one frequency that the tuner was already using.

Code:

021-08-06 04:10:36.876    [DEBUG][14]    No C:\Users\Public\NPVR-data\scripts\UpdateEPG.bat file found
2021-08-06 04:10:36.902    [DEBUG][14]    Doing EPG update from broadcast DVB/ATSC EPG
2021-08-06 04:10:36.919    [DEBUG][14]    CaptureSource.LoadAll()
2021-08-06 04:10:36.922    [DEBUG][14]    Number of broadcastEPGChannels: 144
2021-08-06 04:10:36.922    [DEBUG][14]    broadcast channel: BBC ONE W Mid
2021-08-06 04:10:36.923    [DEBUG][14]    captureSourceOID: 25
....
2021-08-06 04:10:36.933    [DEBUG][14]    Checking if multi-record possible...
2021-08-06 04:10:36.933    [DEBUG][14]    EPG scan skipped for locator. Device is in-use. Locator:
<tuning>
  <type>DVB-T</type>
  <locator>
    <frequency>650000</frequency>
    <bandwidth>8</bandwidth>
  </locator>
  <service_id>100000</service_id>
  <tsid>4165</tsid>
  <onid>9018</onid>
  <service_type>1</service_type>
  <provider></provider>
</tuning>

[sub]

The DVB EPG update only ever tries to use the device the channel was originally scanned in on. It doesn't look for other available tuners. It's best to set your EPG update to happen at a time you're unlikely to be recording. The default is like 3am, which is a pretty safe bet for most users.

[chrisatheneck]

Unless you've explicitely enabled other frequencies, it should scan each frequency.

In your case, it looks like the tuner was in use, so it was only able to use the one frequency that the tuner was already using.

Code:

021-08-06 04:10:36.876    [DEBUG][14]    No C:\Users\Public\NPVR-data\scripts\UpdateEPG.bat file found
2021-08-06 04:10:36.902    [DEBUG][14]    Doing EPG update from broadcast DVB/ATSC EPG
2021-08-06 04:10:36.919    [DEBUG][14]    CaptureSource.LoadAll()
2021-08-06 04:10:36.922    [DEBUG][14]    Number of broadcastEPGChannels: 144
2021-08-06 04:10:36.922    [DEBUG][14]    broadcast channel: BBC ONE W Mid
2021-08-06 04:10:36.923    [DEBUG][14]    captureSourceOID: 25
....
2021-08-06 04:10:36.933    [DEBUG][14]    Checking if multi-record possible...
2021-08-06 04:10:36.933    [DEBUG][14]    EPG scan skipped for locator. Device is in-use. Locator:
<tuning>
  <type>DVB-T</type>
  <locator>
    <frequency>650000</frequency>
    <bandwidth>8</bandwidth>
  </locator>
  <service_id>100000</service_id>
  <tsid>4165</tsid>
  <onid>9018</onid>
  <service_type>1</service_type>
  <provider></provider>
</tuning>

The plot thickens. Just checked and at that time 3 programmes were being recorded. I have 4 tuners.

[sub]

The plot thickens. Just checked and at that time 3 programmes were being recorded. I have 4 tuners.

As I mentioned, EPG update is a special case - it only happens on the specific tuner that was originally used to scan the channel in. It wont use another available tuner. If one of those 3 programmes was happening on the tuner it needed for the EPG update, then you'll only get the listings for the frequency it's already tuned to.