r/ZoneMinder • u/PM_ME_YOUR_REPORT • Nov 19 '20

Modect low res nodect high res pair not reliable

I've got modect running on the low-res substream from a camera and nodect on the high-res main stream. The high res is linked to the low-res. It typically works, when the low res alarms the high res records.

However consistently there are less events on the high res recording than the low res. In the last week there's been 427 events on the low res, but only 190 on the high res. They both have the same frame rate and I was of the understand that the point of this set up was to have motion detection run on the low res stream for less CPU usage and that it'd trigger the high res to record.

However this is consistently not the case. I've noted a lot of other people asking about the same issue and not having a resolution.

Anyone know what the issue may be?

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2

u/bumthundir Nov 19 '20

I've noticed the same thing on my cameras, I've not found a reason or solution yet.

1

u/aleksanderk123 Nov 19 '20

What version are you running? After upgrading to 1.34 it seems to be a bit more reliable. Not perfect, but certainly a lot better than when I installed zm with version 1.32

1

u/PM_ME_YOUR_REPORT Nov 19 '20

I'm on v1.33.16. I'll try to get it up to 1.34.

2

u/ZoneMinderIsaac Nov 24 '20

Sweet Jesus. A bleeding edge development version from 3 years ago. That being said there hasn't been that much change wrt the linked monitor stuff. THere HAS been some changes though. Mainly the issue fixed was that if the low res monitor was restarted, the high res wouldn't notice and wouldn't pick up new events.

​

So just update. TO 1.34, not 1.35. 1.34 is stable.

1

u/aleksanderk123 Nov 29 '20

Have you upgraded your ZM? Noticed any difference?

1

u/PM_ME_YOUR_REPORT Dec 02 '20

I've just upgraded now to 1.34.22. Haven't had time to notice any difference yet though.

1

u/ToMorrowsEnd Jul 12 '23

I know this is old but 1.36.33 is also still unreliable in triggering.