See Ken's reply below. Doesn't seem that he thinks it is a software problem.
"Hello Philip
OK so the software can decode the H.265 stream, it just finds trouble after 24 hours? This may not be a problem with the software then ...
Does it resolve if you right-click in the video window and select Restart? Or open camera properties and OK. If so, maybe you can use the option on the Watchdog tab to restart the stream each X hours.
Thanks
Ken"
See my response below. Hopefully this will help him find the issue.
""Hi Ken,
The amount of time it takes to have issues varies. It could be 24 hours or it could be one or two hours. The issue does resolve itself temporarily with a reboot. What's odd is that live view work during this time and so do the email alerts. I have my alerts set to send me 5 pictures on motion and those pictures still come through even when the recording has a black or grey screen.
It does indeed seem to be a problem with the software as the issue appeared for several people after the BI updates. user i286 was able to resolve his issue by downgrading to 4.5.8.5 another user reported that their problem started on 10/03.
I think you can see the forum as a guest, I'll include the link below just in case but I have quoted the people having the same issue as me.
hevnsnt: "I also had this problem after the latest update. My cameras (IPC-HDW5231R-Z) were configured for H.265 (see img below) and was getting black on record. I moved moved my encode mode to H.264 and it is now working as expected. What was changed in the BI H.265 decoding?"
"When I moved all mine to H264 (see above) and forced all HW decode to off, mine is working perfectly. Make sure you try that first."
tspicer: "I too am getting the black screen on record playback but only on 2 of my 5 cams.. I will try and look into the settings.. All are on .265 . I found the issue this morning and Couldn't find a fix so I reset all cams by dropping power to the poe switch and all were playing back fine when I went to work. Come home for lunch and 1 has reverted to black. Started on 10/3." According to his signature he has 6 Dahua IPC-5231HDWR-Z
i286: "*Does NOT work after several hours longer testing...*
So, I think I'd like to report my findings so far, to be taken with a grain of salt.
Latest update of
Blue Iris recently, and I think issue started around then, but I was also tweaking cam settings so?!?
Anyway I am getting the EXACT same symptoms on all 4 of my cams as per this thread. Live view is great... only on recordings... weird.
Today I noticed one of my recent changes was to the hardware decoding.
I returned each cam to Default (from No) and then set the global options to Yes (H.264) - from off.
This seems to have returned my (new) recorded clips play back properly without any black or grey screens. New clips work in Android app good again
Will update if it turns out it does not work, but so far seems solid as usual again.
EDIT: I should note I am using almost mirror identical settings to OP, apart from double bitrate/25FPS
Edit2: doesn't work as permanent solution. Lasted slightly longer then usual tho before back to black screens"
After downgrading versions
"Almost a full day now on 4.5.8.5 with no problem in sight. I'll try locate some later version to see where it starts. I have done some updates from this one but can't remember what version I had last. Hopefully will be in Windows event history.
So good news. I'll email Ken about this thread. Can do some testing as required."
Let me know if you want me to leave my cam available for testing. ""
Maybe it may be best for others to email Ken regarding this issue also so he can troubleshoot?
2017-10-05_8-19-19 by philipgonzales3, on Flickr
Ill be changing my upgrades procedure from now on and backup up update files etc but I do not have the old versions currently. Thanks!
