I have a QNAP 251+ Station and using the latest HD Station version (3.1.6). I installed the openpht 1.7.1 package and tried to playback some files (Game of thrones 1080p 24fps DTS). I have the problem that from time to time the video is stuck for a short period (1-2s) and then plays normal. Sometimes it happens every minute or so and sometimes the whole video is played back without stuttering. I tried nearly every setting in the video settings but it didn’t solve the problem. Then I found out that, when the video is stuck the memory usage of the qnap is much higher than normal. ( I attached a screenshot, every time when the memory usage is on top of that spike, the video is stuck, the usage drops and then again. Sometimes it happens only a few times and sometimes happens for half an hour.
Would be grateful for any hints to solve this problem.
regards
Erich
I have a QNAP 251+ Station and using the latest HD Station version (3.1.6). I installed the openpht 1.7.1 package and tried to playback some files (Game of thrones 1080p 24fps DTS). I have the problem that from time to time the video is stuck for a short period (1-2s) and then plays normal. Sometimes it happens every minute or so and sometimes the whole video is played back without stuttering. I tried nearly every setting in the video settings but it didn’t solve the problem. Then I found out that, when the video is stuck the memory usage of the qnap is much higher than normal. ( I attached a screenshot, every time when the memory usage is on top of that spike, the video is stuck, the usage drops and then again. Sometimes it happens only a few times and sometimes happens for half an hour.
Would be grateful for any hints to solve this problem.
regards
Erich
This may belong in the QNAP forum instead of here specifically. Can you provide debug logs during this period? We need much more information than just the memory usage graphs. That tells us nothing except that your QNAP was using more memory than usual. If you had another process eating up your I/O that’s going to impact your OpenPHT experience.
There were no other heavy processes running, the spikes appeared right after starting playback. Tried it several times.
Which log files should I provide ?
I thought maybe it is a known issue and can be fixed by some settings …
I had this problem too before, have you tried to change this parameters ? :
Preferences for Playback -> Advanced Video -> Sync playback to display -> activated
Preferences for Playback -> Advanced Video -> Adjust display refresh rate to match video -> activated
Thanks for your tip. I already tried that. These settings helped to get smoother playback and no flickering, but I still got the memory spikes and the video and audio is completely stuck for 1-2s, not only flickering.
Which are the important log files I should provide ?
Thanks for your tip. I already tried that. These settings helped to get smoother playback and no flickering, but I still got the memory spikes and the video and audio is completely stuck for 1-2s, not only flickering.
Which are the important log files I should provide ?
thanks
regards
Erich
Log files (ensure that you enable “debug logging in Preferences → System → advanced” and try to reproduce the issue)
In general, the log file for the various Linux versions of Plex Home Theater will be found under:
~/.plexht/temp/
You need to copy either the:
plexhometheater.old
or
plexhometheater.log.old
If Rasplex/OpenPHT has restarted from crash or reboot then copy the “plexhometheater.old.log”.
If Rasplex/OpenPHT is still running while you are debugging then copy “plexhometheater.log”.
Put the contents in pastebin. To do this:
Either:
Copy the contents of the log file and paste into http://pastebin.com/ Give it a Paste Name / Title Click SUBMIT button. It will then sho wyou the resultinging paste bin page. Copy the URL (eg http://pastebin.com/a4PLs1mX) to include with your bug report.
Or:
Using a pastebin script or by copying the output of “cat” from the buffer.
A very useful way to trim down the logs is “grep -i error /(full path to logs)/plexhometheater.log” to submit only errors.
@hundsmiachn:
One thing of interest that you don’t mention in your posts is the PMS server used to stream the media to OpenPHT.
One reason I ask about this is that NAS systems such as your QNAP are normally used more as file/media servers rather than simple playback clients, and if you happen to be running your PMS on the same hardware as openPHT that could definitely explain higher memory usage peaks than we’d expect from just running OpenPHT.
Other things that could contribute to high memory and CPU usage naturally include high bitrate in the media files and/or unusual complexity of the media encoding (with HEVC/x265 as the worst possible case).
Best regards: dlanor
