ZoneMinder Forums

Hi all!
i recently found an old Samsung netbook and i thought i could use it as a fixed monitor hanged to the wall.
So i installed lubuntu 19.04 from scratch and used Firefox to connect to my zm web interface.
my already existant zm installation works well in my lan/wan/zmninja and video plays smooth.
What happens with my netbook is that often when i click on a camera Firefox starts using disk until it litterally freezes my netbook and the only chance i have is to power it down.
Other times it show the streaming video smoothy but as i switch to another camera the problem is likely to happen again. When this happen i can't do anything else with the netbook. zm logs don't show anything wrong but i guess this is normal.
No chances to make Montage work, it hangs my netbook so i guess the problem could be tied to hardware resources… but at least one cam at a time could be good too.
So my question is, did anybody else try something like that and got better result or knows of a possible problem/solution?

this is my netbook:
lubuntu 19.04
Intel atom N450 1.66Ghz
1gb ram
250gb hdd (no ssd)
Connected via wifi

here is my hardware and zm configuration if it could help
viewtopic.php?f=38&t=28845
Happy new year!

Lower the cam resolution. Try half of what you have. Will reduce shared memory use of which you do not have much.

When it does play the streaming video, df -h on my netbook shows a shm use of 4-5%
i thought this was normal since my netbook doesnt run zm it only connects to an existing server.
Maybe i should use zmninja better? i don't know if there's a version for ubuntu

Sounded like you had Zoneminder installed on the netbook. Or rather I did not fully read your post..

Anyway, Here is a firefox fix that may help:

Enter about:config in the address bar

scroll down to
browser.cache.check_doc_frequency 3
change the 3 to a 1

browser.cache.disk.enable True -> False
network.http.max-connections-per-server -> put a value of 100
network.http.max-persistent-connections-per-proxy -> 100 again
network.http.max-persistent-connections-per-server -> 100 again

This mande a difference! thanks!
now i can watch each camera and it's pretty smooth!
but montage still hangs. i don't know if there's something else i could tweak
this one was not present in Firefox:
network.http.max-connections-per-server -> put a value of 100
i guess it is:
network.http.max-connections 900
and i didn't change it