kdenlive rendering problem

[actionist]

i am using kubuntu gutsy/amd64/2Gb memory-- whenever i try to render video more than about ten minutes duration, the system crashes-- total shutdown of computer-- I am a filmmaker and I want to entirely shift to open source, but this last step is not working! :(
I tried the render in cinelerra too, but the same thing is happening there too. Please help.

[cotcot]

I have (ubuntu) on amd64 /2GB as well. Rendering in kdenlive and cinelerra works fine. However the longest video i have rendered is 18 minutes. So basically it should be possible. Before i had 1 GB and that worked as well. It is using about 600 MB ram.

I had once crashes because i had not enough free space on the hdd. So maybe check free space in folder in use.

Maybe you get useful information when you start kdenlive or cinelerra in terminal. Make sure that you get the terminal window visible when the computer is going to crash (as far as you can estimate it of course).

[actionist]

Thanks for replying. i changed my tmp folder to a partition with a lot of free space-- but still the computer crashes. It may have to do with some hardware issue, but I have no way of figuring it out.

[eye208]

These types of crashes may be caused by bad RAM. Run memtest.

[redmansk8]

Hello It could be bad memory or not enough of memory.

[cotcot]

2 GB is more than enough ram. I see my ram consumption not going above 600 MB when i use kdenlive even with 64bit.
You are not working on a FAT filesystem (where there is a single file limit of 4GB) ?

[eye208]

You are not working on a FAT filesystem (where there is a single file limit of 4GB) ?
Even if he did, this would never cause a total computer shutdown.

This is most likely a severe hardware or driver malfunction.

[dad311]

Sounds like bad hardware to me. Ive render 2 hour movies in both Cinelerra and kdenlive and never had an issue. Bad Ram or maybe not enough power supply.