Since 15.04 - 15.10 (both has the same issue) using Pepper Flash with Chrome or Firefox leads to CPU overload. Firefox is more problematic as it does not thread things, thus leading to very laggy computer. Chrome handles it "better" by threading and I can at least watch a youtube video without it being too slow. But in both cases this is not a good solution.

I wonder though if it is not H264 that is the problem. Indeed, when watching a Youtube video at 360p, the issue does not appear, only when looking at 720p or 1080p videos does this leads to a problem.

I could not find anything online about it.

My first guess would be: 1) PepperFlash issue 2) H264 library issue 3) Graphic card not taking up the stream to decode and Ubuntu sending it all to the CPUs (but a raspberry pi can decode 1080p vids ! I have an i7 O.o !)

Help !


This was linked to a problem I had with my RAM.

Solved here: High CPU load, low core usage, (ECC) memory error in kernel

  • Not a gored practice to only share the link. Include the Essential part of the solution, then share the link for reference and more detail – Mostafa Ahangarha May 20 '16 at 7:27

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.