Hello ladies and gentlemen.
I have a new issue but I do not know its origin. I have upgraded from 13.10 to 14.04 but do not remember if I tried playing a 720p video since.
Anyway, what is happening is that those movies play fine but if I am trying to navigate, jump to specific time, go forward, etc, VLC spikes to 30 - 40% of CPU, the image goes black, no sound and I can have to wait up to 10 minutes to have the movie most of the time without sound. With Totem, it is the same problem.
I did go around the internet looking for a solution. I tried reverting from avconv to ffmpeg (but honestly, who knows why) reinstalled my drivers, reinstalled VLC, reset VLC options, reinstalled unbuntu-restricted-extra, xorg-server, ...
Any help is appreciated indeed!
Specs : Dell Inspiron 14Z, intel i5, 8Gb ram, intel graphic card, Ubuntu 14.04 64bits
Some interesting outputs :
When navigating through the movie with VLC :
/usr/lib/nux/unity_support_test -pOpenGL vendor string: Intel Open Source Technology CenterOpenGL renderer string: Mesa DRI Intel(R) Sandybridge Mobile
OpenGL version string: 3.0 Mesa 10.1.3
Not software rendered: yes
Not blacklisted: yes
GLX fbconfig: yes
GLX texture from pixmap: yes
GL npot or rect textures: yes
GL vertex program: yes
GL fragment program: yes
GL vertex buffer object: yes
GL framebuffer object: yes
GL version is 1.4+: yes
Unity 3D supported: yes
[h264 @ 0x7fec8624b040] mmco: unref short failure