High cpu usage on the ecore_x_vsync

[Claudius Chan]

Hi to all,
This is my first post in the mailing list, if any violation on the
mailing-list rules do let me know.

Recently I just updated my enlightenment with the devel/efl port.
Everything works fine. Except that the CPU 100% high on ecore_x_vsync. I
not sure if this is the issue on the nvidia driver or enlightenment bugs.
If you guys need any help on this issue do let me know.

Thanks in advance.
Claudius Chan

Top command shows:
====== ======
PID USERNAME    THR PRI NICE   SIZE    RES STATE   C   TIME    WCPU COMMAND
 1578 chan          2 106    3   116M 42588K CPU1    1  11:13 100.00%
ecore_x_vsync
 1677 chan         46  23    3   914M   574M uwait   1   1:06   9.86%
firefox
 1568 chan          3  20    0   427M   136M uwait   1   0:50   3.37%
enlightenment
 1566 chan          1  21    0   930M 57076K select  0   0:33   2.20% Xorg
 1575 chan          1  39   19 57236K  7584K select  1   0:02   0.00%
efreetd

My Testing Hardware info
====================
Hardware: Sony VAIO CS Laptop
Graphic Card: Nvidia 9300M GS
Memory: 2GB
Processor: Intel Core 2 Duo P8400

OS:                            Freebsd10.1-Release
Xorg-Server Version: 1.12.4_9,1
Desktop:                   enlightenment
nvidia-driver:             340.46