Mouse lost frame, Graphics driver problem?

[Ccc]

Hi there, I recently installed the Yosemite GM.

I found that the mouse sometimes lost frames.

When you are moving the cursor,

the cursor will stop for like 0.5second and then start moving again.

When you double click file or folder, it's like just one click, nothing opens(double click should open file or folder), seems it lost the second click.

This happens with about 10seconds period, really anoying.

 

Some people say it might be caused by improperly framebuffer patch of Graphics card.

Well my pc has ATI 4330, which is working fine in 10.8 and 10.9 with patched framebuffer.

With beta version of Yosemite and some DP version, this losing frame effect also appears.

I remember that in beta Yosemite,

if I use the DP4 version of ATI*.kext, the mouse is working fine.

But in GM, I also tried to use the DP4 ATI*.kext, but still the mouse lost frame.

Any suggestions?

 

 

PC spec:

Dell INspriong 1464

i5-430m

ATI Radeon 4330(512M)

ALC269 sound

 

Framebuffer patch in AMD4600 (working in 10.8 and 10.9, for yosemite DP4 it works fine, but for GM the mouse lost frame):

original:

02 00 00 00 40 00 00 00 09 01 00 00 02 01 00 03
02 00 00 00 00 01 00 00 09 01 00 00 20 01 02 02
00 04 00 00 04 03 00 00 00 01 00 00 10 00 01 01

patch:

10 00 00 00 10 00 00 00 00 01 00 00 00 10 02 06 
00 08 00 00 00 02 00 00 00 71 00 00 20 01 01 02 
02 00 00 00 40 00 00 00 09 01 00 00 12 04 00 01