OK. Tested NEW updates of INTEL video drivers (NO COMPILING) on ACER
ASPIRE 5315. First, It's NOT a kernel issue. It is indeed in the layer &
assembly of graphics at certain frequencies & speeds. It is a
communication mismatch between compiz & intel video. However, after
updating & correcting a few things here it is. I ran Ubuntu 8.10 Kernel
2.6.27-11-generic. Then I turned OFF ALL graphic enhancements;
System>Preferences>Appearances>Visual Effects>None. In Synaptic Package
Manager add search for; RESTRICTED, BACKPORTS, HEADERS for your current
generic Kernel. Restart.  Then I opened a terminal to verify increase in
FPS. (GLXGEARS). Increased from 600fps to 910fps. I tested Open Arena,
Star Trek HM, Unreal Tournament 2004, Chromium & Star Wars Jedi Knight 2
(WINE). ALL fine! Graphics worked well at 640x480 & 800x600. I've tried
this on two machines. Please let me know if this IS INDEED working for
anyone else. Thank You, Jay

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[i965, etc.] Poor graphics performance on Intel
https://bugs.launchpad.net/bugs/252094
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