Comment 131 for bug 177492

Hi all,
throwing this in as the above suggestions haven't done anything to help my situation. Firefox performance using certain pages (gmail, slashdot comments) can safely still be called balls-achingly, if not balls-crunchingly, slow :(

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)

Relevant bits of xorg.conf:

Section "Device"
 Identifier "Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller"
 Driver "intel"
 Option "AccelMethod" "exa"
 Option "MigrationHeuristic" "greedy"
 Option "ExaNoComposite" "true"
EndSection

Section "Monitor"
 Identifier "Generic Monitor"
EndSection

Section "Screen"
 Identifier "Default Screen"
 Device "Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller"
 Monitor "Generic Monitor"
 DefaultDepth 24
 SubSection "Display"
  Depth 24
  Modes "1280x800"
  Virtual 1280 1824
 EndSubSection
EndSection

/etc/environment includes INTEL_BATCH="1":
$ echo $INTEL_BATCH
1

Adding the INTEL_BATCH value increased glxgears from ~300fps to >600fps, but no improvement to firefox scrolling, which has stood still at under 1 fps on the two sites mentioned above. I've tried with accelmethod xaa, and with compiz turned on and off - generally the desktop has remained resonably responsive with any options I can throw at it, but firefox hasn't got any better.