UNCONFIRMED 73805
High cpu usage when scrolling with integrated graphics 
https://bugs.webkit.org/show_bug.cgi?id=73805
Summary High cpu usage when scrolling with integrated graphics
alessandro
Reported 2011-12-05 01:50:26 PST
hello everyone i ve noticed in the latest nightly build that i cannot enable full page accelerated drawing in debag menu ,also scrool on some webpage is choppy and never as smooth as in chrome! i ve disabled all plugins and i only use two extension(last pass and helvetica all the world) Choppy scrool is the same in safari stable...and uses more cpu than other browser. i ve also tried deleting safary folder in library and deleted prefs! sorry for my bad english thanks everyone
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Simon Fraser (smfr)
Comment 1 2011-12-05 12:03:26 PST
Please provide URLs of pages that have bad scrolling, the exact nightly versions that you are testing, and details of your OS and hardware.
alessandro
Comment 2 2011-12-06 11:20:58 PST
it happens on all websites (eg macupdate.com) today i made some more experiments i used gfcardstatus and i solved the problem (well so so) : choppy scrool happens with intel card smooth scrool with nividia so i assume is a driver problem anyway i tested this with a 2010 macbook pro (core i 5 + intel hd / nividia 330)
alessandro
Comment 3 2011-12-06 11:22:02 PST
os: lion 10.7.2 even tried 10.7.3 no difference best regards everyone and sorry for my bad english!
Simon Fraser (smfr)
Comment 4 2011-12-06 11:23:34 PST
http://codykrieger.com/gfxCardStatus
Radar WebKit Bug Importer
Comment 5 2011-12-06 11:24:29 PST
<rdar://problem/10535701>
alessandro
Comment 6 2011-12-06 13:59:21 PST
yeah i used than app another experiment scrool on my mac mini 2011 with intel hd3000 is as smooth as with geforce 330 so i m quite sure it s a bad intel hd(not 3000) driver the problem! maybe it s not powerful enough??
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