[Bug 562293] Re: [Lucid] Poor scrolling performance in browser (Firefox and Chrome, possibly others)

[Øyvind Stegard]

Tried the Lucid RC in a live session from USB stick.. Scrolling
performance was abysmal in Firefox. So bad that I scrapped my plan to
actually install Lucid onto the hard-drive. ATI X1400 128MB graphics
card, system has 3GiB RAM. Strangely enough, when monitoring top while
scrolling, a process called "hd-audio0" seems to suck up excessive
amounts of CPU time (up to 50% on dual-core) in proportion to amount of
graphics activity. So looks like a freakin audio card driver is actually
using CPU whenever there are graphical operations going on (same things
happens when moving windows around). This is further confirmed by the
fact that audio crackles ever so slightly if I scroll fast while playing
some music. Note that I have not actually tested an installed version of
Lucid, but I find it strange that running from USB would consistently
affect the graphics performance in this way.

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[Lucid] Poor scrolling performance in browser (Firefox and Chrome, possibly others)
https://bugs.launchpad.net/bugs/562293
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