I saw this behavior with catalyst 11.5 (fglrx 8.850) on HD 4290. I
updated to catalyst 11.7 (fglrx 8.872) and at the same time updated to
flash 11 beta.
After restarting firefox I still had the slow performance, so I have to
conclude that it was the fglrx upgrade that resolved it, since I didn't
s
Correction: "Natty was installed via i386 alt disc in expert mode".
I forgot to mention kernels I tried were 2.6.38.8-generic and
2.6.38.10-generic.
I also just reinstalled natty via amd64 alt disc in expert mode on the
same hardware. The same issue persists there for the same two kernels.
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Y
This is not solely a problem with laptops. I see the same behavior on an
lvm encrypted partition with separate raid1 /boot partition with a fresh
install of natty. Natty was installed via i386 x64 alt disc in expert
mode on a SuperMicro 7046T-H6R SuperServer with an ATI 5870 card.
I did *not* see
FYI ati-linux-bugs #1434 no longer exists at ati.cchtml.com, because the
web hosting of that site has just changed and the old database could not
be restored.
Anybody that has the old bug data should please resubmit to
ati.cchtml.com.
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