Comment 106 for bug 217580

Sorry,
    I watched the wrong bug on mozilla.

The culprit, as Sack pointed out, should be this one:

https://bugzilla.mozilla.org/show_bug.cgi?id=427431

Great Bernhard, I see that you already pointed out your work, good :)

2009/5/3 Stefano Doni <email address hidden>

> Sorry Alex,
> I didn't checked the linked bugs actually!
>
> I'm very glad that eventually we all have been able to track this down!
>
> I'm not sure this might be a driver issue, IMHO. So far there have been
> reports of users with Nvidia, Intel and ATI cards (fglrx, see first post of
> Mozilla bug 422330). A friend of mine keep telling me about this slowness on
> ATI + radeonhd, also.
>
> I think that users that own older PCs tends to notice this much more - my
> CPU is a 1.6 GHZ AMD Athlon, and scrolling is VERY slugghish. At work I use
> a much more recent notebook with ATI + radeon, and the scrolling slowness is
> still there, but a bit less relevant.
>
>
> So, we've likely found the long standing bug that is affecting us, good. On
> bugzilla I see the status is NEW, and no more activity since August 2008.
>
> Alex, is there something we can do to speedup this bug fixing? Perhaps
> aatdark work can be useful, since it provides a clean testcase? Will FF 3.5
> still have this bug?
>
> Thanks
>
>
> 2009/5/2 Alexander Sack <email address hidden>
>
> >Did you find that gmail uses this kind of element? This might point
>> directly
>> to a firefox bug?
>>
>> well. i already said above that fixed positioning is known to have
>> performance issues (and i gave bugzilla IDs above for them); besides
>> from that its also a driver issue, because it works better with some
>> drivers; the fact that other browsers dont hit this, doesn't mean that
>> the drivers are right.
>>
>> --
>> Slow performance with Gmail
>> https://bugs.launchpad.net/bugs/217580
>> You received this bug notification because you are a direct subscriber
>> of the bug.
>>
>> Status in The Mozilla Firefox Browser: Unknown
>> Status in XUL + XPCOM application runner: Confirmed
>> Status in “firefox-3.0” source package in Ubuntu: Invalid
>> Status in “xulrunner-1.9” source package in Ubuntu: Fix Committed
>>
>> Bug description:
>> Binary package hint: firefox-3.0
>>
>> When scrolling in Gmail (and other websites however its not as noticable)
>> the scrolling performance is terrible. There is a slight lag from when it
>> starts to scroll to when it actually does scroll. On my Windows XP machine
>> it is MUCH faster (basically instant). This is present with both Compiz
>> enabled and disabled.
>>
>> ProblemType: Bug
>> Architecture: i386
>> Date: Tue Apr 15 01:01:46 2008
>> DistroRelease: Ubuntu 8.04
>> NonfreeKernelModules: nvidia
>> Package: firefox-3.0 3.0~b5+nobinonly-0ubuntu1
>> PackageArchitecture: i386
>> ProcEnviron:
>>
>> PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
>> LANG=en_US.UTF-8
>> SHELL=/bin/bash
>> SourcePackage: firefox-3.0
>> Uname: Linux 2.6.24-16-generic i686
>>
>
>