Bug#408460: iceweasel: pages with non-moving backgrounds scroll very slowly

[Michael Gilbert]

On Thu, 24 Dec 2009 16:33:46 +0100 Mike Hommey wrote:

> Version: 3.0.1-1
> 
> Hi,
> 
> Sorry for the late reply.
> 
> On Tue, Jan 30, 2007 at 12:16:21AM -0500, Michael Gilbert wrote:
> > On 1/29/07, Mike Hommey  wrote:
> > >I also heard activating EXA instead of XAA in the X configuration
> > >improved the performance.
> > 
> > i tried EXA with the nv X driver (http://wiki.x.org/wiki/ExaStatus),
> > and it didn't make any difference with the pages that are slow to
> > scroll/render on iceweasel.
> 
> It should have gotten much much better with iceweasel 3.0. I'll close
> this bug, but please feel free to reopen if that is not true.
> 
> On Wed, Jan 14, 2009 at 02:12:43AM +0300, Dmitry Semyonov wrote:
> > On Fri, 26 Jan 2007 07:48:03 +0100, Mike Hommey wrote:
> > 
> > > A workaround for this would be to set MOZ_DISABLE_PANGO. See the
> > > /usr/doc/share/iceweasel/README.Debian file.
> > 
> > Currently, /usr/share/doc/iceweasel/README.Debian states the following:
> > 
> > "From version 3.0~b4-1, pango is the only font backend upstream.
> > MOZ_DISABLE_PANGO now has no effect."
> > 
> > I'm not sure if I encountered the same issue, but it looks pretty
> > similar, except that it is caused by non-moving _foreground_ rather
> > than background.
> > 
> > Scrolling in Gmail becomes really slow when reading conversation
> > thread with several messages. In this case, a tool-tip with next
> > message sender name is displayed in the right down corner of the
> > browser window, and the whole page is scrolled under the tool-tip.
> > 
> > BTW, from my point of view the severity should be higher than wishlist
> > because the issue causes major usability deficiency for such popular
> > web application like Gmail.
> 
> While I do understand it could be a problem, I do think it is not the
> same problem. Please feel free to file a new bug if that still happens
> with iceweasel 3.5.

from my perspective, this has not been an observable problem for a
while now, so i concur with the doneness.  thanks!

mike