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Date: Sun, 21 Nov 2010 13:39:49 -0500
From: Joe Marcus Clarke <marcus@freebsd.org>
Organization: FreeBSD, Inc.
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To: Michal Varga <varga.michal@gmail.com>
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Cc: gnome@freebsd.org
Subject: Re: Cairo 1.10 broken for nvidia users
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On 11/21/10 1:02 PM, Michal Varga wrote:
> Hello,
> 
> cairo 1.10 update introduces a terrible performance hit and other bugs
> for at least nvidia users. Workspace switching takes whole seconds,
> window scrolling tears and jumps, some applications take forever to just
> redraw, all depressed GTK buttons are drawn few pixels off, and this is
> probably just the start. Happens both with and without GL backend
> enabled.
> 
> Downgrading to cairo-1.8.10_1,1 returns everything back to normal, could
> anyone else confirm?
> 
> On related note, this might be of some importance, see further in the
> thread:
> 
> http://www.nvnews.net/vbulletin/showthread.php?t=156885
> 
> Excerpts:
> 
> "It seems cairo 1.10 causes the NVIDIA driver to hit lots of CPU
> fallback code. Using 1.8 returns performance back to normal on all
> fronts."
> 
> "Fedora's cairo doesn't include cairo-1.10.0-buggy_gradients.patch, so
> file a bug with Fedora's bugzilla."
> 
> 
> Anyway, I didn't test the mentioned patch yet, as I need a working
> system atm, but planning to get to it eventually, if nobody else
> checks/confirms sooner.

Can anyone confirm this patch?  The patch can be downloaded from:

http://repos.archlinux.org/wsvn/packages/cairo/trunk/cairo-1.10.0-buggy_gradients.patch?op=dl&rev=100207&peg=100207&

Joe

-- 
Joe Marcus Clarke
FreeBSD GNOME Team	::	gnome@FreeBSD.org
FreeNode / #freebsd-gnome
http://www.FreeBSD.org/gnome