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[Bug 34435] Re: [Dapper] Cairo and ATI RENDER extension cause scrambled buttons in UbuntuLooks

 

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On 2006-01-06T06:59:08+00:00 BenjaminBerg wrote:

There is a problem with drawing gradients in clearlooks. See
http://bugzilla.gnome.org/show_bug.cgi?id=325818

I'll attach a test case which I think reproduces the problem. (I tried different
clippings, until I got something that looked wrong).
This does not happen with the png backend.

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/0

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On 2006-01-06T07:00:17+00:00 BenjaminBerg wrote:

Created an attachment (id=4248)
testcase

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/1

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On 2006-01-06T07:01:17+00:00 BenjaminBerg wrote:

Created an attachment (id=4249)
rendered with the png backend

As you can see the test is rendered correctly with the png backend.

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/2

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On 2006-01-06T07:02:43+00:00 BenjaminBerg wrote:

Created an attachment (id=4250)
result using xlib

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/3

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On 2006-01-06T07:03:58+00:00 BenjaminBerg wrote:

Created an attachment (id=4251)
also using xlib

Sometimes I see this as a result of the testcase.

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/4

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On 2006-01-06T12:29:08+00:00 BenjaminBerg wrote:

Just tested without XRENDER and it is looking correctly then.

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/5

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On 2006-06-02T07:21:44+00:00 Johannes Hessellund wrote:

Anyone looking into this?

Ubuntu seems afected:
https://launchpad.net/distros/ubuntu/+source/xserver-xorg-driver-ati/+bug/34435
https://launchpad.net/distros/ubuntu/+source/xserver-xorg-driver-ati/+bug/38198

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/32

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On 2006-12-17T06:26:31+00:00 dcberg wrote:

Created an attachment (id=8144)
the gradients are not rendered in Gnome

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/80

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On 2006-12-17T06:32:14+00:00 dcberg wrote:

OK, Benjamin, I'm not yet too familiar with this.
Do you think this is the bug I'm also experiencing with my icons?
For everybody, who's not one of my brothers, I before attached an SVG (at least
I think I did) that is rendered badly in Gnome and what I blame Cairo for.
If this isn't the bug, is it Cairo at all?

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/81

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On 2006-12-17T09:07:23+00:00 dcberg wrote:

As for my _part_ of the bug, I figured out, that it is transformation matrices
of gradients that cause it.
to give you an example:

<linearGradient
       inkscape:collect="always"
       xlink:href="#linearGradient3813"
       id="linearGradient4074"
       gradientUnits="userSpaceOnUse"
gradientTransform="matrix(3.786847e-6,1.045166e-6,-1.045166e-6,3.786847e-6,-53.0238,-21.8569)"
       x1="37179696"
       y1="16832558"
       x2="19937692"
       y2="5225754" />

without the gradientTransform the display is just like in inkscape, but
obviously it's not the correct dislay.

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/82

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On 2008-04-03T12:16:08+00:00 Otaylor-redhat wrote:

This is almost certainly a server bug, not a Cairo bug (per se). So 
if any reporters can still reproduce this,the relevant information
is:

 - What version of the X server
 - What driver
 - What driver version
 - Any driver options? (For example, is EXA enabled instead of
   XAA)

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/91

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On 2008-04-03T12:20:45+00:00 Otaylor-redhat wrote:

As a data point, the test case works fine for me with git Xorg as
of 2008-04-01, with the patches from bug 15333 and bug 15345 applied
on an ATI rv350 using EXA.

(From the age of the bug I suspect that those EXA-specific patches
aren't relevant to the original bug report, though they do cause misrendering of 
cairo gradients.)

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/92

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On 2009-06-07T03:27:34+00:00 Chris Wilson wrote:

Old bug in the ATI driver.

Reply at: https://bugs.launchpad.net/gtk-engines/+bug/34435/comments/93


** Changed in: libcairo
       Status: Invalid => Won't Fix

** Changed in: libcairo
   Importance: Unknown => Medium

-- 
[Dapper] Cairo and ATI RENDER extension cause scrambled buttons in UbuntuLooks
https://bugs.launchpad.net/bugs/34435
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