[Dapper] Cairo and ATI RENDER extension cause scrambled buttons in UbuntuLooks

[Sebastian Kapfer]

Video corruption is being observed in the UbuntuLooks theme which uses Cairo, on ATI video cards.

Certain types of buttons render incorrectly with the new ”Human“ theme. I cannot reproduce this with other themes.

It seems like only buttons with "text beside icon" are affected. Those with text below icon aren't.

Moving the mouse across the button (thus highlighting it) will remove the mess. Forcing a redraw (such as minimizing and restoring the window) has a certain chance of recreating the mess.

The bug does not occur in Xnest or with the vesa driver. It does with “radeon” and “ati” (which seem to be the same thing). Even though it might be a driver issue, I'm reporting this on ubuntulooks because I have not seen any such thing before with my video card.

[Fixed in current Ubuntu, but backport of the fix is needed for Dapper]

[BenjaminBerg (benjamin-sipsolutions)]

Created an attachment (id=4248)
testcase

[BenjaminBerg (benjamin-sipsolutions)]

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

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

[BenjaminBerg (benjamin-sipsolutions)]

Created an attachment (id=4250)
result using xlib

[BenjaminBerg (benjamin-sipsolutions)]

Created an attachment (id=4251)
also using xlib

Sometimes I see this as a result of the testcase.

[BenjaminBerg (benjamin-sipsolutions)]

Just tested without XRENDER and it is looking correctly then.

[Sebastian Kapfer (caci)]

Certain types of buttons render incorrectly with the new ”Human“ theme. I cannot reproduce this with other themes.

It seems like only buttons with "text beside icon" are affected. Those with text below icon aren't.

Moving the mouse across the button (thus highlighting it) will remove the mess. Forcing a redraw (such as minimizing and restoring the window) has a certain chance of recreating the mess.

The bug does not occur in Xnest or with the vesa driver. It does with “radeon” and “ati” (which seem to be the same thing). Even though it might be a driver issue, I'm reporting this on ubuntulooks because I have not seen any such thing before with my video card.

+++-========================-========================-================================================================
ii gtk2-engines-ubuntulooks 0.9.2-1 'ubuntulooks' theme for GTK+ 2.x
ii libcairo2 1.0.2-3ubuntu1 The Cairo 2D vector graphics library
ii libgtk2.0-0 2.8.13-1ubuntu4 The GTK+ graphical user interface library
ii libx11-6 1.0.0-0ubuntu3 X11 client-side library
ii libxrender1 0.9.0.2-0ubuntu2 X Rendering Extension client library
ii xserver-xorg 7.0.0-0ubuntu17 the X.Org X server
ii xserver-xorg-driver-ati 6.5.7.3-0ubuntu1 X.Org X server -- ATI display driver

[Sebastian Kapfer (caci)]

http://www.uni-erlangen.de/~snsekapf/junk/newtheme2.png
http://www.uni-erlangen.de/~snsekapf/junk/newtheme.png

[Rob Lesan (rob-teamlesan)]

I am experiencing a similar problem which only seems to show up in epiphany. I have the toolbar set to display icons only, no text. I am also using the Radeon driver. Ubuntulooks is version 9.5-1.

[Tarik Jabri (tjabri)]

I can confirm this. I too am experiencing this problem. I'm running an ati radeon card as well. I will post an attachment of a screenshot of Synaptic. Please notice the horizontal bar on the Sections pane has the glitch. Ubuntulooks is version 0.9.6-1.

[Tarik Jabri (tjabri)]

This screenshot displays synaptic with the glitch located in the lower left corner on the horizontal scroll bar. They are light colored horizontal streaks on the empty bar area.

The messed up buttons also happen with Firefox where the buttons don't have text on them. It's also shown up in other programs, like Evolution.

Ubuntulooks is version 0.9.6-1.

[Sebastian Kapfer (caci)]

Looks a little different, but who knows... does the bug disappear with the video driver “vesa”?

[Tarik Jabri (tjabri)]

Sebastian,

Yes the bug disappears with driver "vesa." I just verified that today. I can confirm your comments about the messed up buttons though, I just could never get a screenshot of it.

[Marius Gedminas (mgedmin)]

Confirming (although this might be redundant at this point). I see scrambled buttons in Rhythmbox and Sound Juicer with the new Human theme (gtk2-engines-ubuntulooks version 0.9.6-1). I also have a radeon card (mobility 7500).

[delaney (dfearon)]

using a radeon 7000 64meg card i too am experiencing this problem. I notice it in nautilus when i navigate forward a few folders and then use the back arrow to go back a few folders.
Also apparent in a few other apps. I get polka dot red hazes over the text.

[Billy Cantrell (bvc)]

just happened to me (nvidia) in a button on a popup dialog

I just started using gdm because it's the only way a new user can login. GDM was the cause of other probs recently. Run X from init 3 with startx and see if it continues. Hasn't happened to me when not using gdm.

[Sebastian Kapfer (caci)]

The glitches disappear when I disable RenderAccel (still "ati" driver on a Radeon M7). No luck reproducing it on my nvidia System or newer Radeons (M10).

[Sebastien Bacher (seb128)]

Does the RenderAccel change work for other people having that issue?

[delaney (dfearon)]

Im still having this issue with ubuntulooks engine.
Regardless of the RenderAccel option.

[Billy Cantrell (bvc)]

are you still using gdm?

[Sebastian Kapfer (caci)]

I can't see what GDM should have to do with this. Anyway, I just tried it, even booting from scratch and never invoking GDM, and the bug's still there. Probably you didn't load your full session. When gnome-settings-daemon isn't running, the default GTK theme is applied, and that doesn't seem to trigger any Render bugs.

I suppose we should relocate this to xorg-driver-ati or something.

[Hezekiah Carty (hez)]

I am seeing this as well, running the latest Dapper version. This is on an ATI 9200 card. I get both the scrollbar corruption and button highlight color problems.

[Rafael Rodrigues Rezende (rrezende)]

This also happens to me using dapper updated five days ago, only with Human gtk theme.

My xorg driver is "ati" (Radeon 7500) and I don't have the RenderAccel option in my xorg.conf.

So far I've seen this on Muine/Totem/Epiphany.

[Hezekiah Carty (hez)]

Bug #42317 looks like it is probably related to this - I have both problems on my system using the ati driver and ubuntulooks. The same problems also existed when the clearlooks-cairo driver was in use.

[Michaël Van Dorpe (michael-vandorpe)]

I've never seen the scrollbar issue, but I can confirm the garbled buttons. I don't have RenderAccel in my xorg.conf file either (that's the place where I could find that option, right?), and I'm using a Radeon Mobility 7500 32mb on an Inspiron 5100.

For those who have only seen the screenshots, most of the artifacts and colors appear of disappear when you hover over the buttons in Epiphany, rhythmbox, etc...

[fubarbundy (launchpad-mailtic)]

Another shot of scrollbars/buttons on my dup at https://launchpad.net/distros/ubuntu/+source/ubuntulooks/+bug/46646/

[Jan Klesnil (klesnil)]

Yesterday i have upgraded to Dapper Beta and I am experiencing similar problem with the buttons. My card is Radeon 9100. I am using `radeon' driver.

With RenderAccel turned off everything looks great (but the desktop renders slowly).

With XAA render acceleration there are some annoying artifacts.

But with the EXA acceleration the corruption is so heavy that GUI becomes almost unusable.

All other installed themes are working well (they probably dont you cairo) but are no match to Human with attractiveness :-( .

[Patrick Clément-Bonhomme (patrick.cb)]

I have the issue as presented above with a Radeon Mobility 9000 (M9) on a Toshiba Tecra S1, using the "radeon" driver.

Here are two additional screenshots :
http://www.gel.ulaval.ca/~clemen00/tmp/34435-blue-buttons.png
http://www.gel.ulaval.ca/~clemen00/tmp/34435-garbled-scrollbar.png

The artifacts disappear after hovering the mouse pointer above the offending widgets (in my case, buttons and scrollbars).

It's even worse when using EXA acceleration :
http://www.gel.ulaval.ca/~clemen00/tmp/34435-EXA.png

Note in the last screenshot that the "shiny" effects on the buttons and the progressbars are missing. Hovering the mouse over the widgets doesn't change anything.

Disabling RenderAccel fixes the issue completely, at the expense of slow rendering. It only occurs with the ubuntulooks theme coming with Dapper.

[Nathan Howell (neh)]

I have the corrupted buttons on an IBM T40 with a Radeon Mobility M7 LW and the ati driver. I've only noticed it on the buttons, and it clears up when the mouse moves over them.

[Jan Klesnil (klesnil)]

This seem to be Xorg radeon driver bug.

Also many users experience this bug and after final release this will damage ubuntu's fame overall, so changing to Major severity.

[Adam Cooper (adam-j-cooper)]

I'm getting this glitch, with the exact same symptoms as the others. Running a Mobility 7500 on a dell 5100.

[TheNose (thenose)]

See also Bug #38198

[Johannes Hessellund (osos)]

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

[Judderman (xjudder)]

Another instance of the ATI bug that is present.

[Michaël Van Dorpe (michael-vandorpe)]

How do we know the following problems are related?

1) buttons with dots on
2) lines in the toolbars
3) colored buttons

From the comments posted to this bug, I understand that the original problem reported in this bug is 1), while the people who see 2) and 3) do not see problem 1).

[Marius Gedminas (mgedmin)]

I see problems 1 and 2 (buttons with dots/lines, also in toolbars): http://mg.pov.lt/garbled-ubuntu-theme.png

I've never seen problem 3 (fully coloured buttons)

I *think* I've also seen the half-drawn horizontal scrollbar trough bug, but I cannot reproduce it at the moment.

[Ashley Hooper (ash-hooper)]

I have the same problem - only buttons seem to be affected and hovering the pointer over the button refreshes it OK. Running an ATI Radeon Mobility U1.

[marcog (marco-gallotta)]

I get the lines in toolbars and coloured buttons (2 and 3). Never noticed number 1 though.

Also, don't know if it's related or not, but sometimes in Firefox only the scollbars get completely disfigured. It started occuring from around the same time I started getting the coloured buttons. And when I start getting it, I always get it until I restart Firefox. Haven't noticed this in any other application.

More info here: http://ubuntuforums.org/showthread.php?t=181476

[e3mu (e3mu)]

I´m running the latest Dapper version with an ATI Mobility 7500.
I had problem 1 and 2.
Xorg driver is radeon and setting RenderAccel to 'off' fixed the problem.

[Adam Cooper (adam-j-cooper)]

Confirmed. Adding Option "RenderAccel" "off" fixed this issue on a Mobility 7500 with driver 'radeon'

[tyknkd (tyknkd)]

Confirmed. "RenderAccel" "off" fixed video artifact problem on buttons and text (with Ubuntu Human theme) on radeon mobility 7500 with driver 'radeon' (video artifact problem also existed with 'ati' driver).

[Shlomi Israely (sijproject)]

"RenderAccel" "off" did the trick for me as well, though it made a few games quite slow (Frozen-Bubble, Battle of Wesnoth).

[Sebastian Kapfer (caci)]

I don't want to dampen your enthusiasm, but I don't think that more confirmations are needed ;-)

[Pierpaolo Follia (pfollia)]

Using Option "XaaNoOffscreenPixmaps" in device section of xorg.conf file solved the problem for me. I'm using a ATI Radeon IGP345M with radeon driver.

[Onkar Shinde (onkarshinde)]

I had all the three problems mentioned. I am using ATI Radeon 7000 VE (with radeon driver)

"RenderAccel" "off" did the trick for me as well.

[Hezekiah Carty (hez)]

I'll second the fix put forward by madchicken - Option "XAANoOffscreenPixmaps" clears up the problem for me as well.

[Nickybatts (nickybatts)]

Yes! This problem has been driving me nuts on my IBM T40 laptop....

I see a "fix" has been posted, but how can we make that long term and easy to do for all users?

[Hezekiah Carty (hez)]

I don't think that the XAANoOffscreenPixmaps option should be used as a fix - it would be really nice if the Ubuntu devs would do what they can to fix the problem in the driver itself. The problem still exists in the Edgy Knot 1 livecd, and such a common series of cards shouldn't need tweaks such as this to get them working.

[Mark Shuttleworth (sabdfl)]

This is a deep upstream issue that requires knowledge of the ATI driver
and Cairo, and their interaction. I believe it has been reported
upstream (see the bugwatch on
https://bugs.freedesktop.org/show_bug.cgi?id=5518 on the report) but
there's not a lot of action there.

In Edgy, with newer drivers AND a newer Cairo, this problem is still
evident. Perhaps someone who is subscribed here know who to nudge
upstream to look at this?

[Daniel Holbach (dholbach)]

The same problem is evident with clearlooks, see http://bugzilla.gnome.org/show_bug.cgi?id=325818

[Jorj Ionesco (tcalin)]

I have the same problem with a Nvidia 6600 LE video card.

[Hezekiah Carty (hez)]

Jori - What exactly do you see with your nvidia card? Are you using the nv xorg driver, or the nvidia binary driver?

[Mark Shuttleworth (sabdfl)]

I've asked Dave Airlie, of ATI driver fame, to take a look into this. If
he doesn't have any luck, we need to escalate this to X.org and Cairo.
I'm sure both would want to see this squashed!

Mark

[Dave Airlie (airlied)]

can some of the reporters try disabling colortiling?

Option "Colortiling" "FALSE"

in the driver section of the xorg.conf and post here if it works...

It works for me here and would help me narrow it down if it some testers could check if it gets rid of it completely over time,
I'm away for a week and a bit but I'll see about fixing it when I get back....

[Hezekiah Carty (hez)]

Dave -

I just tried using the

Option "Colortiling" "false"

setting in my xorg.conf, and I still have the issue. So far, the only fix I've tried and had work is

Option "XAANoOffscreenPixmaps"

This is on a 32mb 9200mobility card running Dapper. I don't know if it's related, but I also see 3D rendering errors which go away if I disable most of the DRI acceleration options - I'm only mentioning this in case they are somehow related.

Thanks for looking at this problem!

[Jan Klesnil (klesnil)]

> can some of the reporters try disabling colortiling?
>
> Option "Colortiling" "FALSE"
>
> in the driver section of the xorg.conf and post here if it works...
>

Tried with Radeon7500 XAA driver and still have the issues.

Jan Klesnil

[Sebastian Brocks (beerockxs)]

Not working with this xorg.conf device section:

Section "Device"
 Identifier "ATI Technologies, Inc. Radeon R200 QL [Radeon 8500 LE]"
 Driver "radeon"
 BusID "PCI:1:0:0"
        Option "AGPMode" "4"
 Option "MonitorLayout" "NONE, CRT"
 Option "EnablePageflip" "true"
 Option "RenderAccel" "true"
 Option "Colortiling" "false"
EndSection

[Enrico Sardi (enricoss)]

Hi at all! The bug is still present in Ubuntu Knot2

Bye

Enrico

[Dave Airlie (airlied)]

I've put a .deb at

http://www.skynet.ie/~airlied/ubuntu/xserver-xorg-driver-ati_6.5.8.1-0ubuntu1_i386.deb

This is an update to the 6.5.7.3 driver in dapper.

I've just fallen back to sw rendering for the repeat case for the stable branch, the Xorg 7.1/7.2 driver will probably be fixed properly but this is the safest option for now.

[Mark Shuttleworth (sabdfl)]

Awesome - thanks Dave - could folks please test that and report back?

[Enrico Sardi (enricoss)]

Hi Mark and Dave!
I've tried it and it seems to work properly (the "coloured" buttons as http://utenti.lycos.it/aragorn995/UBUIMMA/uno.png have disappeared )!

Many thanks for the fix

Enrico

[Marius Gedminas (mgedmin)]

Looks like it fixed the problem for me too.

(I also checked if it maybe fixed bug 47775, but no, my laptop still crashes on a significant portion of mode switches.)

[Hezekiah Carty (hez)]

Dave - Does this just disable the offending options, or does it fix whatever the problem is which causes the display problems? If it just disables some of the acceleration options, what are the differences between this and using the original Dapper driver + XAANoOffscreenPixmaps? I only ask because I'd tried to do a straight backport of 6.5.8 from Sid a while ago and it greatly reduced stability on my system.

Either way though, thanks for making this available!

[Dave Airlie (airlied)]

No, it disables the hardware accelerated repeat case for render (you can't do this config options) .... it leaves the more-used blend case alone, I'm sure we might get this fixed for Xorg 7.2 if we get the chance, but the safest thing for dapper is just to fallback to software rendering for the repeat case.

[Ben Williams (benw)]

The new package fixes the bug for me as well.

[Hezekiah Carty (hez)]

The new package seems to fix both the botton color problems as well as the horizontal scroll bar drawing problems for me.

[Matt Zimmerman (mdz)]

Dave, would you attach the patch used in that package to this bug so that we can get it into Edgy straight away for further testing? Thanks very much for tracking it down.

[Dave Airlie (airlied)]

http://gitweb.freedesktop.org/?p=xorg/driver/xf86-video-ati.git;a=commitdiff_plain;h=84e574986f61c4f250d6ecb938bab20847618906;hp=487376cce72ef8f19b4e3dc742b53500bed7c480

is the patch from gitweb, I'd actually try and use the 6.5.8.1 head for any Xorg 7.0 systems, it contains some nice stability fixes for certain r300 cards, and some RN50 stability fixes.

I haven't formally release 6.5.8.1 but I can if you don't want to use the tagged one from git HEAD. I'd consider everything in the stable tree to be correct for dapper.

[joenix (woutersj)]

The updated drivers fixes the problem for me as well, if any more confirmation is needed.

[Johan Van Hellemont (johan-van-hellemont)]

Yeah,the update fixes the bug for me.

Thanks to all !!!

Johan

[Nickybatts (nickybatts)]

Has this bug fix been Incorporated into Dapper yet?

Cause if so, it did not work for me on my IBM T40...

On 9/18/06, Johan Van Hellemont <email address hidden> wrote:
>
> Yeah,the update fixes the bug for me.
>
> Thanks to all !!!
>
> Johan
>
> --
> Cairo and ATI RENDER extension cause scrambled buttons in UbuntuLooks
> https://launchpad.net/bugs/34435
>

--
+ Nick

[Hezekiah Carty (hez)]

I don't think that the fix has been backported to Dapper yet. It has been put in place for Edgy though. My success report for for the deb listed in Dave's comment above on my Dapper system.

[Nickybatts (nickybatts)]

My apologies... I will report back once it has been backported to Dapper.

I should have read more closely.

On 9/18/06, Hezekiah Carty <email address hidden> wrote:
>
> I don't think that the fix has been backported to Dapper yet. It has
> been put in place for Edgy though. My success report for for the deb
> listed in Dave's comment above on my Dapper system.
>
> --
> Cairo and ATI RENDER extension cause scrambled buttons in UbuntuLooks
> https://launchpad.net/bugs/34435
>

--
+ Nick

[Matt Zimmerman (mdz)]

On Tue, Sep 19, 2006 at 12:27:21AM -0000, Nickybatts wrote:
> Has this bug fix been Incorporated into Dapper yet?
>
> Cause if so, it did not work for me on my IBM T40...

Not at all; it only became available in Edgy a few days ago.

--
 - mdz

[Nickybatts (nickybatts)]

Is there a timeframe for a Dapper backport?

On 9/18/06, Matt Zimmerman <email address hidden> wrote:
>
> On Tue, Sep 19, 2006 at 12:27:21AM -0000, Nickybatts wrote:
> > Has this bug fix been Incorporated into Dapper yet?
> >
> > Cause if so, it did not work for me on my IBM T40...
>
> Not at all; it only became available in Edgy a few days ago.
>
> --
> - mdz
>
> --
> Cairo and ATI RENDER extension cause scrambled buttons in UbuntuLooks
> https://launchpad.net/bugs/34435
>

--
+ Nick

[Matt Zimmerman (mdz)]

On Tue, Sep 19, 2006 at 03:32:31PM -0000, Nickybatts wrote:
> Is there a timeframe for a Dapper backport?

Not presently, no. A backport to Dapper will not be considered until the
change has been extensively tested.

--
 - mdz

[Dave Airlie (airlied)]

On 9/20/06, Matt Zimmerman <email address hidden> wrote:
> On Tue, Sep 19, 2006 at 03:32:31PM -0000, Nickybatts wrote:
> > Is there a timeframe for a Dapper backport?
>
> Not presently, no. A backport to Dapper will not be considered until the
> change has been extensively tested.
>

To be honest I'd pull all the stable branch changes into dapper,
they've been extensively tested in other distros, also a bug to fix
some m6/m7 stability issues is currently due to be dropped in, I
suspect many other bug reports cover this problem....

anyway my unofficial package referenced earlier will fix it for dapper
users who want it..

Dave.

[Hezekiah Carty (hez)]

Dave - Is there any possibility that these fixes could also be posted as unofficial packages if they are not applied officially? The above package has cleared up the Cairo rendering issues, and I'm looking forward to stable Xinerama and fixes to the 3D rendering glitches which rear their heads :-) Thanks for your work on this, it's truly greatly appreciated!

[Matt Zimmerman (mdz)]

On Wed, Sep 20, 2006 at 02:28:10AM -0000, Hezekiah Carty wrote:
> Dave - Is there any possibility that these fixes could also be posted as
> unofficial packages if they are not applied officially?

They're welcome in the official dapper-backports repository, which provides
aggressive package updates for users who prefer faster updates to stability.
They'll be considered for a more mainstream update after more extensive
testing.

--
 - mdz

[Nickybatts (nickybatts)]

So have these updates been incorperated into Dapper backports?

I am anxious to get these fixes, but reluctant because I don't want to break my system. I do get a conflict error when I try to install the package listed above...

[dcberg (david-sipsolutions)]

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

[dcberg (david-sipsolutions)]

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?

[dcberg (david-sipsolutions)]

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.

[Timo Aaltonen (tjaalton)]

Rejecting old component

[Hezekiah Carty (hez)]

This is definitely still a problem with Dapper

[Timo Aaltonen (tjaalton)]

I bet it is, I just closed this for xserver-xorg-driver-ati which was renamed to -video-ati for edgy.

You could follow the SRU procedure to get the fix in dapper
https://wiki.ubuntu.com/StableReleaseUpdates

of if SRU is not the way to go, a backport might be better:
https://help.ubuntu.com/community/UbuntuBackports

That would mean getting 6.6.3 in dapper.

[Hezekiah Carty (hez)]

Timo - thanks for the links. I'm sorry about the tone in my last update post - I saw that the status for Dapper was still unconfirmed so I wanted to make sure it was properly labeled.

I'll see what I can do on both the backport and SRU fronts.

[Hezekiah Carty (hez)]

I have filed Bug #91189 to request a backport of Feisty's 6.6.3 driver to Dapper.

[Matt Zimmerman (mdz)]

On Sat, Mar 10, 2007 at 08:14:30AM -0000, Timo Aaltonen wrote:
> I bet it is, I just closed this for xserver-xorg-driver-ati which was
> renamed to -video-ati for edgy.
>
> You could follow the SRU procedure to get the fix in dapper
> https://wiki.ubuntu.com/StableReleaseUpdates

We generally don't do SRUs for cosmetic problems such as this one; it's not
worth the risk of changing such a critical component as a video driver.
Some guidelines for determining whether a bug should be considered for an
SRU are included in the wiki documentation.

> of if SRU is not the way to go, a backport might be better:
> https://help.ubuntu.com/community/UbuntuBackports

This would be a better option.

--
 - mdz

[Timo Aaltonen (tjaalton)]

Is this still an issue with 7.10beta or newer?

[Timo Aaltonen (tjaalton)]

Uh, should have read the log first. Marking as fixed.

[Otaylor-redhat (otaylor-redhat)]

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)

[Otaylor-redhat (otaylor-redhat)]

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.)

[Chris Wilson (ickle)]

Old bug in the ATI driver.

[Sebastien Bacher (seb128)]

upstream closed it saying that was an old ati driver bug

[Saivann Carignan (oxmosys)]

Dapper is not supported anymore since July 2009, therefore I mark Dapper status to invalid.