Nouveau - Apr 2009 - [Bug 21257] New: Qt applications strange behavior

http://bugs.freedesktop.org/show_bug.cgi?id=21257

           Summary: Qt applications strange behavior
           Product: xorg
           Version: 7.4
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: luizluca at gmail.com
         QAContact: xorg-team at lists.x.org


Hello,

I'm having a problem with Qt applications and nouveau. I filled a bug in kde
(4.2.2) for some drawing problems. However, as it occurs also with virtualbox,
I think this might be related to nouveau with Qt.

I use updated nouveau git + drm git without 3d. Alfter some time, plasma and
virtualbox, independently, stops to draw some parts randomly. For example, when
I pass the mouse over icons, they disapear and reapear (maybe reapers using
cache image).

If I kill plasma or vbox and open it again, it works for some time before the
same problem reocurs. This happens also with other kde aplications like
kterminal.

I also tested with nv without being able to reproduce the problem.

For plasma I got a lot of this error:

QPainter::begin: Paint device returned engine == 0, type: 3                     
QPainter::setCompositionMode: Painter not active    
QPainter::end: Painter not active, aborted                                      

I also reported this in:
https://bugs.kde.org/show_bug.cgi?id=189059

PS: I'm not attaching the kernel log as it has only the normal startup info.
Do I need to attach "drm+debug" ?


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--- Comment #1 from Younes Manton <younes.m at gmail.com>  2009-04-17
17:20:59 PST ---
Can you attach your Xorg.0.log?


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--- Comment #2 from Luiz Angelo Daros de Luca <luizluca at gmail.com> 
2009-04-20 11:03:01 PST ---
Created an attachment (id=24977)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=24977)
xorg log

(Sorry, I forget to press "Attach" on bug openning)


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--- Comment #3 from Luiz Angelo Daros de Luca <luizluca at gmail.com> 
2009-04-25 14:14:52 PST ---

http://bugs.freedesktop.org/show_bug.cgi?id=21257





--- Comment #4 from Younes Manton <younes.m at gmail.com>  2009-04-25
17:05:46 PST ---
Probably means ARGB visuals.

You said it started happening a few weeks ago, what did you update to cause it?
Are you compiling the driver yourself and can you bisect it? I can't run
Plasma
or Konsole at the moment so I can't really look at it.


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--- Comment #5 from Luiz Angelo Daros de Luca <luizluca at gmail.com> 
2009-04-26 17:41:21 PST ---
For some time, I was compiling but installing 64 bits libs in /usr/lib/
(nouveau default dir even on x86_64) and not /usr/lib64/. Sometime in the past,
I fixed this forcing this in configure script. This brought another bug
(already fixed) and so, I can't say which came first: my compilation fix or
this bug in git.

If this bug could be rapidly reproduced, I could try something like "git
bisect"

Is there any other way I can help?


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--- Comment #6 from Luiz Angelo Daros de Luca <luizluca at gmail.com> 
2009-04-29 10:59:31 PST ---
Some more news:

I cannot reproduce this on a single screen setup. I removed my second monitor
and the problem seems to vanish. When I readded it, it came back.

I have an unsual setup with a 21' lcd and a 15' lcd rotated to right and
left
of the first screen. The main reason to use nouveau is the randr1.2 support.


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--- Comment #7 from Younes Manton <younes.m at gmail.com>  2009-04-29
13:07:56 PST ---
Can you try without rotation?


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--- Comment #8 from Luiz Angelo Daros de Luca <luizluca at gmail.com> 
2009-05-14 15:06:45 PST ---
It happens also without rotation and with simple apps like Yast


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--- Comment #9 from Luiz Angelo Daros de Luca <luizluca at gmail.com> 
2009-05-14 15:07:27 PST ---
Created an attachment (id=25873)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=25873)
Yast on startip (normal)


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--- Comment #10 from Luiz Angelo Daros de Luca <luizluca at gmail.com> 
2009-05-14 15:08:18 PST ---
Created an attachment (id=25874)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=25874)
Yast after some hours

Here, the icons are gone.


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Luiz Angelo Daros de Luca <luizluca at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #25873|Yast on startip (normal)    |Yast on startup (normal)
        description|                            |




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Martin Peres <martin.peres at ensi-bourges.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #11 from Martin Peres <martin.peres at ensi-bourges.fr> ---
Nouveau has no problems with KDE on any of my cards. Let's close this bug.

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