Possible problem with qt 4.6.0 and compositing.

[Eli Wapniarski]

Hi All

Just a heads up cause I haven't finished my diagnostics. But I suspect that there is a
problem with the qt 4.6.9 and kwin compositing....

OBSERVATIONS
------------------
Been playing a full screen game under wine quiet frequently. Now... thankfully I am able
to play the game across both my screens (2560x1024) without X crashing. Dunno if its
because of improvements with newer versions of NVidia driver, KDE 4.3.2 or because of qt
4.6.0. In any case. The problem is that the game freezes after awhile. Checked to make
sure there wasn't some problem because of the screen resolution and reverted back to
1280x1024 the game still froze. Then I checked if the freeze was caused by an update to
the video driver so I reverted back to an older version of the driver which I know that
the game played without freezing.. But, unfortunately the game froze again. So I
completely switched off kde desktop effects (compositing) and no more freezes.

I now need to revert back to the older version of qt and see what happens. Until the qt
update I have had no freezing.

So.... just giving everyone a heads up and will report back here within a day or two.


Eli

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[Eli Wapniarski]

On Wednesday 21 October 2009 19:34:29 Eli Wapniarski wrote:

OK.... doesn't seem to be a problem with qt 4.6.0. As a matter of fact, the freeze of
the program seemed to happen faster with 4.5. So now I'm at a loss. To whom do I
report the problem? Do I report it to xorg, kde, wine, qt, nvidia or to all and cross
reference to everyone? Or can someone suggest a fulcrum that will start the appropriate
communication going to the right people?

In any case, I guess I will have to remember to turn compositing off when playing. 


Thanks for any suggestions that you may be able to provide

Eli


>  Hi All
>  
>  Just a heads up cause I haven't finished my diagnostics. But I suspect that there is
> a problem with the qt 4.6.9 and kwin compositing....
>  
>  OBSERVATIONS
>  ------------------
>  Been playing a full screen game under wine quiet frequently. Now... thankfully I am able
> to play the game across both my screens (2560x1024) without X crashing. Dunno if its
> because of improvements with newer versions of NVidia driver, KDE 4.3.2 or because of qt
> 4.6.0. In any case. The problem is that the game freezes after awhile. Checked to make
> sure there wasn't some problem because of the screen resolution and reverted back to
> 1280x1024 the game still froze. Then I checked if the freeze was caused by an update to
> the video driver so I reverted back to an older version of the driver which I know that
> the game played without freezing.. But, unfortunately the game froze again. So I
> completely switched off kde desktop effects (compositing) and no more freezes.
>  
>  I now need to revert back to the older version of qt and see what happens. Until the qt
> update I have had no freezing.
>  
>  So.... just giving everyone a heads up and will report back here within a day or two.
>  
>  
>  Eli
>  
>   
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[Eli Wapniarski]

On Wednesday 21 October 2009 23:24:38 Eli Wapniarski wrote:


OK,,, I guess I will start this with kde. There is a bug report against kwin over at kde:

https://bugs.kde.org/show_bug.cgi?id=211407

Eli


>  On Wednesday 21 October 2009 19:34:29 Eli Wapniarski wrote:
>  
>  OK.... doesn't seem to be a problem with qt 4.6.0. As a matter of fact, the freeze of
> the program seemed to happen faster with 4.5. So now I'm at a loss. To whom do I
> report the problem? Do I report it to xorg, kde, wine, qt, nvidia or to all and cross
> reference to everyone? Or can someone suggest a fulcrum that will start the appropriate
> communication going to the right people?
>  
>  In any case, I guess I will have to remember to turn compositing off when playing. 
>  
>  
>  Thanks for any suggestions that you may be able to provide
>  
>  Eli
>  
>  
>  > Hi All
>  > 
>  > Just a heads up cause I haven't finished my diagnostics. But I suspect that
> there is a problem with the qt 4.6.9 and kwin compositing....
>  > 
>  > OBSERVATIONS
>  > ------------------
>  > Been playing a full screen game under wine quiet frequently. Now... thankfully I am
> able to play the game across both my screens (2560x1024) without X crashing. Dunno if its
> because of improvements with newer versions of NVidia driver, KDE 4.3.2 or because of qt
> 4.6.0. In any case. The problem is that the game freezes after awhile. Checked to make
> sure there wasn't some problem because of the screen resolution and reverted back to
> 1280x1024 the game still froze. Then I checked if the freeze was caused by an update to
> the video driver so I reverted back to an older version of the driver which I know that
> the game played without freezing.. But, unfortunately the game froze again. So I
> completely switched off kde desktop effects (compositing) and no more freezes.
>  > 
>  > I now need to revert back to the older version of qt and see what happens. Until the
> qt update I have had no freezing.
>  > 
>  > So.... just giving everyone a heads up and will report back here within a day or
> two.
>  > 
>  > 
>  > Eli
>  > 
>  > 
>  
>   
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