old intel graphics works better (without uxa acceleration tweak)

Nio Wiklund nio.wiklund at gmail.com
Thu Apr 3 07:25:33 UTC 2014


2014-04-03 08:31, Nio Wiklund skrev:
> Hi everybody,
> 
> Old intel graphics works again (without the uxa acceleration tweak), at
> least it works better from pictures.
> 
> Somewhere along the development path of Trusty, it started to render
> pictures well again, for example the background picture of Lubuntu.
> 
> Those of us who had problems in Saucy and also in the beginning of
> Trusty have fixed it with the uxa acceleration tweak (introduced to us
> by John)
> 
> -----
> Edit (or create) /etc/X11/xorg.conf as follows: (ugh, can't format,
> should be a tab before each line except the first and the last).
> 
> Section "Device"
> 	Identifier "Intel Graphics"
> 	Driver "intel"
> 	Option "AccelMethod" "uxa"
> EndSection
> -----
> 
> This is not necessary in the current daily build in our IBM Thinkcentre
> with the following Intel graphics:
> 
> VGA compatible controller: Intel Corporation 82865G Integrated Graphics
> Controller (rev 02)
> 
> -o-
> 
> But there is another problem too. Video clips are rendered with too
> bright colours. This problem appeared at the same time as the jagged
> contours in pictures. And this problem remains in our Thinkcentre.
> 
> -o-
> 
> I suggest that you try too, if you are/were affected by this regression.
> 
> Please check the rendering of pictures (jagged contours) and also
> playing video clips (which might have too bright colours) and let us
> know how it works for you!
> 
> Best regards
> Nio
> 
Hi again,

I just want to add that the uxa acceleration still works in today's
daily build of Trusty and helps render the video colours correctly.

Nio



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