Comment 0 for bug 284346

Binary package hint: xserver-xorg-video-ati

Currently the xserver-xorg-video-ati 1:6.9.0+git20081003.f9826a56-0ubuntu2 is shipping two patches to workaround dithering problem on some cards. I suggest to update to current git version which has proper fixes for this problems:
* RV530 on MacBook Pro
 + bug #264535
 + https://bugs.freedesktop.org/show_bug.cgi?id=17897
 + the current upstream fix has the following advantages over current ubuntu 103_rv530_enable_diethering.patch:
  - it fixes completely the problem (the ubuntu patch still leaves some banding);
  - it is targetting only RV530 on MacBook Pro (where there is the dithering problem), not all RV530;
  - it makes the 103_rv530_enable_diethering.patch useless making the ubuntu packages more inline with supported upstream;
 + I tested current git version and noticed no regression so far
* RV6xx/RV7xx cards:
 + https://bugs.freedesktop.org/show_bug.cgi?id=17094
 + current git version should also fix this problem in a similar way, though I don't own this hardware to test; it should have the following advantages:
  - it should fix completely the problem (the ubuntu patch appears to leave some banding);
  - it has a more general approach targetting not only specified cards;
  - it makes the 101_rv635_enable_dithering.patch useless making the ubuntu packages more inline with supported upstream;

Current git version (2008-10-15 commit 435cf7da68186f2601c4b888296117d4f652c625) has 9 commits more than current ubuntu version:
 - 8 commits related to the dithering problems;
 - 1 cleanup commit renaming some function;

I suggest to update the ubuntu version to current git to properly fix the dithering problems.

Test packages provided by Tormod Volden can be found at:
https://edge.launchpad.net/~tormodvolden/+archive