I installed another ubuntu based distrib, Ubuntu Studio 11.10 ( witch is XFCE based ) and ran the same issue.
But this time, after a lot of test, I get it fixed ; and it was after installing sources from Xorg edgers, and upgrade all xorg package via synaptic ( + restart ) , https://launchpad.net/~xorg-edgers/+archive/ppa . This new upgrades made my system use nouveau/mesa/gallium instead of Nvidia proprietary ( I see it running 'glxinfo' inside a terminal ) ...so, maybe nvidia proprietary driver being guilty.
So, I presume I 'sort of' got it fixed ( at least I hope ) and did a 20min painting without any ghost lines problems. I still have to inspect if 3D performances are enough good to run Blender , games , etc... , I don't know a lot this new driver "nouveau/mesa/gallium" . My experience always lead me to had the reflex to install "additional proprietary driver" at first start after a fresh install...
[ info : Test run for Gimp 2.6 - Gimp-painter, from Mizuno ppa + Xorg Edger upgrade + Ubuntu Studio 11.10 ( witch is XFCE based ) ]
I installed another ubuntu based distrib, Ubuntu Studio 11.10 ( witch is XFCE based ) and ran the same issue.
But this time, after a lot of test, I get it fixed ; and it was after installing sources from Xorg edgers, and upgrade all xorg package via synaptic ( + restart ) , https:/ /launchpad. net/~xorg- edgers/ +archive/ ppa . This new upgrades made my system use nouveau/ mesa/gallium instead of Nvidia proprietary ( I see it running 'glxinfo' inside a terminal ) ...so, maybe nvidia proprietary driver being guilty.
So, I presume I 'sort of' got it fixed ( at least I hope ) and did a 20min painting without any ghost lines problems. I still have to inspect if 3D performances are enough good to run Blender , games , etc... , I don't know a lot this new driver "nouveau/ mesa/gallium" . My experience always lead me to had the reflex to install "additional proprietary driver" at first start after a fresh install...
[ info : Test run for Gimp 2.6 - Gimp-painter, from Mizuno ppa + Xorg Edger upgrade + Ubuntu Studio 11.10 ( witch is XFCE based ) ]