I had this flicker problem when the bubble faded OUT, never in. As suggested, I checked my Jaunty RC Compiz fade settings and noticed that an exception for notify-osd was in the Open category for the Compiz Animations plugin, but not for the Close category, so I copied and pasted the exclusion and now bubbles fade out without flicker, but now they flicker when fading in!!
I removed the addition to the Close category and the fade out now flickers again, but the fade in is still flickering. Not sure what's happened...
I had this flicker problem when the bubble faded OUT, never in. As suggested, I checked my Jaunty RC Compiz fade settings and noticed that an exception for notify-osd was in the Open category for the Compiz Animations plugin, but not for the Close category, so I copied and pasted the exclusion and now bubbles fade out without flicker, but now they flicker when fading in!!
I removed the addition to the Close category and the fade out now flickers again, but the fade in is still flickering. Not sure what's happened...