This bug was affecting me as well. Bruno Haible's workaround (switch Compositing to XRender) seems to have worked for me. I was seeing the effect in simple "ls -a" (which doesn't scroll) in xterm, as well as in emacs running in an xterm.
I'm running Kubuntu 12.04, fully uptodate. 3.2.0-37-generic AMD FX-8150 using onboard graphics (Radeon), but not the proprietary AMD driver (it has a glitch with respect to xrandr) Don't really know what other info might be needed. My thanks to Bruno, however! -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/861268 Title: text corruption in terminals (xterm, urxvt) and emacs To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/861268/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp