I am affected too, but only sometimes when I switch screen mode (e.g. with Ctrl+Alt+Fx) or suspend/resume my laptop.
Unfortunately "radeon.new_pll=0" does not fix it for me, although it seems to lower the probability and/or intensity of flickering. I use Lucid LTS with kernel 2.6.35-22 on a HP nx8220 with an ATI X600 (RV380) and I added the kernel options "nomodeset radeon.modeset=0" (both, to be sure its disabled everywhere). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/541501 Title: [RV515] [LENOVO T60] external screen display shows "shivering", horizontal refresh offset -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
