Yes, you can install the natty kernel in lucid as well. Sometimes when you install newer kernels in older releases you will have some dependencies on firmware packages that you might need to upgrade as well, but for these tests that should not be a problem.
By the way, for laptops with Radeon cards I would recommend using a newer kernel. since the power management is much better since 2.6.35 (I use power_profile "low"). If you install natty, and you are afraid of touching the lucid grub setup, choose to install the natty grub to the natty partition, and not to the MBR. Then in your lucid grub configuration, add an entry to "chain-load" the natty grub: menuentry "Natty" { set root=(hd0,6) chainloader +1 } where, of course, you substitute hd0,6 with the natty partition where natty grub was installed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/763909 Title: 11.04 Wont Boot With Mobility Radeon HD 3400 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs