Comment 52 for bug 727620

I also have an HP ENVY 14 with switchable graphics (ATI HD5650/Intel Integrated). I just did a clean install of Ubuntu 11.04 and installed all the recommended updates from the update manager. I get a black screen when I boot unless I put radeon.modeset=0 in the boot command line.

I've attached a copy of /var/log/kern.log created when using the default boot parameters.