I also had the same problem in my Powerbook G4 12in. Today, I found a way to make it work.
The problem is the offb driver being built in to the kernel. It has to be disabled. Here's what I did: 1. Edited /etc/yaboot.conf and modified the per-image "append=" line to 'append="video=offb:off video=nvidiafb:flatpanel=1 splash"' 2. Ran 'sudo ybin -v' 3. Edited /etc/modprobe.d/blacklist-framebuffer and changed the line "blacklist nvidiafb" to "#blacklist nvidiafb" (i.e., commented if out) 4. Ran 'sudo dpkg-reconfigure linux-image-`uname -r`' 5. Rebooted I think that was all. I Also tried using rivafb instead of nvidiafb, and they both seem to work. This also solved the bug #35992 "brightness controls not working for 12" powerbook" in my machine. My Powerbook is a 12-inch model with 800 MHz CPU and a Nvidia display adapter. -- USplash looks corrupted on PPC https://bugs.launchpad.net/bugs/21478 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
