I have a Dell Inspiron 8500 notebook with Broadcom wired and wireless network adapters and an NVIDA GeForce video adapter. I just upgraded to 11.04 and am no longer able to activate the proprietary NVIDIA driver that I had been using. The upgrade process said it needed to be deactivated, but that it could be reactivated. Without the proprietary driver (using the Nouveau driver), the icons and cursors are garbled. The System>Administration>Additional Drivers tool says " No proprietary drivers are in use on this system." and it does not show any proprietary drivers as available any more. It only shows "Experimental 3D support for NVIDIA cards" I get an error if I try to activate this option. I used to see the NVIDIA proprietary driver and the b43legacy drivers as options. The b43legacy driver would not activate before, but I do not have a critical need for the wireless support. The proprietary NVIDIA driver (96.43.19?) was working fine before.
Also, whenever a package is managed, I get an error when "Setting up firmware-b43legacy-installer (4.178.10,4-5) ... Not supported card here (PCI id 14e4:4401 14e4:4320). The BCM4401 is the wired Ethernet controller (b44 Kernel module) and was working before. The 4320 is listed as a device supported by the b43legacy driver (Chip BCM4306/2). In following some of the suggestions for fixing this or a similar sounding problem I have managed to also break the 4401 Ethernet controller. Is there any hope of getting this working again or a way to get back to the previous installation? I realize that the proprietary drivers are not supported, but the NVIDIA one was working before, so I was hoping that it wouldn't hurt to ask a question.
Thanks.