[ubuntu] Radeon HD 6450 installation

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http://ubuntuforums.org – Hello all, I'm to install a Radeon HD 6450 graphics card in an HP Proliant ML150 G5. I've been at this for upwards of 6 hours and have read through 1-2 dozen forum posts, articles, and so forth that Google has turned up, so please be patient if I seem a bit confused. :) Short back-story and current status: I've tried installing this video card with a few different drivers; currently I'm attempting to use the AMD proprietary driver. I've downloaded the latest release, which was posted today. After getting a handful of dependencies, I was able to successfully run the installer (amd-dr (Hardware)