[ubuntu] Finally was able install Ubuntu 12.04 (almost!)

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http://ubuntuforums.org – After several tries I was finally able to install 12.04 on my two computers - an AMD 64-bit machine with nVidia GE Force 6150 graphics chip and another AMD 64-bit machine with and ATI graphics chip. Neither will run with custom graphics drivers, but that's not a show-stopper for me. When this happens I run the nouveau driver (assuming that's the default). I usually set the gamma value at startup by having the following command inserted as a startup application: /usr/bin/xgamma -gamma 0.7 This has always worked, but now it doesn't! It appears to use the setting for the log-in screen, but (Hardware)