[ubuntu] Lenovo G550 Brightness Keys, Webcam

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http://ubuntuforums.org – Has anyone successfully been able to use the brightness (screen dim up/dn) keys or the webcam on their Lenovo G550 laptop in Ubuntu 9.10? For ref: I was able to get wifi working which is a BCM4312 by plugging in to a hardwired connection + allowing Ubuntu to do updates, rebooting and selecting "Broadcom STA Driver" under Hardware Drivers from Sys prefs. (Hardware)