[ubuntu] Resolution

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http://ubuntuforums.org – Hello, I'm new to Ubuntu (using Ubuntu 12.10) and when I installed the new drivers I got higher resolution than what I could have before but it's still not high enough. Got 1600x900 as max but my monitor can handle 1920x1080. I had a problem before when I used another OS with the edid but I could simply remove the EDID using catalyst. Please help me get 1920x1080 again! (Hardware)