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I upgraded to 14.04 just today and since I'm now using kernel v3.13 and according to This link, I should now be having better support for AMD grapahics.

Is it possible to fix the screen-brightness adjustment issue after this upgrade ? I simply can't change the brightness of my screen. There were numerous solution attempts for this problem on 13.10 but I experienced system-freezes afterwards. Is there a stable solution for this now that I've upgraded to Trusty ?

My machine: Dell Inspiron SE 7520

My GPU (Discrete\Independent graphics card): AMD Radeon HD 7730m

My APU (Graphics card integrated into the processor): Intel® Ivybridge Mobile

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