Brightness buttons not working on acer aspire 5750
I have a acer aspire 5750 and im running Ubuntu 13.04 and my brightness buttons are not working all of a sudden. they were working about 2 weeks ago but one day i tried and they were broken. i did nothing to them as they work in windows just not Ubuntu. can anyone help? i use these buttons a lot and i need them to work, as there very useful becasue now i have to go the settings and change it from there and it begins to get really annoying.
I have a acer aspire 5750 and im running Ubuntu 13.04 and my brightness buttons are not working all of a sudden. they were working about 2 weeks ago but one day i tried and they were broken. i did nothing to them as they work in windows just not Ubuntu. can anyone help? i use these buttons a lot and i need them to work, as there very useful becasue now i have to go the settings and change it from there and it begins to get really annoying.
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