Laptop Brightness – Can’t Adjust Brightness on Acer Aspire Laptop

10.10aceraspirebrightness

I'm having difficulty in adjusting brightness on my Acer Aspire 4740:

  • Screen 14.1-inch glossy LED-backlit, 1366×768 res
  • CPU Intel Core i5-430M 2.26-GHz
  • RAM 1GB DDR3
  • HDD 320GB
  • Graphics Intel GMA HD

Im using Ubuntu 10.10 . I do not have this problem in Ubuntu 10.04 , but this problem occur in Ubuntu 10.10 . I can't decrease or increase my brightness even in Compiz.

Best Answer

I also have an ACER, but ASPIRE 4736Z. Same problem.

xbacklight, xgamma doesn't work.

Something that did work for me is redshift utility: Is there a software utility to adjust screen gamma/brightness/contrast?

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