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Acer Aspire 5742 Brightness Fix.

By: a guest on Nov 1st, 2012  |  syntax: None  |  size: 0.54 KB  |  views: 502  |  expires: Never
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  1. Acer Aspire 5742 Ubuntu Brightness Fix.
  3. Open a terminal window.
  4. Type "sudo gedit /etc/default/grub" without the quotation marks.
  5. Look in the text file for GRUB_CMDLINE_LINUX_DEFAULT=" (May contain extra text following)
  7. paste
  8. GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux
  9. over it. and hit save. close the window.
  10. In the terminal window, now type "sudo update-grub" without the quotation marks, restart your system, and now with the keyboard hotkeys you can control brightness.
  12. For any further help, email me at
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