Experimental ubuntu-oneiric kernel which may fix "inverted brightness controls" and/or "backlight dim/off at startup" as reported in bugs LP: #779166, LP: #765438, LP: #773471, LP: #842459 and others.
This patch is only relevant for laptops with Intel graphics processors.
IMPORTANT: Some laptops may also need to boot with the kernel boot parameter "acpi_backlight
[ drm-intel-fixes ]
* drm/i915: Treat pre-gen4 backlight duty cycle value consistently
-- Kamal Mostafa <email address hidden> Thu, 15 Dec 2011 12:13:02 -0800
Adding this PPA to your system
You can update your system with unsupported packages from this untrusted PPA by adding ppa:kamalmostafa/inverted-backlight to your system's Software Sources. (Read about installing)
sudo add-apt-repository ppa:kamalmostafa/inverted-backlight sudo apt-get update
For questions and bugs with software in this PPA please contact Kamal Mostafa.
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