I have uploaded a revised Natty kernel to the PPA, which should fix the
regression some users have reported since the last update (this revision
re-instates the enabling of acpi_backlight=vendor parameter by default).
The new 'kamal2' Natty kernel (linux -
2.6.38-11.48+kamal2~mjgbacklight5) is queued to build and should become
available within the next several hours. Thanks Joshua, Joe, and
Lawrence for reporting and helping to diagnose the problem.
https://launchpad.net/~kamalmostafa/+archive/linux-kamal-
mjgbacklight
(Its unclear whether Oneiric also needs "acpi_backlight=vendor"; I'll
apply the same fix there if any Oneiric user of the backlight PPA
advises me that booting with that kernel parameter fixes their system).
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https://bugs.launchpad.net/bugs/568611
Title:
Screen brightness control fails on Dell Studio 1558
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