Bug#655377: Kernel panic when turning off screen backlight using laptop Fn key since 3.1 (has patch)
Hello, there's patch available to fix the kernel panic when 'turning
off screen backlight'
which me and other people experienced (on various distros including
debian testing on lenovo).
Link to issue/patch: https://lkml.org/lkml/2011/10/19/485 includes
link to the PATCH in the bottom.
Debian Testing installed 10 january 2012 on lenovo g series laptop