On Thu, May 02, 2013 at 11:56:07AM +0200, Marwan Tanager wrote:Forgot to mention that you must run update-grub after changing
> On Thu, May 02, 2013 at 05:23:42AM -0400, giri wrote:
> > Package: general
> > Severity: normal
> >
> > Dear Maintainer,
> > *** Please consider answering these questions, where appropriate ***
> >
> > * What led up to the situation?
> > while adjusting screen brightness
> >
> > * What exactly did you do (or not do) that was effective (or
> > ineffective)?
> > used laptop dedicated buttons to adjust screen brightness
> >
> > * What was the outcome of this action?
> > system freeze
> >
> > * What outcome did you expect instead?
> > screen brightness to be adjusted without problems
>
> I had the same problem a while ago on a Dell Inspiron N5010, and I was able to
> work around it by using the following configuration in /etc/default/grub
>
> GRUB_CMDLINE_LINUX="acpi_backlight=vendor"
/etc/default/grub in order to generate /boot/grub/grub.cfg using the new
configurations. Otherwise, the line above would have no effect, because grub
would still read the old grub.cfg after reboot.
--
Marwan