Screen dim does not work on Natty using nvidia-current drivers

[Rodrigo Delgado]

**WORKAROUND at #2 **

I am trying to dim the screen of my Vostro 3400 laptop equipped with a nVidia GeForce 310M video card using Ubuntu Natty 11.04 nvidia-current drivers and it does not work. This feature was OK using Ubuntu 10.10 and the same driver package. The system shows the dim bar when I press the key combination to do so, but the screen bright does not change. The nvidia kernel driver module is already loaded and seems to be working along with the X.org distribution shipped on Natty.

[Fabio Marconi (fabiomarconi)]

Hello
Are you encountering again this problem with the latest release Oneiric Ocelot ?
Thanks
Fabio
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad

[Rodrigo Delgado (rodrigo-delgado)]

Hello Fabio

Yes, the problem remains in 11.10. And on that release, I have solved
the issue by using acpi_osi=Linux as a kernel boot flag.

Best regards
Rodrigo

On Sat, Nov 5, 2011 at 10:24 AM, Fabio Marconi <email address hidden> wrote:
> Hello
> Are you encountering again this problem with the latest release Oneiric Ocelot ?
> Thanks
> Fabio
> ---
> Ubuntu Bug Squad volunteer triager
> http://wiki.ubuntu.com/BugSquad
>
> ** Changed in: ubuntu
>       Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/773761
>
> Title:
>  Screen dim does not work on Natty using nvidia-current drivers
>
> Status in Ubuntu:
>  Incomplete
>
> Bug description:
>  I am trying to dim the screen of my Vostro 3400 laptop equipped with a
>  nVidia GeForce 310M video card using Ubuntu Natty 11.04 nvidia-current
>  drivers and it does not work. This feature was OK using Ubuntu 10.10
>  and the same driver package. The system shows the dim bar when I press
>  the key combination to do so, but the screen bright does not change.
>  The nvidia kernel driver module is already loaded and seems to be
>  working along with the X.org distribution shipped on Natty.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+bug/773761/+subscriptions
>