Virtualbox (4.0.4 r70112) works fine for me (Acer Aspire 5810T)
2.6.35-27-generic #47+kamal~mjgbacklight1-Ubuntu SMP Tue Feb 15 18:33:12 UTC
2011 x86_64 GNU/Linux

2011/2/19 JeanAustinR <zeroseven0...@gmail.com>

> Has anyone tried running Virtualbox with this temporary package? Since
> applying the PPA, I cannot run a virtual machine properly, only if I
> reboot and select another kernel version.
>
> --
> You received this bug notification because you are a direct subscriber
> of the bug.
> https://bugs.launchpad.net/bugs/568611
>
> Title:
>  Screen brightness control fails on Dell Studio 1558
>
> Status in NULL Project:
>  Invalid
> Status in “alsa-driver” package in Ubuntu:
>  Invalid
> Status in “linux” package in Ubuntu:
>  In Progress
>
> Bug description:
>  Attempts (on a current Lucid beta) to control the screen brightness on
>  my Dell Studio 1558 fail with the following errors reported in dmesg:
>
>   [ 1162.236365] ACPI: Failed to switch the brightness
>   [ 1162.379144] ACPI: Failed to switch the brightness
>   [ 1162.538226] ACPI: Failed to switch the brightness
>   [ 1162.667358] ACPI: Failed to switch the brightness
>   [ 1162.784171] ACPI: Failed to switch the brightness
>
>  This is true both for the keyboard's brightness controls (Fn-F4,
>  Fn-F5) and for a gnome-brightness-applet on the panel.
>
>  Output of acpidump, dmesg and lspci is attached.
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/null/+bug/568611/+subscribe
>

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https://bugs.launchpad.net/bugs/568611

Title:
  Screen brightness control fails on Dell Studio 1558

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