Ubuntu
xserver-xorg-video-intel package

  1. Bug #397617
  2. Comment #57

Comment 57 for bug 397617

Revision history for this message
In , Zhang Rui (rui-zhang) wrote :

>
> Here is the link from archlinux forums, a user named stefek own Dell Studio
> with ATI graphics card and the backlight problem was solved by
> acpi_backlight=vendor kernel paramater.
>
> http://bbs.archlinux.org/viewtopic.php?pid=593486#p593486
>
> Here is someone with problem on Fedora 11 with Macbook Pro 4.1
>
> https://bugzilla.redhat.com/show_bug.cgi?id=473588
>
not sure if they are the same unless I have seen the acpidump output.
But if "acpi_backlight=vendor" works for them, then this is a Linux/acpi bug that should be reported in kernel bugzilla. :)