the ACPI video backlight I/F on your laptop is broken. could you please boot with acpi_backlight=vendor and see if it works at before? BTW: please attach the output of "grep . /proc/acpi/video/*/*/*" in 1. 2.6.28 kenrel & boot with "acpi_backlight=vendor" 2. an earlier working kernel, say 2.6.26. thanks, rui On Wed, 2008-12-31 at 00:02 +0800, Kel Modderman wrote: > On Tuesday 30 December 2008 11:37:47 Zhang Rui wrote: > > On Mon, 2008-12-29 at 16:39 +0800, Kel Modderman wrote: > > > On Monday 29 December 2008 11:07:32 Zhang Rui wrote: > > > > hi, > > > > > > > > This is a duplicate of bug > > > > http://bugzilla.kernel.org/show_bug.cgi?id=12302 > > > > please try the patch at > > > > http://bugzilla.kernel.org/show_bug.cgi?id=12037#c5 > > > > > > When patch is applied backlight control returned to normality. > > > > > please attach the output of "grep . /proc/acpi/video/*/*/*" both before > > and after applying this patch. > > Attached. > > Thanks, Kel -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
