--- John Belmonte <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I'm the author of the toshiba_acpi Linux driver, which allows control
> of
> LCD brightness on some Toshiba laptops.
>
> After upgrading from XFree86 4.2.1 to 4.3.0.1 on my laptop (Toshiba
> Libretto L5 with Radeon M6), a bizarre problem has started: if I
> switch
> to the console and back to X, my driver is no longer able to adjust
> the
> LCD brightness until the next machine reboot. The driver operates by
>
> using the ACPI extensions for display adapters defined in the
> appendix
> of the ACPI spec. I'm not sure how, but I suspect that the radeon
> driver may be causing the problem.
>
It probably is the radeon driver. Unfortunately, xfree86 and it's
drivers have no knowledge of acpi at the moment. probably some acpi
related regs do not get properly saved by the server.
Alex
> I'm wondering if anyone has heard of a problem like this, or if some
> relevant bug fix has been made to the radeon driver since XFree86
> 4.3.
>
> -John Belmonte
>
>
> --
> http:// ift ile.org/
>
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