[ltp] T21 backlight problem

[Alex Deucher]

On 3/29/06, Richard Bellin <richbellin@yahoo.com> wrote:
> Greetings All,
>
>   I recently installed SUSE 10 on a Thinkpad T21
> laptop
> with the Savage Video hardware. I've managed to get
> most of the Thinkpad features (including the
> Thinklight) to work. However, I cannot seem to get the
> LCD backlight to power off when the screen blanks. The
> only way I have been able to accomplish this task is
> to set the screen power off timer in BIOS and add
> ACPI=3DOFF to the kernel parameters. Although this
> works, turning off ACPI disables other features (such
> as the ability to hot-swap the ultra-bay).
>
>   I want to leave this machine running 24-7, but I
> don't wish to do frequent replacement of the LCD
> backlight. The prior OS (Win***s) had no problem with
> turning off the backlight.
>
>   I am still relatively new to Linux, so I would
> greatly appreciate any assistance or pointers to a
> solution to this problem.
>

what version of Xorg are you running?  The savage driver in 6.9/7.0
should turn off the LCD and the backlight properly.  If not, let me
know.

Alex

>   Thanx in advance.
>
>    Rich
>