[ltp] Low LCD brightness on T61

[Jason Brooks]

try cold booting in safe mode or in windows to see if the problem is
still there. It could be a bug with acpi or power management drivers.

On Wed, Jul 13, 2011 at 10:08 AM, Marius Gedminas <marius@gedmin.as> wrote:
> On Wed, Jul 13, 2011 at 03:31:46PM +0300, Micha Feigin wrote:
>> Its a bit off topic here I believe as it's not Linux related but I was
>> hoping that people here could give some advice.
>>
>> The max screen brightness on my T61 has really decreased lately to the
>> point where I can hardly work outside even in the shade. The laptop is 3
>> years old, so it's probably expected, but the result is a bit extreme.
>
> I've an almost-4-year-old T61. =C2=A0I haven't noticed screen brightness
> decreases, but then I never use it outside. =C2=A0IIRC it wasn't very usa=
ble
> in sunlight even it was brand new.
>
> There used to be a bug where the dynamic range of screen brightness you
> could access from Linux was cut in half if you booted while on battery
> power, and the BIOS setting for display brightness was set to power
> savings.
>
> You may want to try adjusting BIOS settings and/or rebooting with AC
> power plugged in before ordering new parts.
>
> Marius Gedminas
> --
> Not to be outdone by its closed source competition, Linux has sixteen typ=
es of
> mutex, varying the whole gamut of mutexity from lightweight to ultra-, hy=
per-
> lightweight.
> =C2=A0 =C2=A0 =C2=A0 =C2=A0-- Verity Stob
>



--=20
JaY