Quoth zxcdew...@gmail.com:
> Hi
>
> Is there anyway to adjust my laptop's (T440P) screen brightness?
>
> Thanks!
not nicely integrated. Depending on your card, something like
this may work:
#!/bin/rc
# SBLC_PWM_CTL2: bytes 15:0, range 0 (off) to v>>16 (full)
if(! ~ $#* 1){
echo usage: $0 factor
exit 'usage'
}
echo -n type igfx > /dev/vgactl
v=`{seg -Lr igfxmmio 0x400000 0xc8254}
if(~ $#v 0)
exit 'no such named segment'
v=`{echo 'v='$v'; v & ~0xffff | ((v>>16) / '$1')' | pc -n}
if(! ~ $#v 1)
exit 'invalid factor'
sleep 0.1
seg -Lw igfxmmio 0x400000 0xc8254 $v
You'll have to figure out where the backlight PWM register is
on your model of video card if this doesn't just work out of
the box.
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