I'm sorry, I'll open a new bug in a few days.
Just to chime in with a bit more information and a reminder in case we
are losing focus, the original bug description concerned the NVidia
Geforce 8 series cards, I have a Vaio VGN-SZ71WN which has a 8400 GS
card on it, I tried the nvclock mentioned above (nvclock 8 b3) but it
tells me:
"Smartdimmer is only supported on certain laptops using a Geforce
6200/7x00Go. If you want support on your laptop contact the author"
Which means the original problem is still not solved
--
unable to adjust screen brightness on recent Sony Vaio notebooks
https://bugs.launchpad.net/bugs/173652
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