My display brightness adjustment is off by a factor of 10, i.e. it's brightest at 10% instead of at 100%, and the difference between 0% and 1% is a little too high.
Any way to fix either of these problems? (VAIO CW laptop)
From the information you've given us, it appears that you need to change your GRUB settings.
To do that, open up a terminal and run the following commands:
I have the same laptop and have the same problem. What i have found is that if you go in to gnome configuration editor (gconf-editor) there you navigate to apps, gnome-power-manager, backlight. If i change the key brightness_ac from values 0-12 it affects my screen brightness. However values over 12 up to 100 doesn't make any difference to the brightness compared to 12. When i use the fn+ f5, f6 keys it seams to adjust the brightness in values from 0-100 with increments of 5. I hope this make sense for someone with more knowledge in ubuntu then me