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7020100
(Get the code!)
Hi Cameron,
I'm sorry for carrying bad news but after adding the new brightness.conf, removing the backlight directory and rebooting twice I was left with no display (completely black screen). After the first reboot I still had it, but after the second reboot it was completely gone.
So after this I decided to take a shot at the "Beta 3" ISO's with the 3.16 kernel. Unfortunately it didn't boot. Got the following errors:
[2.652959] radeon 0000:01:00.0: Fatal error during GPU init
[2.654011] [TTM] Trying to take down uninitialized memory manager type 1.
As far as issues with kernel versions, I would say anything past the 3.13.0-32.. If the memory doesn't fail me, at one point I had the 3.18.* something installed and was still being affected by it.
The problem with newer kernel versions is that the "full brightness" corresponds to something around 25-50% of the full brightness I get using the kernel 3.13.0-32.
(This last sentence might be a little bit confusing so later at night I'll try to take a couple of photos between the 3.13.0-32 and 3.13.0-48).
Thank you for all the help thus far,
All the best.