I was able to fix this by editing my grub settings.
http://askubuntu.com/questions/162409/brightness-not-working-on-an-hp-
pavilion-dv6-with-a-ati-radeon-hd6770m
The file i edit is
/etc/default/grub
Before fix (when it didnt work)
GRUB_CMLINE_LINUX_DEFAULT="quiet splash nomodeset"
The
Public bug reported:
Per Christopher M. Penalver (penalvch) advice on bug #1574125 i am
submitting this system information and bug report.
This problem only began occuring in late September 2016, before that the
laptop never had a problem waking up from suspend.
Thanks.
ProblemType: Bug
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