I have problem with my samsung NP530U4E.
1- I can not adjust brigtness from the keyboard and from the power settings. I installed the latest driver for hd 4000 but the result was same. I installed the previous driver but still couldn' adjust it.
2- I can not get display from HDMI port. I tried with different hdmi cables and with different monitors.
I am using windows 8 x64.
hd 4000 driver version is 9.18.10.3165.
I searched about these two problems from internet but couldn' t find a solution. At the moment, brightness is very poor and i can not adjust it. also i can not get hdmi output which is very important for me.
How can i solve these 2 problems?