My computer is a dell alienware 18 with dual hd8970m， dell never update graphic driver since 2015，so I download the latest driver(18.8.1) from amd，but when I install it the screen turn to black(the back light are still on and other functions seems work normally except display，I can still switch the caps lock and num lock, if I press the power button computer will go to hibernation) and never recover to normal(I wait it long enough，10 hours maybe more). I shut it down，and reboot，after the alienware logo screen went to black display nothing on it， that means driver are not installed properly. I reinstall Windows and try it aging and the same problem happened aging. I found another one are facing the exactly same problem，find him on Alienware 18 M290x Driver issue :: Hardware and Operating Systems He find the latest driver which can installed successfully is 18.3.3(actually it`s 18.3.4，I tried，and it works fine，but newer driver are not tested. ) It seems the problem is caused by the different between 18.3.4 and 18.5.1(18.5.1 is the oldest driver which can`t install successfully I found.)
operating system：Windows 10 1803 17134.112
graphic cards：dual R9 M290X
graphic driver version：Adrenalin Edition 18.5.1 and 18.8.1(both failed to install)
Wishes amd notice this problem and fix it.
I`m a chinese and my english is pretty bad，so it maybe hard to understand what I`m saying，sorry about that.
Black Screen on Laptop coolhand have same problem with me，when the screen turn to black he connect to another screen with HDMI and it display normally，so the driver installed correctly but a bug may caused driver use HDMI as primary and internal screen show nothing. Sounds like this problem is easy to fix by amd if they noticed us.......
Did you update the Intel drivers before trying to install the AD driver? Laptop graphics update...How to
Did you do a clean install? Clean Install AMD Graphics Drivers
Did you disconnect from the internet until the drivers were fully installed and the computer rebooted? DDU has new instructions..make sure you have the latest version
Thanks for your advises ，I tried almost everything，even to install in a fresh installed Windows 10， but it does not work，it is a driver issue I am almost sure now， because I found 4 maybe more people have the exact same problem with almost same hardware. If you are a employer of amd please tell them about this problem.
I have finally solved this and am happily running 19.6.2 on my Alienware 18 with dual m290x cards. You basically have to buy a mini-DisplayPort to HDMI cable and feed the mini-DP output back in to the laptop's HDMI-In port. The black screen issue goes away immediately. You don't need to continue using the HDMI port forever: once the drivers are installed you can link/unlink the displays within the Radeon software, unplug the cable and use the laptop screen normally.
I have an Alienware M18x R2 with dual HD 7970M cards. I'll give this an attempt to see if this works for my older laptop. I'll post a reply to this once I have the results.
I've just noticed something... you claim to have dual m290x cards, but your screenshots state you have HD 8970m cards. Can you explain this discrepancy?
The m290x is just a renamed version of the HD8970M. Some drivers detect it under one name, some tools call it by the other. Here’s the actual product, showing both names.