My esteemed colleague jayeff https://www.ifixit.com/User/1361892/jayeff is probably correct but before giving up on the hardware try completely uninstalling the drivers using:
+
My esteemed colleague jayeff is probably correct but before giving up on the hardware try completely uninstalling the drivers using:
My esteemed colleague jayeff is probably correct but before giving up on the hardware try completely uninstalling the drivers using:
+
My esteemed colleague jayeff https://www.ifixit.com/User/1361892/jayeff is probably correct but before giving up on the hardware try completely uninstalling the drivers using:
My esteemed colleague jayeff is probably correct but before giving up on the hardware try completely uninstalling the drivers using:
[link|https://www.wagnardsoft.com/display-driver-uninstaller-ddu-|Display Drive Uninstaller (DDU)]
I have found this app quite useful over the years - old and new GPU.
It is quite straightforward to use but do read the manual before use as sequence of actions is important.
Good luck.