I have an HP Pavilion dv6 Notebook PC. Just updated to windows 10 which went very smooth. During the overall upgrade process I was prompted to update my video driver which I did. Current version is 15.200.1062.1004 driver date: 8/3/2015. Before the update no problems. After the update the pc is having long delays (black screen) at cold boot time and waking up after sleeping. Eventually it does boot and all is well after windows comes up. At boot time the windows 10 circle is rotating for a short time then I get a black screen for about 1.5 minutes then I see my mouse then a rotating circle again for maybe 10 seconds and then I get the windows 10 splash screen. All is fine after the splash screen. Same thing happens during wake up procedure.
All windows updates are current and I simply followed the download procedure when I was initially prompted to do the driver update. I have checked for updates several times from AMD but I always get the current driver is up to date message. These black screens are so long it is very unacceptable. HP support site is no help for they just point me to windows 10 and manufacturer of the device, card, whatever. I have uninstalled the entire update and reinstalled at least twice with exactly the same results.
The black screens make me think the system is waiting for a response from the video card and finally times out. That's the way if feels. I have tried disabling the AMD services in the startup process but that didn't change a thing.
What can I do to stop getting the black screens and get back to a clean prompt boot?
Any help would be most welcome!!