Hello. Got a old HP notebook, it's a APU A4-3305M. Made a clean install of Windows 10 CU 15063.296 and windows updated both gpu drivers, with Catalyst and switchable gpu options. HD 6480G Version: 15.201.1151.0 Date: 08/21/2015 ID: PCI\VEN_1002&DEV_9649&SUBSYS_1860103C&REV_00 6600M Version: 15.201.1151.1008 Date: 11/04/2015 ID: PCI\VEN_1002&DEV_6741&SUBSYS_1860103C&REV_00 Catalyst version: 2015.1104.1643.30033 The problem is that i'm getting a long black screen before logon screen, arround 5 minutes. After that it continues. I remember having a similar issue with Windows 8, but at time i just downloaded the latest catalyst from AMD and it fixed. But now i don't remember with catalyst version it was that come it both drivers. Any other solution? Thanks.
Did you tried cleaning everything Radeon driver related with latest DDU and then installing these drivers: https://www.dropbox.com/s/06eha3utvr9l8jh/16.101.X_Repack_Catalyst-Win10_64_17.1.X_Feb9.7z?dl=0 ...from this thread: http://forums.guru3d.com/showthread.php?t=409002