After upgrading an operating system from WIN7 to WIN10, no screen display is transferred to an HDMI jack. The video card is ATI Mobility Radeon HD 3470 [Acer] and the driver is ATI Mobility Radeon HD 3400 Series
The graphics are too old...all support and updates come from Windows update now.
Do you have any yellow marks in Device manager?
Windows® 10 Driver Support for Discrete AMD Radeon™ Graphics Products
Yes. I have a yellow marks in Device manager. I tried to update the driver and the answer was that the best driver is already installed.
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