A few weeks ago I noticed that my graphics driver would randomly and irrecoverably crash while gaming, and more rarely when watching Youtube. When this happened, switching the HDMI cable to a different video out port didn't help. This is happening both on my dedicated card (GeForce GTX 970) and on the integrated graphics:
- Dedicated card: Screen completely black, switching HDMI cable to the integrated graphics slot does nothing - the screen is not receiving video output and the only option is to restart.
- Integrated graphics: The current game or video freezes, hardware acceleration features (such as transparencies in browser tab tooltip, or Photoshop hardware acceleration) stop working. Switching the HDMI cable to the dedicated card gives a black screen, but switching back restores the video out (but not the driver). The only way to fix it is to restart.
- uninstalling and reinstalling both graphics (including through Guru3D DDU for a clean uninstall)
- trying a different cable
- trying a different monitor