AnsweredAssumed Answered

Vega 64 Crossfire Freesync Issue

Question asked by on Jan 18, 2019

Evening guys,


System specs below, I have dual Vega 64's running in crossfire with a MSI MPG27QC. When running a single card, Freesync works absolutely fine, however in crossfire I am often getting a black screen which swaps to a no DP input detected error and the display going to standby shortly after.


Things I have tried,


  • Rolling back AMD drivers (tried versions over last six months)
  • DDU uninstall each time
  • Uninstall monitor driver
  • Fresh OS install
  • Different DP input
  • Different DP cable
  • Removed any OC


Eventually it'll work in full screen for a game, but next time you shut down and restart it does it again, Currently on 19.1.1


Not sure if there is anything else I can try, if I disable crossfire in Radeon Settings, it works fine, enable it, it doesn't



Intel I7 4790K OC to 4.6 @ 1.27V


Asus Z97 Sabertooth Mk1


Corsair H100i in Push/Pull with 4x SP120 fans.


Corsair Vengeance 16Gb

Video Card(s)

Sapphire Vega64 Nitro+ x2 Crossfire


Samsung 840 Pro SSD (OS), 2TB Caviar Black SATA III Secondary,  2TB Caviar Black SATA III Tertiary,




Corsair 750D

Audio Device(s)

Onboard 7.1 HD Audio

Power Supply

Seasonic PRIME Ultra 1300w PSU