1 Reply Latest reply on Dec 21, 2018 5:17 AM by nem_

    Losing HDMI/display signal before Ubuntu user login, after amdgpu 18.40/18.30 driver installation




      with newer amdgpu and amdgpu-pro drivers, a fresh Ubuntu 18.04 LTS installation goes to black screen, then loses display signal, before user login.

      This can be resolved by going to recovery mode and amdgpu-uninstall the driver.


      Tested driver versions

      driver versionamdgpu affected?
      amdgpu-pro affected?



      18.20 does not show this problem.

      Any information on upcoming fixes or tweaks welcome.


      • AMD Graphics Card
        • ASUS RX Vega56 STRIX OC
      • Desktop or Laptop System
        • Desktop
      • Operating System
        • Ubuntu 18.04 LTS
      • Driver version installed
        • both 18.30 and 18.40, amdgpu and amdgpu-pro
      • Display Devices
        • HDMI, AOC Q3277PQU
      • Motherboard + Bios Revision
        • Asrock B450M Pro4, P1.60
      • CPU/APU
        • Ryzen 2400G
      • Power Supply Unit  Make, Model & Wattage
        • Corsair RM 650x
      • RAM
        • 16GB