ASRock.com Homepage
Forum Home Forum Home > Technical Support > AMD Motherboards
  New Posts New Posts RSS Feed - Issues getting video output from discrete GPU
  FAQ FAQ  Forum Search Search  Events   Register Register  Login Login

Issues getting video output from discrete GPU

 Post Reply Post Reply
Author
Message
unscathed2 View Drop Down
Newbie
Newbie


Joined: 19 hours 7 minutes ago
Status: Offline
Points: 20
Post Options Post Options   Thanks (0) Thanks(0)   Quote unscathed2 Quote  Post ReplyReply Direct Link To This Post Topic: Issues getting video output from discrete GPU
    Posted: 14 hours 3 minutes ago at 1:15pm
I'm unable to get any signal from the video outputs from my GPU (Radeon 7900 GRE). However, I know that the GPU works; my OS detects it, and when I play games, it is definitely using the discrete GPU for graphics processing (it is performing far and beyond what the integrated unit should be able to handle, and hardware tools report that the discrete card is drawing power and using its cores/vram). HOWEVER, the rendering output is being piped through my motherboard HDMI output.

I have tried (and failed) to disable my iGPU to force the computer to only use the discrete GPU. I have a ASRock B650I; when I tinker with the iGPU settings (via Advanced > AMD CBS > NBIO Common Options > GFX Configuration > dGPU Only Mode, and I've both set this to Enabled and Disabled with the iGPU disabled) has resulted in no video output from either the mobo or the dGPU. In order to do anything, I have to flash the BIOS flash to reset that setting to restore functionality.

I've tried the following BIOS settings:
dGPU Only Mode = Auto (this is the default that works, and my OS detects both graphics but I do not get HDMI output from my video card)

dGPU Only Mode = Enabled (no HDMI output from either my mobo or my GPU)

dGPU Only Mode = Disabled, iGPU = Disabled (same as above)

Not sure if I'm picking the wrong BIOS settings or if it's something else. I haven't tested the DP outputs because I don't have a DP cable atm.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.04
Copyright ©2001-2021 Web Wiz Ltd.

This page was generated in 0.094 seconds.