Recently upgraded to Big Sur from Catalina, and mostly everything works! Have an Asrock x570 Taichi MB, Ryzen 3900X, Sapphire Pulse RX580 with OC 0.6.5. My main monitor (lenovo 4K) when connected via DP works fine when booting in verbose mode, but as soon as the OS is loaded the monitor goes black and says no signal. The hdmi ports work fine. Any thoughts on what the issue might be?
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Hello Guest. Before you post check the Troubleshooting guide here, Dortania Troubleshooting
RX580 Displayport no signal
- Thread starter cullenmq
- Start date
- Joined
- Nov 5, 2020
- Messages
- 6
Have you tried agdpmod=pikera boot flag?
Thanks for the tip! Reminded me I totally forgot to update Lilu.kext and WhateverGreen.kext, which did the trick!
- Joined
- Sep 29, 2020
- Messages
- 103
sometimes I have this problem too with my x570 Taichi, even with agdpmod=pikera boot flag
PC is working, you can login in with ssh.
Try a “blind” login. Exemple, if your username is cullenmq type c and a return on keyboard and after your password and return. After few second you can see something verbose on screen and after the login screen.
PC is working, you can login in with ssh.
Try a “blind” login. Exemple, if your username is cullenmq type c and a return on keyboard and after your password and return. After few second you can see something verbose on screen and after the login screen.
- Joined
- Sep 29, 2020
- Messages
- 103
maybe can help
In Terminal type
look at gpuswitch
usually is set to 2, but for us is better setting it to 0
pmsetIn Terminal type
pmset -glook at gpuswitch
- 2 is integrated gpu both on cable and battery
- 1 is dedicated gpu only with power connected; integrated gpu on battery power
- 0 is dedicated gpu on both ac and battery
usually is set to 2, but for us is better setting it to 0
sudo pmset -a gpuswitch 0
